概述
ASTM A694 高壓傳輸設備用碳素鋼及合金鋼管法蘭、配件、閥門及零件用鍛件.高強度傳輸管線用法蘭主要用於:海洋、石油、天然氣、等高壓管道用法蘭,一般通過氣體有硫化氫(H2S)等有毒氣體,對法蘭的機械性能要求很高,對於ASTM A694 標準鋼材在國內還處於起步階段.
牌號
其牌號有: F42 F46 F48 F50 F52 F56 F60 F65 F70.
牌號 最小屈服強度(0.2%變型),KSI(Mpa) 最小拉伸強度KSI(Mpa) 標距為2英寸或50mm的最小延伸率,%
F42 42(290) 60(415) 20
F46 46(315) 60(415) 20
F48 48(330) 62(425) 20
F50 50(345) 64(440) 20
F52 52(360) 66(455) 20
F56 56(385) 68(470) 20
F60 60(415) 75(515) 20
F65 65(450) 77(530) 20
F70 70(485) 82(565) 18
A694化學成分要求
Carbon, max 0.26 0.265Manganese, max 1.40 1.44
Phosphorus, max 0.025 0.030
Sulfur, max 0.025 0.030
Silicon 0.15–0.35 0.10–0.40
參考檔案
Referenced Documents2.1 In addition to those reference documents listed in Specification A 961, the following list of standards apply to this specification:
2.2 ASTM Standards: A 53/A 53M Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless A 106 Specification for Seamless Carbon Steel Pipe for High-Temperature Service
A 381 Specification for Metal-Arc-Welded Steel Pipe for Use with High-Pressure Transmission Systems
A 707/A 707M Specification for Forged Carbon and Alloy Steel Flanges for Low-Temperature Service
A 788 Specification for Steel Forgings, General Requirements
A 961 Specification for Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for piping Applications
2.3 ASME Standards:
ASME B 16.5 Steel Pipe Flanges and Flanged Fittings
ASME B 16.9 Steel Butt-Welding Fittings
ASME B 16.10 Face-to-Face and End-to-End Dimensions of Ferrous Valves
ASME B 16.11 Forged Steel Fittings, Socket Welding and Threaded
ASME B 16.28 wrought Steel Butt-Welding Short Radius Elbows
ASME B 16.47 Large diameter Steel Flanges
ASME A694 Roc-Master ,shanghai ,jiangxi factroy.
2.4 MSS Standards:
MSS SP-44 Standard for Steel Pipe Line Flanges
MSS SP-75 Specification for High-Test Welding Fittings
MSS SP-95 Swage (d) Nipples and Bull Plugs
MSS SP-97 Integrally Reinforced Forged Branch Outlet Fittings
2.5 API Standard: 5L Specification for Line Pipe.
主要標準有:ASME B16.9,ASME B16.47,ASME B16.5,ASME B16.11,ASME B36.10M,MSS SP-75,MSS SP-97 GB/T12459 ,DIN2632,DIN2576,DIN2527,DIN2653,DIN256,HG20592~HG20605等各種美標,德標,俄標,日標標準!