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  1. ASTM A234 範圍. 1.1 本規範涵蓋 ASME B16.9、B16.11、MSS-SP-79、MSS-SP-83 和 MSS-SP-95 最新修訂版涵蓋的無縫和焊接結構的鍛造碳鋼和合金鋼配件。. 這些管件用於壓力管道和壓力容器製造,以在中溫和高溫下使用。. 與這些 ASME 和 MSS 標準不同的配件應按照規範 A 58/A 960M 的 ...

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  4. ASTM A234 Steel Pipe Fittings Chemical Composition and Mechanical Properties ASTM 234 Grade and Marking Symbol (ASTM A234 steel pipe fittings) Chemical Composition, % C Mn P S Si Cr Mo WPB 0.30 max 0.29-1.06 0.05 0.058 0.10 min 0.40 max 0.15

  5. ASTM A234 (ASME SA234) is standard specification of carbon and alloy steel pipe fittings for moderate and high temperature services. Common use material are ASTM A234 Grade WPB, WPC, WP5, WP9, WP11, WP22 and WP91. It covers the butt-welded pipe fittings of Elbow, Tee, Reducer, Cap and Cross, and some socket welding, threaded pipe fittings.

  6. ASTM A234 alloy steel pipe fittings includes alloy steel elbows in long and short radius, alloy steel eccentric & concentric reducer, alloy steel caps & crosses, alloy steel couplings, alloy steel tees, alloy steel nipples, alloy steel caps and etc more forms. It has seamless, welded and fabricated types.

  7. SPECIFICATION FOR PIPING FITTINGS OF WROUGHT CARBON STEEL AND ALLOY STEEL FOR MODERATE AND HIGH-TEMPERATURE SERVICE. This specification covers wrought carbon steel and alloy steel fittings of seamless and welded construction covered by the latest revision of ASME B16.9, B16.11, MSS-SP-79, MSS-SP-83, and MSS-SP-95.

  8. two or more of these operations. The forming procedure shall be so applied that it will not produce injurious imperfections in the fittings. 6.2 Fittings NPS-4 and under may be machined from hot-forged or rolled, cold-sized, and straightened bar stock having the