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321

18 source records. Standards, editions and conditions are presented separately; matching grade names do not establish interchangeability.

Refer to each source for mass fractions and analysis type. Missing values are not treated as 0. Manufacturer typical values, standard guarantees and measured heat results must remain separate. Use the material selector for calculations and condition selection.

Open condition selection, comparison and carbon-equivalent tools for 321 →

321 · ASTM A313/A313M-2018

Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

Material category
Stainless steel
Subcategory
Austenitic stainless steel
Material form
Reference record
Original record status
Historical-edition reference
Standard edition
ASTM A313/A313M-2003
Table / clause
Table 1, footnotes A–B; clauses 1.1, 5, 6
PDF page references
1、2

Carbon-equivalent reference

IIW / CEV: not directly applicable to this material category
Pcm (Ito–Bessyo): not directly applicable to this material category
CET: not directly applicable to this material category

Composition

ElementComposition requirement
C≤ 0.08 (lower limit not stated)
Mn≤ 2 (lower limit not stated)
P≤ 0.045 (lower limit not stated)
S≤ 0.03 (lower limit not stated)
Si≤ 1 (lower limit not stated)
Cr17 ~ 19
Ni9 ~ 12
Ti≥5×C

Applicability and limitations

2003 edition covering round stainless steel spring wire; mass fraction wt%.; Table 1 Footnote B: Values without a listed range are upper limits; blanks are unspecified and shall not be filled as zero. Table 1 UNS S32100; Mechanical properties for categories such as A/B, or for cold-drawn and subsequently aged conditions, cannot be inferred from the composition table.. 2205 is not listed in this edition; do not add it based on similar grade designations.; Original texts of the 2018 and 2025 reaffirmations have not been verified.. Spring wire application does not automatically equal suitability for cold heading; Do not automatically add products to the supply offering.. Ti≥5×measured C; No fixed upper limit for Ti was given in the original table; 5 times the C upper limit shall not be used as a fixed lower limit for Ti.

Combined limits

Ti
Minimum-content expression
5*C

Verification notes

The current chemical composition is based on original 2003; Original 2018 and reaffirmed 2025 have not been verified; equivalence between editions is not assumed.

321 · ASTM A313/A313M-2018

Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

Material category
Stainless steel
Subcategory
Austenitic stainless steel
Material form
Reference record
Original record status
Historical-edition reference
Standard edition
ASTM A313/A313M-2003
Table / clause
Table 1, footnotes A–B; clauses 1.1, 5, 6
PDF page references
1、2

Carbon-equivalent reference

IIW / CEV: not directly applicable to this material category
Pcm (Ito–Bessyo): not directly applicable to this material category
CET: not directly applicable to this material category

Composition

ElementComposition requirement
C≤ 0.08 (lower limit not stated)
Mn≤ 2 (lower limit not stated)
P≤ 0.045 (lower limit not stated)
S≤ 0.03 (lower limit not stated)
Si≤ 1 (lower limit not stated)
Cr17 ~ 19
Ni9 ~ 12
Ti≥5×C

Applicability and limitations

2003 edition covering round stainless steel spring wire; mass fraction wt%.; Table 1 Footnote B: Values without a listed range are upper limits; blanks are unspecified and shall not be filled as zero. Table 1 UNS S32100; Mechanical properties for categories such as A/B, or for cold-drawn and subsequently aged conditions, cannot be inferred from the composition table.. 2205 is not listed in this edition; do not add it based on similar grade designations.; Original texts of the 2018 and 2025 reaffirmations have not been verified.. Spring wire application does not automatically equal suitability for cold heading; Do not automatically add products to the supply offering.. Ti≥5×measured C; No fixed upper limit for Ti was given in the original table; 5 times the C upper limit shall not be used as a fixed lower limit for Ti.

Combined limits

Ti
Minimum-content expression
5*C

Verification notes

The current chemical composition is based on original 2003; Original 2018 and reaffirmed 2025 have not been verified; equivalence between editions is not assumed.

321 · SAE J405-1998

Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

Material category
Stainless steel
Subcategory
Austenitic stainless steel
Material form
Reference record
Original record status
Original standard verified
Standard edition
SAE J405 JUN1998
Table / clause
Table 1, page 2 / page 5, notes 1–7
PDF page references
1、3、5

Carbon-equivalent reference

IIW / CEV: not directly applicable to this material category
Pcm (Ito–Bessyo): not directly applicable to this material category
CET: not directly applicable to this material category

Composition

ElementComposition requirement
C≤ 0.08 (lower limit not stated)
Mn≤ 2.0 (lower limit not stated)
P≤ 0.045 (lower limit not stated)
S≤ 0.03 (lower limit not stated)
Si≤ 0.75 (lower limit not stated)
Cr17.0 ~ 19.0
Ni9.0 ~ 12.0
N≤ 0.1 (lower limit not stated)
Ti≤ 0.7 (lower limit not stated)

Applicability and limitations

Based on Table 1 of the original SAE J405 JUN1998; mass fraction wt%. Note 1: a value without a stated range or lower bound is a maximum; dashes mean unspecified and are not replaced with zero. Note 5: Cb and Nb refer to the same element. Verify alloy elements against the applicable UNS row and additional conditions. Note 4: carbon analysis is generally reported to 0.01%, or to 0.001% for low-carbon types. This is reporting precision and does not relax composition limits. Type names in original Table 1 may include common names or a ASTM naming footnote. Search aliases use only explicit same-row relationships; interchangeability across standards is not inferred. 1998 is the actual composition source. The requested newer edition has not been verified, and agreement between editions is not assumed. Ti≥0+5×(C+N), and ≤0.7; check jointly using measured composition from the same heat, not independent combinations of elemental maxima.

Combined limits

Combined-element limits
  • Requirement
    Ti≥0+5×(C+N), and ≤0.7
    Element coefficient
    Ti
    1
    C
    -5
    N
    -5
    Lower limit
    0

Verification notes

Composition and table notes were checked using the UNS correspondence in the original 1998 text.

321 · SAE J405-2018

Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

Material category
Stainless steel
Subcategory
Austenitic stainless steel
Material form
Reference record
Original record status
Historical-edition reference
Standard edition
SAE J405 JUN1998
Table / clause
Table 1, page 2 / page 5, notes 1–7
PDF page references
1、3、5

Carbon-equivalent reference

IIW / CEV: not directly applicable to this material category
Pcm (Ito–Bessyo): not directly applicable to this material category
CET: not directly applicable to this material category

Composition

ElementComposition requirement
C≤ 0.08 (lower limit not stated)
Mn≤ 2.0 (lower limit not stated)
P≤ 0.045 (lower limit not stated)
S≤ 0.03 (lower limit not stated)
Si≤ 0.75 (lower limit not stated)
Cr17.0 ~ 19.0
Ni9.0 ~ 12.0
N≤ 0.1 (lower limit not stated)
Ti≤ 0.7 (lower limit not stated)

Applicability and limitations

Based on Table 1 of the original SAE J405 JUN1998; mass fraction wt%. Note 1: a value without a stated range or lower bound is a maximum; dashes mean unspecified and are not replaced with zero. Note 5: Cb and Nb refer to the same element. Verify alloy elements against the applicable UNS row and additional conditions. Note 4: carbon analysis is generally reported to 0.01%, or to 0.001% for low-carbon types. This is reporting precision and does not relax composition limits. Type names in original Table 1 may include common names or a ASTM naming footnote. Search aliases use only explicit same-row relationships; interchangeability across standards is not inferred. 1998 is the actual composition source. The requested newer edition has not been verified, and agreement between editions is not assumed. Ti≥0+5×(C+N), and ≤0.7; check jointly using measured composition from the same heat, not independent combinations of elemental maxima.

Combined limits

Combined-element limits
  • Requirement
    Ti≥0+5×(C+N), and ≤0.7
    Element coefficient
    Ti
    1
    C
    -5
    N
    -5
    Lower limit
    0

Verification notes

The current composition is based on the 1998 original. The specified newer edition has not been checked; equivalence between editions is not assumed.

321 · ASTM A313/A313M-2003

Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

Material category
Stainless steel
Subcategory
Stainless steel
Material form
Reference record
Original record status
Original standard verified
Standard edition
ASTM A313/A313M-2003
Table / clause
Table 1, footnotes A–B; clauses 1.1, 5, 6
PDF page references
1、2

Carbon-equivalent reference

IIW / CEV: not directly applicable to this material category
Pcm (Ito–Bessyo): not directly applicable to this material category
CET: not directly applicable to this material category

Composition

ElementComposition requirement
C≤ 0.08 (lower limit not stated)
Mn≤ 2 (lower limit not stated)
P≤ 0.045 (lower limit not stated)
S≤ 0.03 (lower limit not stated)
Si≤ 1 (lower limit not stated)
Cr17 ~ 19
Ni9 ~ 12
Ti≥5×C

Applicability and limitations

2003 edition covering round stainless steel spring wire; mass fraction wt%.; Table 1 Footnote B: Values without a listed range are upper limits; blanks are unspecified and shall not be filled as zero. Table 1 UNS S32100; Mechanical properties for categories such as A/B, or for cold-drawn and subsequently aged conditions, cannot be inferred from the composition table.. 2205 is not listed in this edition; do not add it based on similar grade designations.; Original texts of the 2018 and 2025 reaffirmations have not been verified.. Spring wire application does not automatically equal suitability for cold heading; Do not automatically add products to the supply offering.. Ti≥5×measured C; No fixed upper limit for Ti was given in the original table; 5 times the C upper limit shall not be used as a fixed lower limit for Ti.

Combined limits

Ti
Minimum-content expression
5*C

Verification notes

Original 2003, Table 1 and footnotes have been checked; Original 2018/2025 remains unavailable.

321 · ASTM A358/A358M-2024

Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

Material category
Stainless steel
Subcategory
Austenitic stainless steel
Material form
Welded-pipe reference
Original record status
Historically referenced table verified
Standard edition
ASTM A240/A240M-2014
Table / clause
Table 1 and footnotes A–O
PDF page references
1、3、6

Carbon-equivalent reference

IIW / CEV: not directly applicable to this material category
Pcm (Ito–Bessyo): not directly applicable to this material category
CET: not directly applicable to this material category

Composition

ElementComposition requirement
C≤ 0.08 (lower limit not stated)
Mn≤ 2.0 (lower limit not stated)
P≤ 0.045 (lower limit not stated)
S≤ 0.03 (lower limit not stated)
Si≤ 0.75 (lower limit not stated)
Cr17.0 ~ 19.0
Ni9.0 ~ 12.0
N≤ 0.1 (lower limit not stated)
Ti≤ 0.7 (lower limit not stated)

Applicability and limitations

The chemical composition currently uses only the verified base-material ranges in the original ASTM A240/A240M—2014; The applicable composition-standard edition and full requirements for A358—2024 have not been verified; compliance with a newer edition cannot be confirmed on this basis. Clause 6.1.1 of A358—2024 references A240/A240M base material; Clause 7.2 specifies separate requirements for welding filler metal; No weld-metal or mixed whole-tube composition is currently provided. Class 1 are welding and radiographic examination classes, not separate chemical-composition grades; This record does not establish capability to supply welded tube; a linked wire-rod product does not establish direct supply of A358 welded tube. Table 1 gives heat-analysis mass percentages; A single value without a stated range or minimum is a maximum; unspecified elements are not entered as zero. Cb and Nb are the same element; Where both a formula and a fixed limit apply, the stricter limit is used. This is a plate, sheet and strip standard; cold-heading wire applications and actual supply require separate verification. Clause 4.1 also requires compliance with the applicable provisions of ASTM A480/A480M; This record displays the heat composition in Table 1; it does not establish verification of A480 or all product acceptance requirements. Other elements in the original table: Ti 5 × (C + N) min, 0.70 max; See the limits below for the specific coupled requirements.

Combined limits

Combined-element limits
  • Element coefficient
    Ti
    1
    C
    -5
    N
    -5
    Lower limit
    0
    Upper limit
    Not stated
    Requirement
    Ti≥5×(C+N)
Elements requiring measured values from the same heat

    Verification notes

    Historical base-material reference: ASTM A240/A240M—2014; Weld metal and the applicable A358—2024 edition have not been verified

    321 · Walsin Lihwa official website catalog (steel billets and bars; file named 2024, original edition not indicated)

    Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

    Material category
    Stainless steel
    Subcategory
    Stainless steel
    Material form
    Bars
    Original record status
    Manufacturer source verified
    Document edition
    Official website document 2024_Walsin_Catalog_YT-JY-1.pdf; Publication date and edition number not specified on inner pages
    Document title
    Available Stainless Steel Grades & Chemical Composition — For Stainless Steel Billet & Bar
    Table / clause
    Steel grades and chemical composition table
    PDF page references
    7
    Unit
    Percentages as stated in the original table; refer to the source for the specific basis
    Analysis type
    Analysis type not stated
    Manufacturer
    Walsin Lihwa

    Source document

    Carbon-equivalent reference

    Estimate from manufacturer-published ranges, not a standard guarantee or measured heat result; formula applicability requires review against the application and process.

    IIW / CEV: not directly applicable to this material category
    Pcm (Ito–Bessyo): not directly applicable to this material category
    CET: not directly applicable to this material category

    Composition

    ElementComposition requirement
    C≤ 0.08 (lower limit not stated)
    Si≤ 1.0 (lower limit not stated)
    Mn≤ 2.0 (lower limit not stated)
    P≤ 0.045 (lower limit not stated)
    S≤ 0.03 (lower limit not stated)
    Ni9.0 ~ 12.0
    Cr17.0 ~ 19.0
    Ti≤ 0.7 (lower limit not stated)

    Applicability and limitations

    Walsin Lihwa official catalogue, PDF physical page 7

    printed page 10, row 26; manufacturer's composition table, %, covering billets and bars. Analysis type is not stated. The official filename contains 2024, but no revision number was found inside; this is neither a verified edition of the cross-referenced standards nor a supply guarantee by our company. Condition: Ti=5*C-0.7; the minimum is coupled and the formula is not converted into a fixed numerical value.

    Composition conditions

    Combined limits

    Combined-element limits
    • Element coefficient
      Ti
      1
      C
      -5.0
      Lower limit
      0

    Verification notes

    Composition, conditional rows and linked requirements checked cell by cell against the original image; anomalous row 303 on page 10 excluded.

    321 · Walsin Lihwa official website catalog (steel billets and bars; file named 2024, original edition not indicated)

    Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results

    Material category
    Stainless steel
    Subcategory
    Stainless steel
    Material form
    Bars
    Original record status
    Manufacturer source verified
    Document edition
    Official website document 2024_Walsin_Catalog_YT-JY-1.pdf; Publication date and edition number not specified on inner pages
    Document title
    Available Stainless Steel Grades & Chemical Composition — For Stainless Steel Billet & Bar
    Table / clause
    Steel grades and chemical composition table
    PDF page references
    7
    Unit
    Percentages as stated in the original table; refer to the source for the specific basis
    Analysis type
    Analysis type not stated
    Manufacturer
    Walsin Lihwa

    Source document

    Carbon-equivalent reference

    Estimate from manufacturer-published ranges, not a standard guarantee or measured heat result; formula applicability requires review against the application and process.

    IIW / CEV: not directly applicable to this material category
    Pcm (Ito–Bessyo): not directly applicable to this material category
    CET: not directly applicable to this material category

    Composition

    ElementComposition requirement
    C≤ 0.08 (lower limit not stated)
    Si≤ 1.0 (lower limit not stated)
    Mn≤ 2.0 (lower limit not stated)
    P≤ 0.045 (lower limit not stated)
    S≤ 0.03 (lower limit not stated)
    Ni9.0 ~ 12.0
    Cr17.0 ~ 19.0
    N≤ 0.1 (lower limit not stated)
    Ti≤ 0.7 (lower limit not stated)

    Applicability and limitations

    Walsin Lihwa official catalogue, PDF physical page 7

    printed page 10, row 27; manufacturer's composition table, %, covering billets and bars. Analysis type is not stated. The official filename contains 2024, but no revision number was found inside; this is neither a verified edition of the cross-referenced standards nor a supply guarantee by our company. Condition: Ti=5*(C+N)-0.7; the minimum is coupled and the formula is not converted into a fixed numerical value.

    Composition conditions

    Combined limits

    Combined-element limits
    • Element coefficient
      Ti
      1
      C
      -5.0
      N
      -5.0
      Lower limit
      0

    Verification notes

    Composition, conditional rows and linked requirements checked cell by cell against the original image; anomalous row 303 on page 10 excluded.

    321 · ASME SA-240

    Original-source verification is incomplete; this is not a formal standard reference

    Material category
    Stainless steel
    Subcategory
    Austenitic stainless steel
    Material form
    Reference record
    Verification status
    Reference data; original source not verified

    Carbon-equivalent reference

    IIW / CEV: not directly applicable to this material category
    Pcm (Ito–Bessyo): not directly applicable to this material category
    CET: not directly applicable to this material category

    Composition

    ElementComposition requirement
    C≤ 0.08 (lower limit not stated)
    Cr17 ~ 19
    Mn≤ 2 (lower limit not stated)
    N≤ 0.1 (lower limit not stated)
    Ni9 ~ 12
    P≤ 0.045 (lower limit not stated)
    S≤ 0.03 (lower limit not stated)
    Si≤ 0.75 (lower limit not stated)

    Applicability and limitations

    A match in the materials database does not establish suitability for cold heading or guarantee finished-product strength. Confirmation must consider wire condition, deformation, heat treatment and tests on actual parts.

    321 · ASTM A 314-2025

    Original-source verification is incomplete; this is not a formal standard reference

    Material category
    Stainless steel
    Subcategory
    Austenitic stainless steel
    Material form
    Reference record
    Verification status
    Reference data; original source not verified

    Carbon-equivalent reference

    IIW / CEV: not directly applicable to this material category
    Pcm (Ito–Bessyo): not directly applicable to this material category
    CET: not directly applicable to this material category

    Composition

    ElementComposition requirement
    C≤ 0.08 (lower limit not stated)
    Cr17 ~ 19
    Mn≤ 2 (lower limit not stated)
    Ni9 ~ 12
    P≤ 0.045 (lower limit not stated)
    S≤ 0.03 (lower limit not stated)
    Si≤ 1 (lower limit not stated)

    Applicability and limitations

    A match in the materials database does not establish suitability for cold heading or guarantee finished-product strength. Confirmation must consider wire condition, deformation, heat treatment and tests on actual parts.

    321 · ASTM A240/240M-2018

    Original-source verification is incomplete; this is not a formal standard reference

    Material category
    Stainless steel
    Subcategory
    Austenitic stainless steel
    Material form
    Reference record
    Verification status
    Reference data; original source not verified

    Carbon-equivalent reference

    IIW / CEV: not directly applicable to this material category
    Pcm (Ito–Bessyo): not directly applicable to this material category
    CET: not directly applicable to this material category

    Composition

    ElementComposition requirement
    C≤ 0.08 (lower limit not stated)
    Cr17 ~ 19
    Mn≤ 2 (lower limit not stated)
    N≤ 0.1 (lower limit not stated)
    Ni9 ~ 12
    P≤ 0.045 (lower limit not stated)
    S≤ 0.03 (lower limit not stated)
    Si≤ 0.75 (lower limit not stated)

    Applicability and limitations

    A match in the materials database does not establish suitability for cold heading or guarantee finished-product strength. Confirmation must consider wire condition, deformation, heat treatment and tests on actual parts.

    321 · ASTM A240/A240M-2020

    Original-source verification is incomplete; this is not a formal standard reference

    Material category
    Stainless steel
    Subcategory
    Austenitic stainless steel
    Material form
    Reference record
    Verification status
    Reference data; original source not verified

    Carbon-equivalent reference

    IIW / CEV: not directly applicable to this material category
    Pcm (Ito–Bessyo): not directly applicable to this material category
    CET: not directly applicable to this material category

    Composition

    ElementComposition requirement
    C≤ 0.08 (lower limit not stated)
    Cr17 ~ 19
    Mn≤ 2 (lower limit not stated)
    N≤ 0.1 (lower limit not stated)
    Ni9 ~ 12
    P≤ 0.045 (lower limit not stated)
    S≤ 0.03 (lower limit not stated)
    Si≤ 0.75 (lower limit not stated)

    Applicability and limitations

    A match in the materials database does not establish suitability for cold heading or guarantee finished-product strength. Confirmation must consider wire condition, deformation, heat treatment and tests on actual parts.

    321 · ASTM A554-2026

    Original-source verification is incomplete; this is not a formal standard reference

    Material category
    Stainless steel
    Subcategory
    Austenitic stainless steel
    Material form
    Reference record
    Verification status
    Reference data; original source not verified

    Carbon-equivalent reference

    IIW / CEV: not directly applicable to this material category
    Pcm (Ito–Bessyo): not directly applicable to this material category
    CET: not directly applicable to this material category

    Composition

    ElementComposition requirement
    C≤ 0.08 (lower limit not stated)
    Cr17 ~ 19
    Mn≤ 2 (lower limit not stated)
    N≤ 0.1 (lower limit not stated)
    Ni9 ~ 12
    P≤ 0.045 (lower limit not stated)
    S≤ 0.03 (lower limit not stated)
    Si≤ 0.75 (lower limit not stated)

    Applicability and limitations

    A match in the materials database does not establish suitability for cold heading or guarantee finished-product strength. Confirmation must consider wire condition, deformation, heat treatment and tests on actual parts.

    321 · ASTM A959-2004

    Original-source verification is incomplete; this is not a formal standard reference

    Material category
    Stainless steel
    Subcategory
    Austenitic stainless steel
    Material form
    Reference record
    Verification status
    Reference data; original source not verified

    Carbon-equivalent reference

    IIW / CEV: not directly applicable to this material category
    Pcm (Ito–Bessyo): not directly applicable to this material category
    CET: not directly applicable to this material category

    Composition

    ElementComposition requirement
    C≤ 0.08 (lower limit not stated)
    Cr17 ~ 19
    Mn≤ 2 (lower limit not stated)
    N≤ 0.1 (lower limit not stated)
    Ni9 ~ 12
    P≤ 0.045 (lower limit not stated)
    S≤ 0.03 (lower limit not stated)
    Si≤ 1 (lower limit not stated)
    Ti0.5 ~ 0.7

    Applicability and limitations

    A match in the materials database does not establish suitability for cold heading or guarantee finished-product strength. Confirmation must consider wire condition, deformation, heat treatment and tests on actual parts.

    321 · ASTM A959-2019

    Original-source verification is incomplete; this is not a formal standard reference

    Material category
    Stainless steel
    Subcategory
    Austenitic stainless steel
    Material form
    Reference record
    Verification status
    Reference data; original source not verified

    Carbon-equivalent reference

    IIW / CEV: not directly applicable to this material category
    Pcm (Ito–Bessyo): not directly applicable to this material category
    CET: not directly applicable to this material category

    Composition

    ElementComposition requirement
    C≤ 0.08 (lower limit not stated)
    Cr17 ~ 19
    Mn≤ 2 (lower limit not stated)
    N≤ 0.1 (lower limit not stated)
    Ni9 ~ 12
    P≤ 0.045 (lower limit not stated)
    S≤ 0.03 (lower limit not stated)
    Si≤ 1 (lower limit not stated)

    Applicability and limitations

    A match in the materials database does not establish suitability for cold heading or guarantee finished-product strength. Confirmation must consider wire condition, deformation, heat treatment and tests on actual parts.

    321 · SAE J467b-1956

    Original-source verification is incomplete; this is not a formal standard reference

    Material category
    Stainless steel
    Subcategory
    Special alloy steel
    Material form
    Reference record
    Verification status
    Reference data; original source not verified

    Carbon-equivalent reference

    IIW / CEV: not directly applicable to this material category
    Pcm (Ito–Bessyo): not directly applicable to this material category
    CET: not directly applicable to this material category

    Composition

    ElementComposition requirement
    C0.04 ~ 0.04
    Cr18.5 ~ 18.5
    Mn1 ~ 1
    Ni11 ~ 11
    Si0.4 ~ 0.4
    Ti0.4 ~ 0.4

    Applicability and limitations

    A match in the materials database does not establish suitability for cold heading or guarantee finished-product strength. Confirmation must consider wire condition, deformation, heat treatment and tests on actual parts.

    321 · CNS 3477-2016

    Original-source verification is incomplete; this is not a formal standard reference

    Material category
    Stainless steel
    Subcategory
    Austenitic stainless steel
    Material form
    Reference record
    Verification status
    Reference data; original source not verified

    Carbon-equivalent reference

    IIW / CEV: not directly applicable to this material category
    Pcm (Ito–Bessyo): not directly applicable to this material category
    CET: not directly applicable to this material category

    Composition

    ElementComposition requirement
    C≤ 0.08 (lower limit not stated)
    Cr17 ~ 19
    Mn≤ 2 (lower limit not stated)
    Ni9 ~ 13
    P≤ 0.045 (lower limit not stated)
    S≤ 0.03 (lower limit not stated)
    Si≤ 1 (lower limit not stated)

    Applicability and limitations

    A match in the materials database does not establish suitability for cold heading or guarantee finished-product strength. Confirmation must consider wire condition, deformation, heat treatment and tests on actual parts.

    321 · Q/RP 007-2018

    Original-source verification is incomplete; this is not a formal standard reference

    Material category
    Stainless steel
    Subcategory
    Austenitic stainless steel
    Material form
    Reference record
    Verification status
    Reference data; original source not verified

    Carbon-equivalent reference

    IIW / CEV: not directly applicable to this material category
    Pcm (Ito–Bessyo): not directly applicable to this material category
    CET: not directly applicable to this material category

    Composition

    ElementComposition requirement
    C≤ 0.08 (lower limit not stated)
    Cr17 ~ 19
    Cu≤ 0.75 (lower limit not stated)
    Mn≤ 2 (lower limit not stated)
    N≤ 0.05 (lower limit not stated)
    Ni9 ~ 12
    P≤ 0.045 (lower limit not stated)
    S≤ 0.015 (lower limit not stated)
    Si≤ 1 (lower limit not stated)

    Applicability and limitations

    A match in the materials database does not establish suitability for cold heading or guarantee finished-product strength. Confirmation must consider wire condition, deformation, heat treatment and tests on actual parts.

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