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Cold finished tube, covering cold drawn steel tube and cold rolled steel tube, is always considered as mechanical tubing or precision tube, due to tight or customized size&tolerance, availability of different delivery conditions, etc.
Our Advantages:
• Hydraulic cold drawing technology means more stability during production.
• Rich manufacturing experience of various cold drawn steel tubes.
• Extensive experience about design of cold drawing dies.
• Availability of various steel grades including carbon steel and alloy steel grades.
Parameters of precision tube or mechanical tube we manufacture:
1. Type: Seamless(CDS), Welded(DOM/CDW)
2. Size range: 10mm(OD)*1mm(W.T)-325mm(OD)*35mm(W.T), including imperial sizes.
3. Typical steel grades: various carbon steel and alloy steel:
Seamless Tube(CDS) | ASTM A519: | SAE 1010, 1020, 1026, 1045, 1518, 1524, 1541, 4130, 4140, 4145, 4340 |
EN 10305-1: | E195, E235, E355, C45E, 42CrMo4 | |
DIN 2391-2: | ST35, ST45, ST52 | |
GB/T 3639: | 10#, 20#, 45#, 45#, 27SiMn, Q345B, | |
Welded Tube (CDW Tube) | ASTM A512/A513: | 1010,1020,1524 |
EN 10305-2: | E195, E235, E275, E355 | |
DIN 2393-2: | ST34.2, ST37.2, ST44.2, ST52.3 |
4. Delivery Condition:
+C | +LC | +SR | +A | +N | Q+T |
BK | BKW | BKS | GBK | NBK | Q+T |
Cold drawn(hard) | Cold drawn(Soft) | Stress relieved | Annealed | Normalized | Quenched+Tempered |
| Precision Tube | Mechanical Tube | |
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| Cold Drawn Welded Tube | Cold Rolled Steel Tube | |
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