Place of Origin: | Zhejiang |
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Location: | Suzhou, Jiangsu, China (Mainland) |
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Business Type: | Manufacturer |
Main Products: | Carbon Steel Tube , Seamless Carbon Steel Tube, Carbon Steel Hydraulic Tubing |
Cold Drawing Carbon Steel Tube E215 , Precision Steel Tube EN 10305-1/4
1.Precision steel tube-carbon steel are made using the cold drawing process. Precision tubes are made from carbon steel from quality Bao Steel,XingCheng Steel,and HuaiSteel.
2. The tubes are high precision in tolerance,excellent surface brightness,no oxidization on the outer and inner walls after heat treatment,high cleanness of inside wall.
3. No deformation after cold bending,no crack after flaring and flattening.
Tolerance Table Of Steel Tube
NAME |
SCOPE(mm) |
GB (mm) |
DIN (mm) |
Enterprise control(mm) |
Special high-precision(mm) |
Out Diameter |
4-30 |
±0.1 |
±0.08 |
±0.05 |
±0.03 |
31-40 |
±0.15 |
±0.15 |
±0.05 |
±0.03 |
|
41-50 |
±0.20 |
±0.20 |
±0.08 |
±0.03 |
|
51-60 |
±0.25 |
±0.25 |
±0.08 |
±0.03 |
|
Wall thickness |
0.5-7 |
±10%,Min±0.12 |
±10% |
±10%,Min±0.05 |
±10%,Min±0.03 |
Steel grades for precision steel tube-carbon steel
Standard |
Material |
EN10305-1 |
E215, E235, E255, E355,C45E, 30GrMo |
DIN2391 |
ST35,ST45,ST52, ST37.4 |
DIN1630 |
ST37.4,ST44.4,ST52.4 |
BS6323/4 |
CFS3,CFS4,CFS5,CFS8 |
ASTMA519 |
SAE1010,SAE1020,SAE1045 |
JISG3445 |
STKM11A,STKM13A |
SAEJ524 |
SAE1010 |
Delivery condition and heat treatment processing of precision steel tube-carbon steel
Delivery Condition |
Heat treatment process |
+C |
Cold drawn/hard.After the last cold forming,no heat treatment. |
+LC |
Cold drawn/soft.After the last heat treatment follows the cold drawing there is a light finishing
|