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Help CenterCold Drawn High Mechanical Stainless Steel Honed Tube GB/T3639 , DIN2391
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Cold Drawn High Mechanical Stainless Steel Honed Tubes GB/T3639, DIN2391
Specifications
Standard:EN10305-1,DIN2391-2
Material:ST52,E355
Delivery condition:BKS,+SR
Manufacture:cold drawn+honed
Size:40*30-325*300
Based on the optimized cold drawn process and reliable raw material source, we significantly reduce
the stock margin for the honed tubes and increase dimensional accuracy of inside and outside diameters.
By cold drawing, it improves mechanical properties which can provide a wall thickness reductions of up to
30%, and leading to significant component weight reduction
Specifications
1 OD32-500mm W.T.3.5-80mm
2 ISO certificated DIN2391 En10305
3 Straightness:0.3~1mm/m
4 Inside Roughness:0.4~0.8um
steel pipes for hydraulic use
Material: C20, CK45, etc. also ST52 if given enough time. our products are widely used in hydraulic industry and is very popular both home and abroad.
And we can also make our products according to the customers\' needs.
Variety
|
Processing |
Cylinder diameter |
Length /mm |
Straightness |
Size accuracy |
Wall thickness/mm |
Inner bore roughness |
|
Cold-drawn |
ID30~OD250 |
≤13M |
0.3~1.0mm/m |
H9-H11 |
±8% |
0.8~1.6um |
|
Honed tube |
ID50~OD325 |
≤10M |
0.3~1.0mm/m |
H7-H9 |
±8% |
0.4~0.8um |
Mechanics performance
|
Material |
Tensile strength |
Yield strength |
Elongation |
Hardness |
|
Ck20 |
510 σ N/mm2 |
500σsN/mm2 |
5δs% |
175HB |
|
Ck45 |
660 σN/mm2 |
630σsN/ mm2 |
4δs% |
207HB |
|
ST52 |
580σ N/mm2 |
420σsN/ mm2 |
10δs% |
190HB |
|
27SiMn |
840σ N/mm2 |
805σsN/ mm2 |
7.5δs% |
230HB |
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