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Tianjin Wanlei Steel Pipe Co.,Ltd
TEL: 86-22-65815991
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Casing And Tubing OCTG
casing and tubing OCTG Steel grade: J55, K55, N80-1 Delivery condition: AR, N Size range: OD 2-7/8 inch to 13-3/8 inch, WT 4mm to 35mm, according to API 5CT Dimension and tolerance: according to API 5CT Length: R1, R2, R3 Certificate: API 5CT monograme Chemical composition Mechanical properties
Description
casing and tubing OCTG
Steel grade: J55, K55, N80-1
Delivery condition: AR, N
Size range: OD 2-7/8 inch to 13-3/8 inch, WT 4mm to 35mm, according to API 5CT
Dimension and tolerance: according to API 5CT
Length: R1, R2, R3
Certificate: API 5CT monograme
Chemical composition
| Steel grade | Delivery condition | C max | Si max | Mn max | P max | S max |
| J55 | AR | / | / | / | 0.030 | 0.030 |
| K55 | AR | / | / | / | 0.030 | 0.030 |
| L80-1 | AR | / | / | / | 0.030 | 0.030 |
Mechanical properties
| Steel grade | Yield strength (MPa) | Tensile strength Min (MPa) | Elongation A Min (%) |
| J55 | 379-552 | 517 | As per API 5CT |
| K55 | 378-552 | 655 | |
| L80-1 | 552-758 | 689 |
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