ASTM A515 Grade 70 steel plate is mainly used for manufacturing pressure components such as boiler barrel and end cover of collecting box under medium temperature. ASTM A515 Grade 70 steel plate should has high room temperature strength, good impact toughness and low notch sensitivity. Due to the large amount of cold deformation in the processing of components, it is necessary to have good toughness, good processing technology and welding performance.
ASTM A515 Grade 70 chemical composition:
|
Grade |
C |
Mn max |
Si |
P max |
S max |
|
A515 Grade 70 |
0.31-0.35 |
1.30 |
0.13-0.45 |
0.035 |
0.035 |
ASTM A515 Grade 70 mechanical properties:
|
Grade |
Tensile Strength (MPa) |
Yield Strength (MPa) min. |
% Elongation in 2 in.(50mm) min |
% Elongation in 8 in.(200mm) min |
Impacting Test Temperature(°C) |
|
A515 Grade 70 |
485-620 |
260 |
21 |
17 |
-20,40,-60 |
In addition to the basic requirements of ASTM A515 Grade 70, certain supplementary requirements are available where additional control, testing, or examination is required to meet end use requirements. Such as Vacuum Treatment, Product Analysis, Simulated Post-Weld Heat Treatment of Mechanical Test Coupons, Ultrasonic Examination and so on.
Please feel free to contact us if any requirements of ASTM A515 Grade 70 steel plate.
