ASTM B363 WPT2
UNS R50400ASTM B363 WPT2 material
Key Engineering Metrics
Instant specifications summary for ASTM B363 WPT2
General Specifications & Standard Data
ASTM B363Minimum 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 | 98.6 | 100% |
| 100 | 98.6 | 100% |
| 150 | 86.0 | 87% |
| 200 | 72.0 | 73% |
| 250 | 60.0 | 61% |
| 300 | 50.0 | 51% |
Chemical Composition (% Weight)
Heat & Product Analysis🛡️ Service Compatibility
High tensile strength for ASME B16.5 flanges up to 450°C.
Provides excellent atmospheric & chemical corrosion resistance.
🔥 Welding & Heat Treatment
10°C min; preheat required for heavy wall thickness per ASME B31.3.
Required if nominal wall thickness t > 19mm (0.75 in) per ASME B31.3 Table 331.1.1.
Exempt down to -29°C (-20°F) per B31.3 Fig 323.2.2A. Impact test required if MDMT is lower.
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).