We offer API 5L X70 steel plate/pipes as large diameter pipes:

 

1. Equivalent grades:

DIN 17172 StE 480.7TM , EN10208-2 L485MB

 

2. Chemical composition(%): Si :≤ 0.55 C:0.04-0.16 Mn: 1.1-1.7 　S :≤ 0.035 P :≤ 0.0.35

 

3. Mechanical properties:

Tensile Strength σ b(MPa) :600-750

Yield Strength σ 0.2(MPa): ≥ 480

Permissible yield point ratio: ≤ 0.85

 

4. Characters :

X70 steel plate/pipes is one mainly of Steel for large diameter pipes, API-X70 steel with the demands in mechanical properties of the pipes followed the API specification for grade X70 (YS is 485MPa, TS is from 600-750 MPa). API-X70 steel is well known that a low carbon bainitic microstructure offers an excellent combination of strength and toughness.