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Precision Seamless Steel Tube
Standard: DIN 2391 EN 10305-1DIN 2445
Application: For Auto use, machinery use, Oil cylinder tube, Motorcycle shock reducer steel tubes, Auto shock reducer inner cylinder
Delivery condition: Cold worked, Annealed, Normalized, Stress Released
Certificate: ISO9001 TUV
Packing:
1. Standard export bundle wrapped with strong steel strip
2. Wooden case
3. Nylon packed
Your special requirement is highly welcomed and will be fulfilled.
We always provide highest quality seamless pipe/tube and best service.
Skype: samsonhuang22
MAIL: samsonhuang(at)shunitesteel.com
| Grade | Chemical Composition ( % ) | ||||
| C max | Si max | Mn | P max | S max | |
| St 35 | 0.17 | 0.35 | ≥ 0.40 | 0.025 | 0.025 |
| St 45 | 0.21 | 0.35 | ≥ 0.40 | 0.025 | 0.025 |
| St 52 | 0.22 | 0.55 | ≤ 1.60 | 0.025 | 0.025 |
| grade | cold drawing lucency hardness | cold drawing lucency hardness | drawing lucency | ||||
| stress free anneal | |||||||
| BK | BKW | BKS | |||||
| Tensile Strength Rm | Elongation % | Tensile Strength Rm | Elongation % | Tensile Strength Rm | Yield Strength | Elongation % | |
| ReH | |||||||
| N/mm | N/mm | N/mm | N/mm | ||||
| min | min | min | min | min | min | min | |
| St35 | 480 | 6 | 420 | 10 | 420 | 315 | 14 |
| St45 | 580 | 5 | 520 | 8 | 520 | 375 | 12 |
| St52 | 640 | 4 | 580 | 7 | 580 | 420 | 10 |
| grade | Anneal | Normalization | |||
| GBK | NBK | ||||
| Tensile Strength Rm | Elongation % | Tensile Strength Rm | Yield Strength | Elongation % | |
| N/mm | N/mm | ReH | |||
| N/mm | |||||
| min | min | min | min | min | |
| St35 | 315 | 25 | 340-470 | 235 | 25 |
| St45 | 390 | 21 | 440-570 | 235 | 21 |
| St52 | 490 | 22 | 490-630 | 355 | 22 |
cold rolled steel tube
