Huijie Steel Pipe Manufacturing high precision CDW/CDS/DOM Steel Tubing for wide application in the automotive industry,for Shock absorber,tranmission shaft,steering gear,gas spring,rubber bush inner and outer tubes,hydraulic line pipes,etc
Size: O.D. 6--108mm, W.T. 0.8-12mm
Production standard: GB/T 3639, ASTM A519/A513, DIN 2391, DIN2391/C, EN 10305-1, EN 10305-4.
GOST9567 JIS G3445/G3446,BS6323 etc.
Normal Material: 10#.20#.35#.45#.4130.4140.ST30Al.ST35.ST45.ST52.E215.E235.E355 STKM11,12,13,14.
Delivery heat-treatment Status:
a) Cold drawn/ hard: (+C). b) Cold drawn/ soft:( +LC). c) Cold drawn and stress released: (+SR).
d) Annealed:( +A). e) Normalized: (+N).
Astm A519,Astm Steel Tubes,Automotive Steel Tubes,Seamless Precision Automotive Tubes Ningbo Huijie Steel Pipe Manufacturing Co.,Ltd , https://www.hjbearingtube.com