2021 China New Design Galvanized Steel Square Tube - Cold rolled precision seamless steel pipe – Hongmao
2021 China New Design Galvanized Steel Square Tube - Cold rolled precision seamless steel pipe – Hongmao Detail:
Product Introduction
Precision seamless steel pipe is a kind of high-precision steel pipe processed by cold rolling or cold drawing; full name: cold rolled or cold drawn precision seamless steel pipe. Since the inner and outer walls of precision seamless steel pipes have no oxide layer, withstand high pressure without leakage, high precision, high smoothness, cold bending without deformation, flaring, flattening without cracks, etc., they are mainly used to produce pneumatic or hydraulic components, such as Cylinders or oil cylinders are all made of seamless pipes. The chemical composition of precision seamless steel pipes includes carbon C, silicon Si, manganese Mn, sulfur S, phosphorus P, and chromium Cr.
Specifications
| Outside Diameter | 6mm-140mm |
| Thickness | 0.5-20mm |
| Material | 10#, 20#, 35#, 45#, 16Mn, 30CrMo, 20Cr, 20CrMo,15CrMo, 35CrMo, 42CrMo4, 20Mn, ST35,ST37,E235, ASTM11A, ST45, E255, A106A.B, ST55, CK45, S45C, Q345B, ST52, E355, S355j2, 4130, 4140, 4340, SCM440, SCM415 |
| Surface | Black or bright |
| Standard | GB/T8713, GB/T3639, GB/T8162, GB/T8163, ASTM-A519, EN10305-1, EN10305-4, JIS-G3445, DIN2391, BS6323, GOST8734-75 |
| Processing | Cold rolled /cold drawn |
| Delivery Condition | (1) BK (+C): No heat treatment after last cold forming process; (2) BKW (+LC): After last heat treatment there is a light finishing pass (cold drawing);
(3) BKS (+SR): After the final cold forming process the tubes are stress relieve annealed; (4) GBK (+A): After the final cold forming process the tubes are annealed in a controlled atmosphere; (5) NBK (+N): After the final cold forming process the tubes are annealed above the upper transformation point in a controlled atmosphere. |
| Packing | Woven bag/ wooden or crate carton/ bundle packing/ plain end or vanished as per customer’s request. |
| Delivery time | Normally 10-25 working days |
Product detail pictures:
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By Kama from Finland - 2018.07.26 16:51
The goods we received and the sample sales staff display to us have the same quality, it is really a creditable manufacturer.
By Rebecca from Hongkong - 2018.06.12 16:22
