API 5L standard, we can regard X65 steel plate/pipes as large diameter pipes.
API 5L X65 steel is a higher strength, tough, weldable steel for applications in the oil and gas industry.
API 5L X65 steel Flange Steel meets fully the mechanical property requirements of the API 5LX X65 line pipe specifications whilst maintaining a high degree of toughness and weldability.
X 65 API5L Material#1.8975 | Comparison of steel grades | |
DIN 17172 | StE 445.7TM | |
EN10208-2 | L450MB |
X65 steel plate/pipes Chemical composition-% by mass*
Grades | Material number | C max | Si max | Mn. mix | P max | S max |
X65 | 1.8975 | 0.04-0.16 | 0.55 | 1.00-1.60 | 0.035 | 0.035 |
X65 steel plate/pipes Mechanical properties
Grade | Permissible yield point ratio | Yield Strength MPa(min) | Tensile Strength MPa | Elongation % (min) |
X65 | ≤ 0.85 | 440 | 560 - 710 | - |
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