六角头双丝头 Hexagonal Nipples 公称通径 Nominal Pipe Size DN 6 8 8×6 10 10×8 15 15×10 15×8 20 20×15 20×10 25 25×20 25×15 32 32×25 32×20 32×15 40 40×32 40×25 40×20 40×15 NPS 1/8 1/4 1/4×1/8 3/8 3/8×1/4 1/2 1/2×3/8 1/2×1/4 3-4 3/4×1/2 3/4×3/8 1 1×3/4 1×1/2 11/4 11/4×1 11/4×3/4 11/4×1/2 11/2 11/2×11/4 11/2×1 11/2×3/4 11/2×1/2 C 6 6 6 8 8 8 8 8 10 10 10 10 10 10 12 12 12 12 16 16 16 16 16 E1 10 15 15 16 16 20 20 20 21 21 21 25 25 25 25 25 25 25 26 26 26 26 26 E2 --- --- 10 --- 15 --- 16 15 --- 20 16 --- 21 20 --- 25 21 20` --- 25 25 21 20 W 26 36 31 40 39 48 44 43 52 51 47 60 56 55 62 62 58 57 68 67 67 63 62 尺寸 Size D sch80 5 7 5 10 7 13 10 7 18 13 10 23 18 13 31 23 18 13 36 31 23 18 13 sch160 4 6 4 8 6 10 8 6 14 10 8 19 14 10 28 19 14 10 32 28 19 14 10 50 50×40 50×32 50×25 50×20 50×15 65 65×50 65×40 65×32 65×25 65×20 80 80×65 80×50 80×40 80×32 80×25 2 2×11/2 2×11/4 2×1 2×3/4 2×1/2 21/2 21/2×2 21/2×11/2 21/2×11/4 21/2×1 21/2×3/4 3 3×21/2 3×2 3×11/2 3×11/4 3×1 18 18 18 18 18 18 20 20 20 20 20 20 20 20 20 20 20 20 27 27 27 27 27 27 38 38 38 38 38 38 40 40 40 40 40 40 --- 26 25 25 21 20 --- 27 26 25 25 21 --- 38 27 26 25 25 72 71 70 70 66 65 96 85 84 83 83 79 100 98 87 86 85 85 47 36 31 23 18 13 57 47 36 31 23 18 70 57 47 36 31 23 40 32 28 19 14 10 51 40 32 28 19 14 63 51 40 32 28 19 ·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. ·The standards and codes of the fittings is conical threaded NPT angle 60°of GB/T 12716(ANSI/ASME B1.20.1),and if requiring other types of thread,please indicate them in the purchased order.

螺纹短节 Nipples 公称通径 Nominal Pipe Size DN 6 8 10 15 20 25 32 40 50 65 80 100 NPS 1/8 1/4 3/8 1/2 3/4 1 11/4 1/2 2 21/2 3 4 管子外径 Outside Diameter of Pipe D 10.3 13.7 17.1 21.3 26.7 33.4 42.2 48.3 60.3 73.0 88.9 114.3 螺纹长度 Length of Thread Min L2 min 9.5 11.0 12.5 14.5 16.0 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. 75、100、150 SCH80、SCH160 长度 End to End L 管子壁厚 Wall Thickness of Pipe T

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 6-8 NPS 1/8-1/4 d +0 -0.8 +0 -0.8 +0 -1.5 +0 -2.5 六角头双丝头 Hexagonal Nipples C ±1 E1、E2 ±1.5 螺纹短节 Nipples L ±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 Chemical Composition%,max σb Mn Cr Ni Mo P S Other MPa 力学性能 Mechanical requirements σ5 δ5 MPa % HB max min min min 245 25 156 Other 20 20 20 20 20 碳钢 Carbon Steel 20G 20G 20g 20R Q235A Q235B GB/T699 GB 3087 GB/T8163 GB 9948 GB 711 GB 5310 GB 6479 GB 713 GB 6654 GB 3724 GB 3724 棒BAR 管PIPE 管PIPE 管PIPE 板PLATE 管PIPE 管PIPE 板PLATE 板PLATE 板PLATE 板PLATE 0.17-0.23 0.17-0.37 0.35-0.65 0.25 0.17-0.23 0.17-0.37 0.35-0.65 0.25 0.17-0.23 0.17-0.37 0.35-0.65 0.25 0.17-0.24 0.17-0.37 0.35-0.65 0.25 0.17-0.24 0.17-0.37 0.35-0.65 0.25 0.17-0.24 0.17-0.37 0.35-0.65 0.25 0.17-0.24 0.17-0.37 0.35-0.65 --- 0.20 0.20 0.14-0.22 0.12-0.20 0.15-0.30 0.50-0.90 --- 0.15-0.30 0.40-0.90 --- 0.30 0.30 0.30-0.65 --- 0.30-0.70 --- 0.30 0.30 0.30 0.25 0.25 --- 0.035 0.035 --- 0.035 0.035 --- 0.035 0.035 --- 0.035 0.035 --- 0.035 0.040 Cu:0.25 Cu:0.25 Cu:0.25 Cu:0.25 Cu:0.25 410 ψ%:55 --- --- Akv J:39 --- Akv J:35 ak J/cm 2:49 410-550 245 20 --- 410-550 245 20 --- 410-550 245 21 --- 410 --- 28 --- 0.25 0.15 0.030 0.030 Cu:0.20;V:0.08 410-550 245 24 --- --- --- --- --- --- --- 0.035 0.035 --- 0.035 0.035 --- 0.035 0.030 --- 0.045 0.050 --- 0.045 0.045 --- --- --- --- --- 410-550 245 24 --- 400-530 245 26 --- Akv J:27;aku J/cm2:29 400-520 245 25 --- 375-500 235 26 --- 375-500 235 26 --- Akv J:31 --- Akv J:27