A312 TP304L
1 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 A312 TP304L →A312 TP304L · ASTM A312/A312M-2025
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 text of the historical edition verified
- 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
Estimates are presented separately for each applicable composition condition. Match the actual ordering conditions; ranges must not be combined.
Ordinary Table 1 condition (special footnote conditions not applicable)
Footnote D: outside diameter <12.7mm, or average wall thickness <1.20mm (minimum wall thickness <1.10mm), or both, with multiple drawing passes required
Composition record (conditional branches apply; this is not an unconditional requirement)
| Element | Composition requirement |
|---|---|
| C | ≤ 0.035 (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) |
| Cr | 18.0 ～ 20.0 |
| Ni | 8.0 ～ 13.0 |
Applicability and limitations
Table 1, mass percent; A single value is a maximum; ellipses mean unspecified and are not entered as zero. ; Clause 7.1 requires compliance with Table 1; The general A999/A999M requirements in Clause 5.1 still apply; only the chemical-composition table was checked in this batch. ; Austenitic steel pipe standard; This does not directly establish cold-heading wire suitability or compliance with all product acceptance requirements. ; Footnote C: the nitrogen-analysis method is agreed between purchaser and supplier. ; Footnote D: outside diameter <12.7mm, or average wall thickness <1.20mm (minimum wall thickness <1.10mm), or both, with multiple drawing passes required; The C maximum is 0.04%; the actual product condition must be selected.
Combined limits
- Combined-element limits
Original condition-branch records
Ordinary Table 1 condition (special footnote conditions not applicable)
| Element | Composition requirement |
|---|---|
| C | ≤ 0.035 (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) |
| Cr | 18.0 ～ 20.0 |
| Ni | 8.0 ～ 13.0 |
- Combined limits
- Combined-element limits
Footnote D: outside diameter <12.7mm, or average wall thickness <1.20mm (minimum wall thickness <1.10mm), or both, with multiple drawing passes required
| Element | Composition requirement |
|---|---|
| C | ≤ 0.04 (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) |
| Cr | 18.0 ～ 20.0 |
| Ni | 8.0 ～ 13.0 |
- Combined limits
- Combined-element limits