Products Description
Product Specifications
| Standards | EN 10297-1 |
| Steel Grades | E355 / 1.0580,E235 E275 E315 E470 E275K2 E420J2 E355K2 E460K2 E590K2 E730K2 C22E C35E C45E C60E. |
| Equivalent Standards | SAE 1026 / ST52 / DIN 2391 ST52 |
| Outer Diameter (OD) | 5mm-420mm |
| Wall Thickness (WT) | 0.5mm-55mm |
| Length |
6-12m,or customizable |
| Surface Treatment | Bright, Black Phosphated, Zinc Coated, Oiled |
| Production Process | Cold Drawn / Cold Rolled |
| Condition | NBK (+N), BK (+C), BKS (+SR), GBK (+A), etc. |
Customized Services
- TORICH offers precision cutting and customization services for dimensions such as outer diameter and wall thickness.
- We support bending and CNC forming services.
- We also provide end-finishing services, including turning, deburring, tapping, upsetting, and grooving.
manufacturing process
Chemical Composition
| Element | C (Carbon) | Si (Silicon) | Mn (Manganese) | P (Phosphorus) | S (Sulfur) | Cr (Chromium) | Ni (Nickel) | Cu (Copper) |
|---|---|---|---|---|---|---|---|---|
| E355 | ≤ 0.22 | ≤ 0.55 | 1.10 – 1.60 | ≤ 0.025 | ≤ 0.025 | ≤ 0.30 | ≤ 0.30 | ≤ 0.30 |
Mechanical Properties
| Property | Yield Strength (ReH) | Tensile Strength (Rm) | Elongation (A) | Hardness | Impact Toughness |
|---|---|---|---|---|---|
| E355 | ≥ 355 MPa | 490 – 630 MPa | ≥ 20% | 160–220 HB (typical) | Good at room & low temperature |
Possible Alternative Grades
- For high-pressure hydraulic systems or heavy-duty truck components, E470 is a suitable choice, offering high strength.
- For components requiring corrosion resistance-such as fuel injection lines-Stainless Steel TP304 is the preferred option.
- DIN 1629 St52 serves as an equivalent substitute for E355; the two materials exhibit highly similar chemical compositions and mechanical properties, and are widely utilized in applications such as automotive drive shafts and hydraulic cylinder barrels.
application areas
1. Automotive Shock Absorption Systems: Shock absorber tubes, piston rod sleeves, and mounting bracket connection tubes.
2. Automotive Hydraulic Transmission Systems: Hydraulic cylinder tubes, hydraulic fluid lines, power steering lines, and clutch lines.
3. Automotive Chassis Systems: Chassis support brackets, suspension components, driveshaft sleeves, and steering knuckle connection tubes.
4. Automotive Braking and Fuel Systems: Brake lines, fuel delivery lines, and fuel injection system conduits.
5. Automotive Engine Systems: Engine mounting tubes, cooling system lines, and auxiliary exhaust system conduits.
Products Show
Testing Equipment
Factory Equipment
Hot Rolled
Products Package
FAQ
Q: What is the weldability of E355 tubing?
A: E355 is a non-alloy steel with a maximum carbon equivalent (CEV) of 0.47, exhibiting moderate weldability. Generally, it can be welded using standard arc welding processes (TIG, MIG, or Shielded Metal Arc Welding).
Q: Can the dimensional tolerances of this tubing meet the assembly requirements for precision automotive components?
A: For E355 Cold Drawn Seamless Carbon Steel Tube, the outer diameter tolerance can be controlled within ±0.1–0.3 mm, and the wall thickness tolerance is ±5%.
Q: Is E355 cold-drawn seamless steel tubing suitable for high-temperature environments?
A: It is typically suitable for operating temperatures not exceeding 400°C.
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