api 5l b erw steel pipe 1)Grades:304,304L,316,316L,317,310 2)OD:4-426mm 3)WT:1-50mm 4)Standard:ATSM,AISI,DIN,
model number: H40, J55, K55, N80, L80, P110, C75,C95
Mechanical properties
Standard codes | Models of steel tubes | Tensity strength MPa | Yield strength MPa | Elongation | Hardness |
API SPEC 5CT | J55 | ≥517 | 379552 | check the table | |
K55 | ≥517 | ≥655 | |||
N80 | ≥689 | 552758 | |||
L80(13Cr) | ≥655 | 552655 | ≤241HB | ||
P110 | ≥862 | 758965 |
Chemicalcomposition:
Standard codes | Models of steel tubes | Chemical compositions | ||||||||||
C | Si | Mn | P | S | Cr | Ni | Cu | Mo | V | Als | ||
API SPEC 5CT | J55K55 (37Mn5) | 0.340.39 | 0.200.35 | 1.251.50 | ≤0.020 | ≤0.015 | ≤0.15 | ≤0.20 | ≤0.20 | ≤0.020 | ||
N80 (36 Mn2V) | 0.340.38 | 0.200.35 | 1.451.70 | ≤0.020 | ≤0.015 | ≤0.15 | 0.110.16 | ≤0.020 | ||||
L80(13Cr) | 0.150.22 | ≤1.00 | 0.251.00 | ≤0.020 | ≤0.010 | 12.014.0 | ≤0.20 | ≤0.20 | ≤0.020 | |||
P110 (30CrMo) | 0.260.35 | 0.170.37 | 0.400.70 | ≤0.020 | ≤0.010 | 0.801.10 | ≤0.20 | ≤0.20 | 0.150.25 | ≤0.08 | ≤0.020 | |
API 5CT oil casing pipe api 5l b erw steel pipe
