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Black Painted Hollow Steel Tube ST52.4 , Cold Drawing Precision Steel Pipe
| Place of Origin | Jiangsu, China |
|---|---|
| Brand Name | Hongbao |
| Certification | TS16949,DNV,PED,ISO,TUV,LR |
| Model Number | HBHST-1 |
| Minimum Order Quantity | 1 ton |
| Price | Negotiable |
| Packaging Details | Original packaging according to the customers Export standard package in bundled or as required. |
| Delivery Time | within 50 days |
| Supply Ability | 30000MT per year |
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xProduct Details
| Material | ST37.4,ST52.4,E235,E355,26MnB5,34MnB5 | OD | 6-120mm |
|---|---|---|---|
| Thickness | 0.5-15mm | Shape | Round |
| Processing | Cold Drawn, Cold Rolled | Certificate | TS16949,DNV |
| High Light | hollow steel bar,round hollow tube |
||
Product Description
Seamless Precision Hollow Carbon Steel Tube For Hydraulic Systems And Auto Parts
Description:
Chemical Composition and Mechanical Performance:
| Table 1- Chemical composition | ||||||
| Steel Grade | C% | Si% | Mn% | P% | S% | AL% |
| E215 | ≤0.10 | ≤0.05 | ≤0.7 | ≤0.025 | ≤0.025 | ≥0.025 |
| E235 | ≤0.17 | ≤0.35 | 0.4-1.2 | ≤0.025 | ≤0.025 | |
| E255 | ≤0.21 | ≤0.35 | 0.4-1.1 | ≤0.025 | ≤0.025 | |
| E355 | ≤0.22 | ≤0.55 | ≤1.6 | ≤0.025 | ≤0.025 | |
Delivery Conditions:
+C Hard. No final treatment after final cold drawing.
+LC Soft. Final heat treatment is followed by a suitable drawing pass (limited reduction of area).
+SR Stress Relieved. After final cold drawing, the tubes are stress relieved in a controlled atmosphere.
+A Annealed. After final cold drawing, the tubes are annealed in a controlled atmosphere.
+N Normalized. After final cold drawing, the tubes are normalized in a controlled atmosphere.
Process:
The cold drawn welded tube is produced by drawing ERW (electric resistance welded tube) through a die and over a mandrel plug.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.
Surface treatment: Oiled, black painted, hot dipped galvanized or phosphate coating as required.
Both ends of each crate will indicate the order no., heat no., dimensions, weight and bundles or as requested.
Standard AND Optional Testing:
Visual and dimensional test 100%.
Eddy current test 100% acc. to EN 10246-3.
Ultrasonic test 100% acc. to EN 10246-7.
Chemical composition.
Impact test.
Mill Test Certificate:
The product is supplied with 3.1.B inspection certificate,according to the standards EN 10204 and ISO 10474.
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