API 5CT L80 Casing and Tubing Pipe Manufacturer
API 5CT L80 Casing and Tubing Pipe Manufacturer
API 5CT L80 casing and tubing include grades L80-1, L80 9Cr (Cr 8%-10%), L80 13Cr (Cr 12%-14%), L80, minimum tensile strength 655 Mpa, yield strength 552 Mpa to 655 Mpa, it is a medium strength grade higher than J55/K55, and similar with N80 (YS 552 Mpa to 758 Mpa, TS 689 Mpa), L80 pipes has been used in oil well establishment, drilling and producinging oil and gas industries.
♣ CHEMICAL COMPOSITION
| Grade | Type | C | Si | Mn | P | S | Cr | Ni | Mo | Cu |
| L80 | 1 | ≤0.43 | ≤0.45 | ≤1.90 | ≤0.030 | ≤0.030 | – | ≤0.25 | – | ≤0.35 |
| 9Cr | ≤0.15 | ≤1.00 | 0.30-0.60 | ≤0.020 | ≤0.010 | 8.00-10.00 | ≤0.50 | 0.90-1.10 | ≤0.25 | |
| 13Cr | 0.15-0.22 | ≤1.00 | 0.25-1.00 | ≤0.020 | ≤0.010 | 12.00-14.00 | ≤0.50 | – | ≤0.25 |
♣ MECHANICAL PROPERTIES
| Grade | Type | Total Elongation under load |
Yield Strength (Mpa) |
Tensile Strength (Mpa) |
Hardness (Max.) | ||||
|
L80 |
％ | Min | Max | min . | HRC | HBW | |||
| 1 | 0.5 | 552 | 655 | 689 | 23 | 241 | |||
| 9Cr | 0.5 | 552 | 655 | 655 | 23 | 241 | |||
| 13Cr | 0.5 | 552 | 655 | 655 | 23 | 241 | |||
♣ PRODUCT CATALOG (Download)
Product Catalog-Steel tube (PDF)
