304LN
9 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 304LN →304LN · 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、2、5
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| C | ≤ 0.03 (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) |
| Cr | 18.0 ~ 20.0 |
| Ni | 8.0 ~ 12.0 |
| N | 0.1 ~ 0.16 |
Applicability and limitations
Based on SAE J405 JUN1998 original Table 1; mass fraction wt%. Note 1: a value without a range or lower limit is a maximum; a dash means unspecified, not zero. Note 5: Cb and Nb denote the same element; verify alloying elements against the corresponding UNS row and additional conditions. Note 4: carbon is generally reported to 0.01%, and low-carbon types to 0.001%; this is reporting precision and does not relax composition limits. Original Table 1 type names may include common names or ASTM-naming footnotes; create search aliases only for explicit same-row correspondences, without implying cross-standard equivalence. 1998 is the actual composition basis; the specified newer edition has not been checked, so consistency between editions is not assumed.
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.304LN · 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、2、6
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| C | ≤ 0.03 (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) |
| Cr | 18.0 ~ 20.0 |
| Ni | 8.0 ~ 12.0 |
| N | 0.1 ~ 0.16 |
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.
Combined limits
- Combined-element limits
- 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 verified304LN · 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
Composition
| Element | Composition requirement |
|---|---|
| C | ≤ 0.03 (lower limit not stated) |
| Cr | 18 ~ 20 |
| Mn | ≤ 2 (lower limit not stated) |
| N | 0.1 ~ 0.16 |
| Ni | 8 ~ 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.
304LN · ASME SA-666
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
Composition
| Element | Composition requirement |
|---|---|
| C | ≤ 0.03 (lower limit not stated) |
| Cr | 18 ~ 20 |
| Mn | ≤ 2 (lower limit not stated) |
| N | 0.1 ~ 0.16 |
| Ni | 8 ~ 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.
304LN · 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
Composition
| Element | Composition requirement |
|---|---|
| C | ≤ 0.03 (lower limit not stated) |
| Cr | 18 ~ 20 |
| Mn | ≤ 2 (lower limit not stated) |
| N | 0.1 ~ 0.16 |
| Ni | 8 ~ 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.
304LN · 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
Composition
| Element | Composition requirement |
|---|---|
| C | ≤ 0.03 (lower limit not stated) |
| Cr | 18 ~ 20 |
| Mn | ≤ 2 (lower limit not stated) |
| N | 0.1 ~ 0.16 |
| Ni | 8 ~ 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.
304LN · ASTM A666/A666M-2024
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
Composition
| Element | Composition requirement |
|---|---|
| C | ≤ 0.03 (lower limit not stated) |
| Cr | 18 ~ 20 |
| Mn | ≤ 2 (lower limit not stated) |
| N | 0.1 ~ 0.16 |
| Ni | 8 ~ 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.
304LN · 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
Composition
| Element | Composition requirement |
|---|---|
| C | ≤ 0.03 (lower limit not stated) |
| Cr | 18 ~ 20 |
| Mn | ≤ 2 (lower limit not stated) |
| N | 0.1 ~ 0.16 |
| Ni | 8 ~ 11 |
| 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.
304LN · 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
Composition
| Element | Composition requirement |
|---|---|
| C | ≤ 0.03 (lower limit not stated) |
| Cr | 18 ~ 20 |
| Mn | ≤ 2 (lower limit not stated) |
| N | 0.1 ~ 0.16 |
| Ni | 8 ~ 11 |
| 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.