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S30940

3 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 S30940 →

S30940 · 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
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、2、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)
Cr22.0 ~ 24.0
Ni12.0 ~ 16.0
Nb≤ 1.1 (lower limit not stated)

Applicability and limitations

Based on original SAE J405 JUN1998, Table 1; Mass fraction wt%, note 1: values without a stated range or minimum are maxima; a dash means unspecified and is not entered as zero. Note 5: Cb and Nb denote the same element; Alloying elements must be checked against the corresponding UNS row and additional conditions. Note 4: ordinary carbon analysis is reported to 0.01%, and low-carbon types to 0.001%; This is reporting precision and does not widen composition limits. Type names in original Table 1 may include a common name or a ASTM designation footnote; Search aliases follow only explicit correspondences on the same row; substitution across standards is not assessed automatically. 1998 is the actual composition basis; The specified newer edition has not been verified; equivalence between editions is not assumed. Nb≥10×C from the same heat and ≤1.10%; The upper limit of C multiplied by 10 cannot be treated as a fixed lower limit for Nb.

Combined limits

Combined-element limits
  • Requirement
    Nb≥10C
    Element coefficient
    Nb
    1
    C
    -10
    Lower limit
    0

Verification notes

Corresponding UNS rows and table notes in the 1998 original have been checked; this does not verify a newer edition.

S30940 · ASTM A240/A240M-2014

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 record
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)
Cr22.0 ~ 24.0
Ni12.0 ~ 16.0
Nb≤ 1.1 (lower limit not stated)

Applicability and limitations

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: Cb 10×C min, 1.10 max; See the limits below for the specific coupled requirements.

Combined limits

Combined-element limits
  • Element coefficient
    Nb
    1
    C
    -10
    Lower limit
    0
    Upper limit
    Not stated
    Requirement
    Nb≥10×C
Elements requiring measured values from the same heat

    S30940 · ASTM A312/A312M-2017

    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 record
    Standard edition
    ASTM A312/A312M-2017
    Table / clause
    Table 1, footnotes A–M and clause 7.1
    PDF page references
    1、2、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≤ 1.0 (lower limit not stated)
    Cr22.0 ~ 24.0
    Ni12.0 ~ 16.0
    Mo≤ 0.75 (lower limit not stated)
    Nb≤ 1.1 (lower limit not stated)

    Applicability and limitations

    Table 1 values are mass percentages; a single value is a maximum, and an ellipsis means unspecified—no zero is inferred. Clause 7.1 requires compliance with Table 1; the general requirements of 5.1 and A999/A999M also apply. This review covers only the chemical-composition table. This is an austenitic stainless-steel pipe standard and does not establish cold-heading wire suitability or full product acceptance. Note C: the nitrogen test method is agreed between buyer and seller.

    Combined limits

    Combined-element limits
    • Requirement
      Nb≥10×(C)
      Element coefficient
      Nb
      1
      C
      -10
      Lower limit
      0
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