Length: as your request.
St37.4 Cold Rolled Steel Tube
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.
A519, BS6323, DIN2391, EN10305, GB3639
St37.4, St35, St52, E355, S355JR, 1020, 1045, 1026, 4130, 4140, 8620, 34CrMo4...
6m,5.8m,12m or be required
Prompt delivery as products in stock.
bared,bundled,wooden box packing for export standard packge
|I.D tolerance (mm)||O.D tolerance (mm)||I.D Roughness (µm)||Straightness (mm/meter)|
+C (BK) Hard. No final treatment after final cold rolling.
+LC (BKW) Soft. Final heat treatment is followed by a suitable drawing pass (limited reduction of area).
+SR (BKS) Stress Relieved. After final cold rolling, the tubes are stress relieved in a controlled atmosphere.
+A (GBK) Annealed. After final cold rolling, the tubes are annealed in a controlled atmosphere.
+N (NBK) Normalized. After final cold rolling, the tubes are normalized in a controlled atmosphere.
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