4140 mechanical structural pipe is a low alloy material in the American standard ASTM A519.
GNEE's ASTM A519 4140 mechanical pipe also has good machinability and weldability, suitable for a variety of processing methods and process requirements, and can be customized to meet the needs of different specifications and lengths.
ASTM A519 4140 steel pipe has a tensile strength of 95,000 psi and a yield strength of 60,000 psi. It is widely used in petroleum, chemical, power, construction, and aerospace.
Chemical composition of ASTM A519 4140 grade alloy steel pipe
| C | ||||||
|---|---|---|---|---|---|---|
| 0.38-0.43 | 0.75-1.00 | 0.040 | 0.040 | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 |
ASTM A519 4140 Alloy Pipe Mechanical Properties
| Yield Strengtd R2 (Mpa) | Elongation in 2 in or 50 mm A(%) | |||
|---|---|---|---|---|
| 855 min (120 ksi) | 621 min (90 ksi) | 15 min | 100 | |
| 855 min (120 ksi ) | 689 min (100 ksi) | 10 min | 100 | |
| 552 min (80 ksi ) | 414 min (60 ksi) | 25 min | 85 | |
| 855 min (120 ksi ) | 621 min (90 ksi) | 20 min | 100 | |
| Q+T (Quenched and tempered.) |
ASTM A519 Grade 4140 Steel Tubing Specifications
| ASTM A519 / ASME SA 519 | |
| 1/4" to 30" | |
| 0.375" to 1.500". | |
| 20, 30, 40, 80, 100, 120, 140, 160, XXH, Standard (STD), Extra Heavy (XH) | |
ASTM A519 Grade 4140 High Pressure Tubing
GNEE has established ISO9001:200S quality management system and implemented total quality management. Now, we sell 160,000 tons of steel pipes per year, including high, medium and low pressure boiler, ship, liquid product transportation pipes. We provide high quality products to customers in different industries.
The steel pipes produced by GNEE will undergo quality inspection, chemical composition analysis, tensile test, hardness test, flattening test, expansion test, non-destructive testing, surface inspection and dimension inspection before leaving the factory.
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