ASTM A213 TP304
UNS S30400ASTM A213 TP304 material
Key Engineering Metrics
Instant specifications summary for ASTM A213 TP304
General Specifications & Standard Data
ASTM A213Minimum Design Metal Temperature rules for impact testing exemption under ASME B31.3 paragraph 323.2.2.
Mechanical Properties
Room Temp (20°C / 68°F)Allowable Stress Data (ASME B31.3 Table A-1)
asme-b31-3Allowable Stress vs Temperature
ASME B31.3 / BPVC Section II Part D Reference Curve
| Temperature (°C) | Allowable Stress (MPa) | % of Room Temp Rating |
|---|---|---|
| 38 | 137.9 | 100% |
| 100 | 137.9 | 100% |
| 150 | 137.9 | 100% |
| 200 | 131.0 | 95% |
| 250 | 122.0 | 88% |
| 300 | 115.0 | 83% |
| 350 | 112.0 | 81% |
| 400 | 108.0 | 78% |
| 450 | 105.0 | 76% |
| 500 | 102.0 | 74% |
Chemical Composition (% Weight)
Heat & Product Analysis🛡️ Service Compatibility
Retains high impact toughness down to -196°C (-320°F). Standard for LNG & liquid nitrogen.
Superior resistance to nitric acid, organic acids, and pharmaceutical process streams.
Zero rust/iron contamination for DI water, pure steam, and food/beverage lines.
NACE MR0175 compliant for low-severity sour service without PWHT.
High susceptibility to pitting and Chloride Stress Corrosion Cracking (CSCC) >60°C.
🔥 Welding & Heat Treatment
None required (ambient ≥ 10°C). Interpass temp < 150°C (300°F).
PWHT is not recommended or required; causes chromium carbide sensitization.
Exempt down to -196°C (-320°F) per ASME B31.3 Table 323.2.2.
Material property data provided is for preliminary engineering reference. Always verify properties against the latest ASME BPVC Section II, ASTM material specification, and Material Test Report (MTR/MTC).