■ Carbon Steel Seamless Pipe 碳钢无缝管 
  Description for Carbon Steel Seamless Pipe 碳钢无缝管描述 
  ANSI/ASTM   Chinese Standard & Code
Standard & Code:
  ASTM A106, ASTM A53
  ASTM A333
  GB/T8163-1999, GB3087-1999
  GB5310-1995
Size & Dimension:
  ANSI B36.10
  HG20553-93, SH3405-96
Material:
  A106 GR.B, A53 GR.B
  A333 GR.1,6
  20#, 20G
  Q345E

  Size for Carbon Steel Seamless Pipe 碳钢无缝管尺寸 
NPS OD Wall Thickness (mm)
mm inch mm Sch20 Sch30 Sch40 STD Sch60 Sch80 XS Sch100 Sch120 Sch140 Sch160 XXS
6 1/8 10.3 1.45 1.73 1.73 2.41 2.41
8 1/4 13.7 1.85 2.24 2.24 3.02 3.02
10 3/8 17.1 1.85 2.31 2.31 3.20 3.20
15 1/2 21.3 2.41 2.77 2.77 3.73 3.73 4.78 7.47
20 3/4 26.7 2.41 2.87 2.87 3.91 3.91 5.56 7.82
25 1 33.4 2.90 3.38 3.38 4.55 4.55 6.35 9.09
32 1 1/4 42.2 2.97 3.56 3.56 4.85 4.85 6.35 9.70
40 1 1/2 48.3 3.18 3.68 3.68 5.08 5.08 7.14 10.15
50 2 60.3 3.18 3.91 3.91 5.54 5.54 8.74 11.07
65 2 1/2 73.0 4.78 5.16 5.16 7.01 7.01 9.53 14.02
80 3 88.9 4.78 5.49 5.49 7.62 7.62 11.13 15.24
100 4 114.3 4.78 6.02 6.02 8.56 8.56 11.13 13.49 17.12
125 5 141.3 6.55 6.55 9.53 9.53
150 6 168.3 7.11 7.11 10.97 10.97 14.27 18.26 21.95
200 8 219.1 6.35 7.04 8.18 8.18 10.31 12.70 12.70 15.09 18.26 20.62 23.01 22.23
250 10 273.0 6.35 7.80 9.27 9.27 12.70 15.09 12.70 18.26 21.44 25.40 28.58 25.40
300 12 323.8 6.35 8.38 10.31 9.53 14.27 17.48 12.70 21.44 25.40 28.58 33.32 25.40
350 14 355.6 7.92 9.53 11.13 9.53 15.09 19.05 12.70 23.83 27.79 31.75 35.71
400 16 406.4 7.92 9.53 12.70 9.53 16.66 21.44 12.70 26.19 30.96 36.53 40.49
450 18 457.0 7.92 11.13 14.27 9.53 19.05 23.83 12.70 29.36 34.93 39.67 45.24
500 20 508.0 9.53 12.70 15.09 9.53 20.62 26.19 12.70 32.54 38.10 44.45 50.01
550 22 559.0 9.53 12.70 9.53 22.23 28.58 12.70 34.93 41.28 47.63 53.98
600 24 610.0 9.53 14.27 17.48 9.53 24.61 30.96 12.70 38.89 46.02 52.37 59.54
  Notes: Size range available with blue. 说明：蓝色部分为可供规格  

  Chemical Composition & Mechanical Properties of Carbon Steel Seamless Pipe 碳钢无缝管化学成份及机械性能 
Spec. No.
Grade
Chemical Compositions（max%）
C Mn P S Si Cr Cu Mo Ni V Nb Ti Al
Mechanical Properties (min)
Tensile
(MPa)		 Yield
(MPa)		 Elongation
%		 Impact
Akv(J)
  A53 - Black and Hot-Dipped Zinc-Coated Welded and Seamless Steel Pipe
  B 0.30 1.20 0.05 0.045 415 240
  A106 - Seamless Carbon Steel Pipe for High-Temperature Service
  B 0.30 0.29-
1.06		 0.035 0.035 ≥0.10 0.40 0.40 0.15 0.4 0.08 415 240 30
  GB/T8163-1999 - Seamless Steel Tubes for Liquid Service
  GB3087-1999 - Seamless Steel Tubes and Pipes for Low & Medium Pressure Boiler
  20# 0.17-
0.24		 0.35-
0.65		 0.035 0.035 0.17-
0.37		 0.25 0.25 0.25 410-550 245 20
  GB5310-1995 - Seamless Steel Tubes and Pipes for high Pressure Boiler
  20G 0.17-
0.24		 0.35-
0.65		 0.030 0.030 0.17-
0.37		 0.25 0.20 0.15 0.25 0.08 410-550 245 24 35
  A333 - Seamless and Welded Steel Pipe for Low Temperature Service
  1 0.30 0.40-
1.06		 0.025 0.025 380 205 35 18
  6 0.30 0.29-
1.06		 0.025 0.025 ≥0.10 415 240 30 18
  GB/T8163-1999 - Seamless Steel Tubes for Liquid Service
  Q345E 0.18 1.00-
1.60		 0.025 0.025 0.55 0.02-
0.15		 0.015-
0.060		 0.02-
0.20		 ≥
0.015		 490-655 325 21 27
■ Alloy Steel Seamless Pipe 合金钢无缝管 
  Description for Alloy Steel Seamless Pipe 合金钢无缝管描述 
  ANSI/ASTM   Chinese Standard & Code
Standard & Code:
  ASTM A335
  GB5310-1995
  GB9948-1988
  GB6749-2000
Size & Dimension:
  ANSI B36.10
  HG20553-93, SH3405-96
Material:
  A335 GR.P12
  A335 GR.P11
  A335 GR.P22
  A335 GR.P5
  15CrMoG
  12Cr1MoVG
  12Cr2MoG
  1Cr5Mo

  Size for Alloy Steel Seamless Pipe 合金钢无缝管尺寸 
NPS OD Wall Thickness (mm)
mm inch mm Sch20 Sch30 Sch40 STD Sch60 Sch80 XS Sch100 Sch120 Sch140 Sch160 XXS
6 1/8 10.3 1.45 1.73 1.73 2.41 2.41
8 1/4 13.7 1.85 2.24 2.24 3.02 3.02
10 3/8 17.1 1.85 2.31 2.31 3.20 3.20
15 1/2 21.3 2.41 2.77 2.77