Specifications: diameter: 320 to 127 mm thickness: 0.4 to 12.7 mm Length: 6 m above, and, in accordance with customer demand, supply and other specifications of steel pipe

DIN2391 EN10305 DIN17175 steel pipe

Standard DIN2391 EN10305 DIN17175
Material E215 E235 E355 ST35 ST37.4 ST45 ST52
Heat treatment NBK
Specification Outer diameter(mm) Wall Thickness(mm)
4-76mm 0.5-8mm
Length 3-12m, random or fixed length
Technology High precision cold drawn/cold rolled
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Product Standards:
European Standard    
Standard Specification Range Steel Grade
EN10305 OD:4~76*WT:0.5-8 E215 E235 E355
German Standards
Standard Specification Range Steel Grade
DIN2391 OD:4~76*WT:0.5-8 ST35 ST37.4 ST45 ST52
DIN17175 OD:4~76*WT:0.5-8 ST35 ST45 17Mn4 
19Mn5 15Mo3 13CrMo44


Tolerance table of Steel tube
Name Scope
GB series
DIN series
Enterprise internal control 
Special high-precision
4-30 ±0.1 ±0.08 ±0.05 ±0.03
31-40 ±0.15 ±0.15 ±0.05 ±0.03
41-50 ±0.2 ±0.2 ±0.08 ±0.03
51-60 ±0.25 ±0.25 ±0.08 ±0.03
0.5-7 ±10% ±10% ±10% ±10%


To be used in hydraulic system, automobile,nested card connector(pipe joints) with matching


DIN2391 EN10305 DIN17175 steel pipe


(1) Product Name : Seamless Carbon Steel Pipe
(2)  Brand : ZGL (Manufacturer )
(3) Specification: OD :3/8"-20" WT:SCH5-XXS
(4) Standard :


API 5L, X42, X52,  and 5CT ,J55 ,K55
SAE1020 ,SAE1045
JIS G4051, S20C ,S45C, JIS G3454, JIS 3454 ,STPG42
DIN 17175 ST 45-8, ST 52
(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


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