Specifications
precision steel tube used in piston rodA:high accurate size
B:rust prevention treatment,oiled.
C:smooth surface
D:roughness
precision steel tube used in piston rod
features:
1)outer diameter:5mm--120mm
2)wall thickness:0.5mm--20mm
3)length:2m--8m or according customers'request
4)deviation of inner and outer diameter:o--0.03mm
5)linear degrees:0.03--0.15mm/m
6)surface roughness:Ra0.02--0.8um
7)we want to enter into business relations with you on a basis of mutual benefits and common development.
Technology Specification -----The Machanical Property Of Steel Tubes
The Main Product:Cold Drawn or Cold Rolled Refined Bright Steel Tubes; Production Range:OD:4.0-60mm WT:0.5-8mm | ||||||
Availability Status |
Brand | Performance Indicator | Executive
Standard | |||
Tensile Strength | Yield Strength | Elongation
| ||||
σb | σs | δs |
Enterprise
Standard
QQTB-
2005 | |||
Mpa | Mpa | % | ||||
StressReliefAnnealing |
BKS (+Sr@) | St35(10#) | 420 | 315 | 14 | |
St45(20#) | 520 |
| 12 | |||
St52(16Mn) | 580 | 420 | 10 | |||
Annealing | GBK (+A) | St35(10#) | 315 |
| 35 | |
St45(20#) | 390 |
| 32 | |||
St52(16Mn) | 490 |
| 30 | |||
Normalizing | NBK (+N) | St35(10#) | 340-470 | 235 | 32 | |
St45(20#) | 440-570 | 255 | 30 | |||
St52(16Mn) | 490-630 | 355 | 28 | |||
