Metal & Oil & Gas News – 
A519-4140 material is stocked in the annealed, normalized or quenched and tempered conditions. The heat treated material is controlled to L80, P110, Q125 or the customer’s specified properties. The material is weldable but requires a pre-heat before welding.
A519-4140 material is stocked in the annealed, normalized or quenched and tempered conditions.
Seamless Tubing sizes used in the oil and gas industry for above ground and down hole applications.
Yaang Steel can supply 4140 Tubing:
- A519-4140
- L80, P110, Q125 heat treated mechanicals
- 2.5 to 15inch OD
- 0.375inch to 4.0inch
Key: AISI 4140 tubing, ASTM A519 4140 tubing, 4140 alloy tubing
TOLERANCES
| Condition | OD | Wall |
| Annealed or Normalized | ASTM A519 | ASTM A519 |
| Quenched and Tempered | +/-1% | +/-12.5% |
Mechanical Properties
The minimum wall thickness at any point shall not be more than 12.5% under the nominal wall thickness specified.
| Mechanicals | Heat Condition | Hardness | Yield | Tensile |
| A519-4130 / 4140 | Quenched and Tempered | 28-32 RC | Not Tested | Not Tested |
| API 5CT L80 in 4519-4100 | Quenched and Tempered | 18-22 RC | 80 – 95 ksi | 95 ksi min |
| API 5CT P110 in 4519-4100 | Quenched and Tempered | 30-36 RC | 110 – 140 ksi | 125 ksi min |
| API 5CT Q125 in 4519-4100 | Quenched and Tempered | 32-36 RC | 125 – 150 ksi | 135 ksi min |
Mechanical Tubing Delivery Condition :
- As different requirements,It including Size, Packing,Fixed Length,Random Length,And Different Annealing condition etc. (BK,NBK.Bright annealing …)
- CW-Cold Worked SR-Stress Relieved A-Annealed N-Normalized
ASTM A519 Standard Specification for Seamless Carbon and Alloy Steel Mechanical Tubing
From Metal & Oil & Gas News, post ASTM A519 4140 tubing
