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25 32 40 50 65 80 100 1 11/4 1/2 2 21/2 3 4 33.4 42.2 48.3 60.3 73.0 88.9 114.3 19.0 20.5 20.5 22.0 27.0 28.5 32.0 ·长度由顾客指定。 ·螺纹型式为GB/T 12716(ANSI/ASME B1.20.1)中的60°圆锥管螺纹NPT；如采用其它型式的螺纹请在订货时注明。 ·Size of end toend shall be required by customers. ·The standards and codes of the fittings is conical threaded NPT angle 60°of GB/T 12716(ANSI/ASME B120.1),and if requiring other types of thread,please indicate them in the purchased order.

六角头双丝头与螺纹短节的极限偏差 Telerances for Hexagonal Nipples and Nipples 公称通径 Nominal Pipe Size DN NPS d 六角头双丝头 Hexagonal Nipples C E1、E2 螺纹短节 Nipples L 6-8 1/8-1/4 +0 -0.8 +0 -0.8 +0 -1.5 +0 -2.5 ±1 ±1.5 ±1.5 10-20 3/8-3/4 ±1 ±1.5 ±1.5 25-50 1-2 ±1 ±2.0 ±2.0 65-100 21/2-4 ±1 ±2.0 中国压力管道管件常用材料 The General Material for Chinese Pressure Piping FIttings 化学成份 钢种 Variety 牌号 Grade 标准号 Standard and Code 类型 Type C Si Mn Cr Ni Mo P S Other Chemical Composition%,max σb MPa 力学性能 Mechanical requirements Other σ5 δ5 MPa % HB min min min max 碳钢 20 GB/T699 棒BAR 0.30 Cu:0.25 ψ%:55 0.17-0.23 0.17-0.37 0.35-0.65 0.25 --- 0.035 0.035 410 245 25 156 Carbon Steel 20 20 20 20 20G 20G GB 3087 GB/T8163 GB 9948 GB 711 GB 5310 GB 6479 管PIPE 管PIPE 管PIPE 板PLATE 管PIPE 管PIPE 0.30 0.30 0.25 0.25 Cu:0.25 Cu:0.25 Cu:0.25 Cu:0.25 --- --- Akv J:39 --- Akv J:35 ak J/cm 2:49 0.17-0.23 0.17-0.37 0.35-0.65 0.25 --- 0.035 0.035 410-550 245 20 --- 0.17-0.23 0.17-0.37 0.35-0.65 0.25 --- 0.035 0.035 410-550 245 20 --- 0.17-0.24 0.17-0.37 0.35-0.65 0.25 --- 0.035 0.035 410-550 245 21 --- 410 0.17-0.24 0.17-0.37 0.35-0.65 0.25 --- 0.035 0.040 --- 28 --- 0.17-0.24 0.17-0.37 0.35-0.65 0.25 0.25 0.15 0.030 0.030 Cu:0.20;V:0.08 410-550 245 24 --- --- --- 0.17-0.24 0.17-0.37 0.35-0.65 --- --- 0.035 0.035 410-550 245 24 --- 20g 20R Q235A Q235B GB 713 GB 6654 GB 3724 GB 3724 板PLATE 0.20 0.20 0.14-0.22 0.12-0.20 0.15-0.30 0.50-0.90 --- --- --- --- --- --- --- --- --- --- 0.035 0.035 400-530 245 26 --- Akv J:27;aku J/cm2:29 Akv J:31 --- Akv J:27 板PLATE 板PLATE 板PLATE 0.15-0.30 0.40-0.90 --- 0.30 0.30 --- 0.035 0.030 400-520 245 25 --- 0.30-0.65 --- --- 0.045 0.050 375-500 235 26 --- 0.30-0.70 --- --- 0.045 0.045 375-500 235 26 ---

1Cr5Mo 1Cr5Mo 1Cr5Mo 1Cr5Mo 12CrMo 12CrMo 12CrMo 12CrMoG 12Cr1MoV 12Cr1MoVG 12Cr1MoVg 12Cr2Mo GB 1221 GB 6479 GB 9948 GB 9948 GB/T3077 GB 6479 GB 9948 GB 5310 GB/T 3077 GB 5310 GB 713 GB 6479 棒BAR 管PIPE 管PIPE 管PIPE 棒BAR 管PIPE 管PIPE 管PIPE 棒BAR 管PIPE 0.15 0.15 0.15 0.15 0.50 0.50 0.50 0.60 0.60 0.60 --- Cu:0.25 Cu:0.25 Cu:0.25 Cu:0.30 Cu:0.25 Cu:0.25 Cu:0.20 590 --- ak J/cm 2:118 Aku J:92 Aku J:92 4.00-6.00 0.60 0.45-0.60 0.035 0.030 390 18 --- 4.00-6.00 --- 0.45-0.60 0.035 0.030 390-590 195 22 --- 390 390 410 4.00-6.00 0.60 0.45-0.60 0.035 0.030 195 22 187 0.50-1.00 0.30-0.60 2.15-2.85 --- 0.45-0.65 0.035 0.030 175 22 179 0.08-0.15 0.17-0.37 0.40-0.70 0.40-0.70 0.30 0.40-0.55 0.035 0.035 265 24 179 ψ%:60;Aku2 J:110 ak J/cm 2:69 Aku J:55 Akv J:35 ψ%:50;Aku2 J:71 Akv J:35 Akv J:31 ak J/cm 2:48 0.08-0.15 0.17-0.37 0.40-0.70 0.40-0.70 --- 0.40-0.55 0.035 0.035 410-560 205 21 --- 0.08-0.15 0.17-0.37 0.40-0.70 0.40-0.70 0.30 0.40-0.55 0.035 0.035 410-560 205 21 156 0.08-0.15 0.17-0.37 0.40-0.70 0.40-0.70 0.30 0.40-0.55 0.030 0.030 410-560 205 21 --- 490 0.08-0.15 0.17-0.37 0.40-0.70 0.90-1.20 0.30 0.25-0.35 0.035 0.035 V:0.15-0.30;Cu:0.30 245 22 179 0.08-0.15 0.17-0.37 0.40-0.70 0.90-1.20 0.30 0.25-0.35 0.030 0.030 V:0.15-0.30;Cu:0.20 470-640 255 21 --- Cu:0.30 Cu:0.25 440 板PLATE 0.08-0.15 0.17-0.37 0.40-0.70 0.90-1.20 0.30 0.25-0.35 0.030 0.030 管PIPE 0.50 245 19 --- 0.08-0.15 0.40-0.70 2.00-2.50 --- 0.90-1.20 0.035 0.035 450-600 280 20 --- 12Cr2MoG 15CrMo 15CrMo 15CrMo 15CrMoG 15CrMog 15CrMoR GB 5310 GB/T3077 GB 6479 GB 9948 GB 5310 GB 713 GB 6654 管PIPE 棒BAR 管PIPE 管PIPE 管PIPE 0.08-0.15 0.50 Cu:0.20 Cu:0.30 Cu:0.25 Cu:0.25 Cu:0.20 Cu:0.30 Cu:0.30 Akv J:35 ψ%:60;Aku2 J:94 ak J/cm 2:59 Aku J:47 Akv J:35 Akv J:31 0.40-0.70 2.00-2.50 0.30 0.90-1.20 0.030 0.030 450-600 280 20 --- 440 0.12-0.18 0.17-0.37 0.40-0.70 0.80-1.10 0.30 0.40-0.55 0.035 0.035 295 22 179 0.12-0.18 0.17-0.37 0.40-0.70 0.80-1.10 --- 0.40-0.55 0.035 0.035 440-640 235 21 --- 0.12-0.18 0.17-0.37 0.40-0.70 0.80-1.10 0.30 0.40-0.55 0.035 0.035 440-640 235 21 170 0.12-0.18 0.17-0.37 0.40-0.70 0.80-1.10 0.30 0.40-0.55 0.030 0.030 440-640 235 21 板PLATE 0.12-0.18 0.15-0.40 0.40-0.70 0.80-1.20 0.30 0.45-0.60 0.030 0.030 450-590 295 19 --- 450-590 板PLATE 0.12-0.18 0.15-0.40 0.40-0.70 0.80-1.20 0.30 0.45-0.60 0.030 0.030 化学成份 钢种 Variety 牌号 Grade 标准号 Standard and Code 类型 Type C Si Mn Cr Ni Mo P S Other Chemical Composition%,max 力学性能 Mechanical requirements Other σb σ5 δ5 MPa MPa % HB min min min max 480 177 40 187 00Cr17Ni14Mo2 0.030 1.00 2.00 16.00-18.00 12.00-15.00 2.00-3.00 0.035 0.030 --- ψ%:60