DIN 2391 Seamless Cold Rolled Steel Tube bright surface for
mechnical purpose 4140
High Precision Cold Rolled Seamless Steel Tube is used in
automotive industry, and in the occasion where the high accuracy,
brightness, cleanness of the tube are required.
1. Inner and outer walls of tube have high accuracy.
2. Excellent brightness.
3. No oxidization after heat treatment
4. High cleanness inside tube.
Outer Diameter: 10-150 mm
Wall Thickness: 2-25 mm
Length Random Length, Fixed Length, etc.
|I.D tolerance (mm)||O.D tolerance (mm)||I.D Roughness (µm)||Straightness (mm/meter)|
Main Standard and grade:
DIN2391, BS6323, A519
1020, 1045, 4130, 4140, St52, St35, E355...
BK, BKS, BKW, GBK, NBK.
1. Bundle Packing.
2. Plain end or vanished as per customer’s request.
3. Wrapped in waterproof paper.
4. Sackcloth with several steel strips.
5. Pack in heavy tri-wall boxes.
Mill Test Certificate:
MTC is issued in accordance with EN 10204.
Please feel free to contact us again if you have any further
questions. We look forward to receiving an order from you.