Jiangsu Hongbao Group Co., Ltd. |
Verified Suppliers
|
|
Welded drawn
EN 10305-2
(DIN 2393)
E195 (1.0034), E235 (1.0308), E275 (1.0225), E355 (1.0580)
Case hardening / heat treatable steel: C15 (1.0401), C35 (1.0501), 20Mn5 (1.1133)
Boron-alloyed steel: 22MnB5 (1.5528), 26MnB5, 30MnB5 (1.5531), 34MnB5, BTR 165
High strength, microalloyed fine grained steel: S320 - S800 NC + MC (QStE320 - QStE800 N + TP)
Delivery Condition:
1) +C No heat treatment after the final cold drawing process.
2) +LC After the final heat treatment there is a suitable drawing
pass.
3) +SR After the final cold drawing process there is a stress
relieve heat treatment in a controlled atmosphere.
4) +A After the final cold drawing process the tubes are annealed
in a controlled atmosphere.
5) +N After the final cold drawing operation the tubes are
normalized in a controlled atmosphere.
Steel Grade | Chemical Composition(%) | ||||||
Steel name | Steel number | C max | Si max | Mn | P max | S max | Al min |
E215 | 1.0212 | 0.10 | 0.05 | 0.70 | 0.025 | 0.025 | 0.025 |
E235 | 1.0308 | 0.17 | 0.35 | 1.20 | 0.025 | 0.025 | - |
E355 | 1.0580 | 0.22 | 0.55 | 1.60 | 0.025 | 0.025 | - |
Application: automotive industry, machine and equipment building
Size(mm): O.D.:6.0-224.0 W.T.:1-15 L:max 12000
Delivery State: + C (BK drawn for shine/hard)
+ N (NBK normalized)
Process:
The cold rolled welded tube is produced by drawing ERW (electric resistance welded tube).During this process the sizing (wall thickness, inside and outside diameter), as well as weld integrity and surface finish is closely controlled to produce tube of the required size and mechanical property characteristics.
Tube Finishing Options:
Our tubes can be additionally treated to achieve the exact finishes and ends needed by customers. These are some of the additional operations that can be performed on our tube:Drawing, Heat treatment, Bulging, Swaging, Cutting, Deburring, Vibro cleaning, Threading,De-rusting, Chamfering, Washing.