Seamless steel pipes
Stainless steel pipes
Alloy pipes
Cast steel pipes
   
 


 

　
Seamless structure10#、20#、35#、45# GB8162-1999、Fluid controlGB8163-1999
3 5 6 8 10 12×0.5 1 2 2.5 3 127 133 140 146 152×4.5 5 6 8 10 12 14 16 18 35
14 16 18 20 22×0.5 1 1.5 2 2.5 3 159 168 180 194 203×5 6 8 10 12 16 18 20 22-45
25 28 30 32 38×1.5 2 3 4 5 6 219 245 273 299 325×7 8 9 10 12 16 18 20 22 25-60
40 42 45　48 50×2 2.5 3 3.4 4 5 6 8 10 12 377 402 406 426 450×8 10 12 14 18 20 25 28 30-70
51 57 60 63.5 68×3 4 5 6 8 10 12 14 480 500 508 530 580×8 10 12 16 20 25 30 35 40-75
70 73 76 80 93 89×3.5 4 4.5 5 6 8 10 12 14 16 18 600 610 630 660 680×10 12 14 18 20 25 30 35 40-80
95 102 108 114 121×4 4.5 5 7 10 12 14 16 18 22  
　　　Exclusive possession of chemical fertilizers, petroleumcracking tube, ship tube GB6479-86 GB9948-88 GB5312-85
10 12 14 17 18 22 25×1 1.5 2 2.5 3 159 168 180 194 203×6 8 10 12 16 20 25 30 35-40
27 32 34 38 42 48 57×2.5 3 3.5 4 5 6 8 219 273 325 351 377×8 10 12 16 20 25 28 35 40 45 50
69 76 89 102 108 114×3.5 4 5 6 8 10 16 405 426 480 530 610 630×10 16 20 25 30 35 40-70
121 127 133 140 152×6 8 10 12 16 18 20 22 28-40  
　　　
Low, high-pressure boiler tubes20G、GB3087-1999、GB5310-95
18 19 20 22 25×2 2.5 3 4 5 180 194 219 245×6 8 10 12 16 18 20 25 30 35 40-45
29 30 32 35 38×2 2.5 3 3.5 4 5 273 299×8 10 12 18 20 25 28 30 35 40-60
40 42 45 48 51×2.5 3 3.5 4 4.5 5 6 325 377×8 10 12 18 20 25 28 30 35 40-60
57 60 63.5 70 76×3 3.5 4 5 6 8 10 426 450 480 530×10 12 14 18 20 25 30 35 40-60
83 89 102 108 114×3.5 4 5 6 8 10 12 14 500 580 600 610×10 12 16 20 25 30 35 40 45 50-80
121 127 133 140×4 4.5 6 8 10 12 14 16 18 20 22-30 630 660 680×12 16 18 20 25 30 35 40 45 50 55-80
146 152 159 168×4 4.5 6 8 10 12 14 16 18 20 28-40  
　　　
Alloy Pipe16Mn、27SiMn、15CrMo、35CrMo、Cr5Mn、12Cr1MoV、10CrMo910
16 18 20 22 25 28×2.5 3 4 5 6 114 127 140 150 180×4.5 5 6 8 10 12 14 16 18 20-40
32 38 42 45 51 63×2.5 3 4 5 6 8 10 12 194 203 219 273 299×8 10 12 14 18 20 22 25 30 35-50
54 60 70 76 76 80×4 5 6 8 10 12 14 16 18 20 325 377 480 508 530×8 10 14 16 20 25 28 32 35-60
83 89 102 108 121×4.5 5 6 8 10 12 14 16 18 20-40  
　　　
Special thick-walled seamless tube Large Diameter
610 630 660 680 700×20 28 30 35 45 60 75 710 720 750 760×20 25 30 40 60 70 75
780 800 820 850×25 30 45 50 60 75 90 860 960 1020 1270 1300×35 40 60 80 100 150