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Model Number: ASTM 4130
Key Specifications/Special Features:
Honing/skiving tubehascloser dimensional tolerances,better surface finishandhigher mechanical propertiesthan corresponding grades of hot finished seamlessApplication:High precision cold drawned seamless steel tube is used in automotive industry and in the occasion where the high accuracy, brightness, cleanness of the tube are requiredQuality standard:DIN 2391, EN 10305-1,SAE J524, ASTM A519 and GB3639Delivery condition:BKS, NBK, BK and BKWOuter diameter: 30-450 mm
Wall thickness:2-40 mm
Length random length, fixed length
Steel grade
1020, 1045, 4140, ST52, ST52.3, E355, SAE1026, Q345B
*Low temperature impact test upon request (27J/-20°C)
Packing
Coated with oil, all items shall be plain end, woven packing, two slings in each bundle
Our services
Third party inspectionacceptable, such as SGS, BV
Supplying financial support with UsanceL/C 180 daysafter B/L date
Wall thickness:2-40 mm
Length random length, fixed length
Steel grade
1020, 1045, 4140, ST52, ST52.3, E355, SAE1026, Q345B
*Low temperature impact test upon request (27J/-20°C)
Packing
Coated with oil, all items shall be plain end, woven packing, two slings in each bundle
Our services
Third party inspectionacceptable, such as SGS, BV
Supplying financial support with UsanceL/C 180 daysafter B/L date
| Size | ||||||
| Processing | Cylinderdiameter | Length/mm | Straightness | Sizeaccuracy | Wallthickness/mm | Innerboreroughness |
| Cold Drawn/Rolled | ID 28-OD 400 | ≤12m | 0.3-1.0mm/m | H 8-H 11 | ±5% | 0.8-1.6um |
| Honed/SRB | ID 30-OD 450 | ≤12m | 0.3-1.0mm/m | H8 | ±5% | 0.4-0.8um |
| Inner hole size tolerance | ||||||
| IDsize | IDdeviation(mm) | |||||
| H7 | H8 | H9 | H10 | |||
| 30 | 0.021 | 0.033 | 0.052 | 0.084 | ||
| >30-50 | 0.025 | 0.039 | 0.062 | 0.1 | ||
| >50-80 | 0.03 | 0.046 | 0.074 | 0.12 | ||
| >80-120 | 0.035 | 0.054 | 0.087 | 0.14 | ||
| >120-180 | 0.04 | 0.063 | 0.10 | 0.16 | ||
| >180-250 | 0.046 | 0.072 | 0.115 | 0.185 | ||
| >250-315 | 0.052 | 0.081 | 0.13 | 0.21 | ||
| >315-450 | 0.0527 | 0.089 | 0.14 | 0.23 | ||
Shipping Information:
- FOB Port: China (Mainland)
- Lead Time: 5 - 45 days
Main Export Markets:
- Asia
- Australasia
- Central/South America
- Eastern Europe
- Mid East/Africa
- North America