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ASTM美國材料與試驗協(xié)會---管件與法蘭材質(zhì)等級信息等
ASTM:American Society for Testing and Materials
| ASTM A105 | Carbon Steel Forgings for Piping Applications |
| ASTM A182 | Forged or Rolled Alloy Steel Pipe Flanges, Forged Fittings, and Valves and Parts for high Temperature Service |
| ASTM A234 | Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service |
| ASTM A350 | Carbon and Low-Alloy Steel Forgings, Requiring Notch Toughness Testing for Piping Components |
| ASTM A403 | Wrought Austenitic Stainless Steel Piping Fittings |
| ASTM A420 | Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperature Service |
| ASTM A694 | Carbon and Alloy Steel Forgings for Pipe Flanges, Fittings, Valves, and Parts for High-Pressure Transmission Service |
| ASTM A815 | Wrought Ferritic, Ferritic/Austenitic, and Martensitic Stainless Steel Piping Fittings |
| ASTM A860 | Wrought High-Strength Low-Alloy Steel Butt-Welding Fittings |
| ASTM B366 | Factory-Made Wrought Nickel and Nickel Alloy Fittings |
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