钢厂按照 ASTM A312 TP304H 的要求生产制造 PIPES,并按 ASTM A312 TP304H 的16. Certification 要求出具证书。管件制造厂向钢厂采购 ASTM A312 TP304H 管子按 ASME B16.9 的要求加工成管件。他按 ASTM A403/A403M 13. Test Reports 要求出具试验报告。
A-312/A-312M TABLE 1 Chemical Requirements
UNS Composition, %
Grade Designation Carbon Manganese Phosphorus Sulfur Silicon Chromium Nickel Molybdenum Titanium Nitrogen Other
TP304H S30409 0.04–0.10 2.00 0.045 0.030 1.00 18.0–20.0 8.0–11.0 . . . . . . . . . . . .
A403/A403M
TABLE 2 CHEMICAL REQUIREMENTS
Grade UNS Composition, % Grade WP Grade CR Designation C Mn P S Si Ni Cr Mo Ti N2 Others
WP 304H CR 304H S30409 0.04–0.10 2.00 0.045 0.030 1.00 8.0–11.0 18.0–20.0 . . . . . . . . . . . .
13. Test Reports
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13.1.2 Heat number or serial number traceable to a heat number,13.1.3 Chemical analyses for all starting materials,
13.1.4 Mechanical propertiesof all starting materials,
A-312/A-312M TP304H 和 A403/A403M WP 304H 有相同的 UNS Designation ,相同的化学成分和力学性能。
A-312/A-312M TP304H 就是A403/A403M WP 304H 的 starting materials。
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