|Place of Origin:||China|
|Certification:||TS16949, ISO9001, OHSAS18001 etc.|
|Minimum Order Quantity:||1 ton|
|Packaging Details:||Seaworthy Wooden box, customized Packing|
|Delivery Time:||30 Days|
|Supply Ability:||60000 MT per Year|
|Shape:||Round||Application:||Automotive Part, Hydraulic System, High-precsion Machining. Etc.|
|Delivery Condition:||+C,+LC，+SR，+N，+A||Standard:||DIN2391, DIN2445|
|Certificate::||TS16949,DNV,PED,ISO||Type::||Welded Or Seamless|
Round Steel Pipe DIN2391 DIN2445 St37.4 High Precision Seamless Steel Tubes
Tensile strength: 340-480mpa;
Yield strength: ≥235Mpa;
|Outer Diameter Range:||4-120mm|
|Wall Thickness Range:||0.5-15mm|
NBK(+N): After the final cold drawing operation the tubes are normalized in a controlled atmosphere.
GBK(+A): After the final cold drawing process the tubes are annealed in a controlled atmosphere.
BK(+C): No heat treatment after the final cold drawig process.
BKW(+LC): After the final heat treatment there is a suitable drawing pass.
BKS(+SR): After the final cold drawing process there is a stress relieve heat treatment in a controlled atmosphere.
As customer's requirements.
We have our own lab to control the material and the product meet the international standard.