Tubes for Mechanical and Automobile
Seamless Steel Tubes for Mechanicaland Automobile usage for Backbone of Automobile and rear axle tube,manufacturing and processing of precision equipments, instruments andapparatus.
Our carbon steelpressure tubing inventory is manufactured in accordance with ASME SA-178A and/or ASME SA-214 in diameters of 3/4″ through 4".
Application:
- Backbone of Automobile and rear axle tube
- Manufacturing and processing of precision equipments, instruments and apparatus
Production Standard, Grade, Steel No:- DIN2391 St35St45St52
- ASTM A519 1010, 1020, 1025, 1035, 1045
- ASTM A513 1010, 1020, 1025, 1035, 1040
- BS6323 CFSCFS3ACFS4-11
- EN10305-1 E215E235E355
- JIS G 3441 SCM415TK SCM 430 TKSCM 440 TK
- GB/T3639 10, 20, 35, 45
Delivery Condition: GBK, BKS, BK, BKW, NBK
Inspection and Test:- Chemical Composition, Mechanical Properties, Visual and Dimension Test, NDT, Grain Size Test
Surface treatment:- Oil-dip, Varnish, Shot Blasting
Grade and Chemical Composition (%)
| Grade | C | Mn | P≤ | S≤ | Si | Cr | Mo |
| 1010 | 0.08-0.13 | 0.30-0.60 | 0.04 | 0.05 | - | - | - |
| 1020 | 0.18-0.23 | 0.30-0.60 | 0.04 | 0.05 | - | - | - |
| 1045 | 0.43-0.50 | 0.60-0.90 | 0.04 | 0.05 | - | - | - |
| 4130 | 0.28-0.33 | 0.40-0.60 | 0.04 | 0.05 | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 |
| 4140 | 0.38-0.43 | 0.75-1.00 | 0.04 | 0.05 | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 |
Typical Mechanical Properties
| Grade | Condition | Tensile strength | Yield stength | Elongation |
| Mpa(min) | Mpa(min) | %(min) | ||
| 1020 | CW | 414 | 483 | 5 |
| SR | 345 | 448 | 10 | |
| A | 193 | 331 | 30 | |
| N | 234 | 379 | 22 | |
| 1025 | CW | 448 | 517 | 5 |
| SR | 379 | 483 | 8 | |
| A | 207 | 365 | 25 | |
| N | 248 | 379 | 22 | |
| 4130 | SR | 586 | 724 | 10 |
| A | 379 | 517 | 30 | |
| N | 414 | 621 | 20 | |
| 4140 | SR | 689 | 855 | 10 |
| A | 414 | 552 | 25 | |
| N | 621 | 855 | 20 |
Size Range
Tubular products seamlessmechanical tubing is furnished in both cold-drawn and hot finished formin a wide range of sizes, from 1.375″ to 7.750″ OD and from 0.188″ to1.625″ wall thickness.
Minimum Quantities
Hot-finished carbon and alloy—10,000 pounds, or 4,536 kilograms minimum.
Cold-drawncarbon and alloy—5,000 pounds minimum or 125 feet minimum, 2,268kilograms minimum or 38.1 meters minimum, whichever is greater.
Quantity variation—standard ±10% of the ordered weight, or ±25 feet or 7.61 meters, whichever is greater.
Cold-drawncarbon and alloy—5,000 pounds minimum or 125 feet minimum, 2,268kilograms minimum or 38.1 meters minimum, whichever is greater.
Quantity variation—standard ±10% of the ordered weight, or ±25 feet or 7.61 meters, whichever is greater.
Special Configurations
Tubular Products specialseamless tubing configurations start with the highest quality steels.Grade, chemical analysis and surface condition are carefully considered,and production processes are tailored to achieve the best tubing forthe end use.
The configurations are formed from round tube by colddrawing. The tube is drawn over a shaped mandrel or through a shapeddie, or both. Improved tolerances, finishes and mechanical propertiesresult.
The configurations are formed from round tube by colddrawing. The tube is drawn over a shaped mandrel or through a shapeddie, or both. Improved tolerances, finishes and mechanical propertiesresult.
