Thick Wall Seamless Carbon Steel Tube ASTM A519 4130 4140 Material
Carbon Steel Tube ASTM A519 4130 4140 Seamless Steel Pipe Thick Wall
The ASTM A519 steel tube specification covers both hot-finished and cold-finished mechanical tubing in sizes up to 12-3/4” O.D. A519 is available in round, square, and rectangular profiles, and in special sections.
Main steel grades: 4130,4135,4140,4150
Application: A519 seamless tubing is commonly used in applications requiring machining, heat treating, close tolerances, smooth finishes, and/or definite physical properties.
Chemical Composition & Mechanical Properties:
| Chemical Requirements for Alloy Steels | ||||||||
| Grade Designation | Chemical Composition Limits, % | |||||||
| Carbon | Manganese | Phosphorus, max | Sulfur, max | Silicon | Nickel | Chromium | Molybdenum | |
| 4130 | 0.28-0.33 | 0.40-0.60 | 0.040 | 0.040 | 0.15-0.35 | - | 0.80-1.10 | 0.15-0.25 |
| 4135 | 0.33-0.38 | 0.70-0.90 | 0.040 | 0.040 | 0.15-0.35 | - | 0.80-1.10 | 0.15-0.25 |
| 4140 | 0.38-0.43 | 0.75-1.00 | 0.040 | 0.040 | 0.15-0.35 | - | 0.80-1.10 | 0.15-0.25 |
| 4150 | 0.48-0.53 | 0.75-1.00 | 0.040 | 0.040 | 0.15-0.35 | - | 0.80-1.10 | 0.15-0.25 |
| Grade | Condition | Tensile Point (Mpa) | Yield Point (Mpa) | Elongation |
| 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% |
Mark: As required.
Inspection and Test: chemical composition test, mechanical properties test(tensile, yield, elongation), process properties test(flatting, flaring, bending, hardness, impact, etc.), appearance and size test, non-destructive inspection test, hydrostastic test.
Delivery status: Annealed, normalized, normalized+Tempered, etc.
End: plain end, beveled end, threaded
End protection: plastic caps
Outside coating: black painting, anti-corrosion oil,galvanized finish, finish as per customer requirements.
Packing: Exporting package/wooden box /as requirement.
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