API 5L-B Carbon Seamless Pipe 
1:ASTM A106/A53-B API5L-B 
2:OD:20-114mm WT:2-14mm 
3:Certificates:ISO & API 
4:Cold drawed

API 5L-B Carbon Seamless Pipe

(1) Product Name : Seamless Carbon Steel Pipe 
(2)  Brand : Zhongzheng Steel Pipe (Manufacturer ) 
(3) Specification: OD :3/8”-20” WT:SCH5-XXS 
(4) Standard :  ASTM A106-B ,ASTM A53-B, API 5L-B

API 5L, X42, X52,  and 5CT ,J55 ,K55
SAE1020 ,SAE1045 
DIN 17175 ST 35.8,ST37,ST45 , DIN 2391 ST52 (16Mn)

(5) Tolerate:   OD :+1% / -1%  WT: +12.5% / -10% 
(6) Technics : hot rolled .or cold rolled 
(7) Packing : paint,bundles or for the clients’ needs

(8) Application field:Transportation of oil,gas or fluid,Construction,Electricity,Machine building industy,Chemical industy,Petroleum,Traffic.

Standard

grade

chemical composition(%)

 

C

Si

Mn

P

S

Cu

Ni

Mo

Cr

DIN 17175

ST37

ST35.8 

0.07~0.14

0.17~0.37

0.35~0.65

≤0.035

≤0.035

≤0.25

≤0.25

/

≤0.15

ASTM A106

ASTM A53

API  5L

B

0.17~0.24

0.17~0.37

0.35~0.65

≤0.035

≤0.035

≤0.25

≤0.25

/

≤0.25

DIN 17175

ST42

ST45 

0.42~0.50

0.17~0.37

0.50~0.80

≤0.035

≤0.035

≤0.25

≤0.25

/

≤0.25

DIN 1629

Q345

ST52

0.12~0.20

0.20~0.55

1.20~1.60

≤0.035

≤0.035

≤0.25

≤0.25

/

≤0.25

 API 5L-B Carbon Seamless Pipe

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