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API 5L Steel Pipe Line

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API SPEC 5L Steel Pipe Line 
Name: GB/T 3639 Cold drawn or cold rolled precision seamless steel tubes 
GB/T 8713 inside precision seamless tubes for hydraulic pressure and pneumatic services 
Application: For Atuo usd; For machinery use; /Oil cylinder tube; /Motorcycle shock reducer steel tubes; /Auto shock reducer inner cylinder 
Size(mm): 0. D.: 6.0 TO 219.0 W. T: 1 TO 30 L: Max 12000 
API SPEC 5L Steel Pipe Line

 

API 5L Steel Pipe Line
OD(mm) Wall Thickness Unit(mm)
2 2.5 3 3.5 4 4.5 5 6 6.5-7 7.5-8 8.5-9 9.5-10 11 12
Φ 25-Φ 28 T T T T T T
Φ 32 T T T T T T
Φ 34-Φ 36 T T T T T T
Φ 38 T T T T T T
Φ 40 T T T T T
Φ 42 T T T T T
Φ 45 T T T T T T
Φ 48-Φ 60 T T T T T T T
Φ 63.5 T T T T T T T
Φ 68-Φ 73 T T T T T T
Φ 76 T T T T T T T T T T
Φ 80 T T T T T T T T T T
Φ 83 T T T T T T T T T T
Φ 89 T T T T T T T T T T
Φ 95 T T T T T T T T T T
Φ 102 T T T T T T T T T T
Φ 108 T T T T T T T T T T
Φ 114 T T T T T T T T T
Φ 121 T T T T T T T T T
Φ 127 T T T T T T T T T
Φ 133 T T T T T T T T T
Φ 140 T T T T T T T T
Φ 146 T T T T T T T T
Φ 152 T T T T T T T T
Φ 159 T T T T T T T T
Φ 168 T T T T T T T T
 
Seamless Cold Drawn Low Carbon Steel Heat Exchanger And Conderser Tubes
Application: For tubular heat exchangers, condensers, and similar heat transfer apparatus.
Size(mm): O. D.: 6.0~114.0 W. T.: 1~15 L: max 12000
Composition (%)

Chemical Composition
C Mn P≤ S≤ Si≤
0.06-0.18 0.27-0.63 0.035 0.035 0.25

OD In (mm)
+ - WT In(mm) + -
< 1(25.4) 0.10 0.10 ≤ 1.1/2(38.1) 20% 0
1∼ 1.1/2(25.4∼ 38.1) 0.15 0.15 > 1.1/2(38.1) 22% 0
> 1.1/2∼ < 2(38.1∼ 50.8) 0.20 0.20
2∼ < 2.1/2(50.8∼ 63.5) 0.25 0.25
2.1/2∼ < 3(63.5∼ 76.2) 0.30 0.30
3∼ 4(76.2∼ 101.6) 0.38 0.38
> 4∼ 7.1/2(101.6∼ 190.5) 0.38 0.64
> 7.1/2∼ 9(190.5∼ 228.6) 0.38 1.14
 
Seamless Cold Drawn Low Carbon Steel Heat Exchanger And Conderser Tubes
Application: For tubular heat exchangers, condensers, and similar heat transfer apparatus.
Size(mm): O. D.: 6.0~114.0 W. T.: 1~15 L: max 12000
Composition (%)

Chemical Composition
C Mn P≤ S≤ Si≤
0.06-0.18 0.27-0.63 0.035 0.035 0.25

OD In (mm)
+ - WT In(mm) + -
< 1(25.4) 0.10 0.10 ≤ 1.1/2(38.1) 20% 0
1∼ 1.1/2(25.4∼ 38.1) 0.15 0.15 > 1.1/2(38.1) 22% 0
> 1.1/2∼ < 2(38.1∼ 50.8) 0.20 0.20  
2∼ < 2.1/2(50.8∼ 63.5) 0.25 0.25  
2.1/2∼ < 3(63.5∼ 76.2) 0.30 0.30  
3∼ 4(76.2∼ 101.6) 0.38 0.38  
> 4∼ 7.1/2(101.6∼ 190.5) 0.38 0.64  
> 7.1/2∼ 9(190.5∼ 228.6) 0.38 1.14  
If you' re interested in our products or have any questions, please let us know. Don' t hesitate to contact us!
 
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We also establish an effective complete quality control system. In 2003, our company obtained the certificate of ISO9001 Quality System Authentification!