The max thickness of A514 Grade H is 50mm. in the heat treatment, A514 Grade H shall be heat treatment by the mill to conform to the tensile and hardness requirements by heating to not less 900 degree and quenching in water or oil, tempering at not less 620 degree.
Quenched and tempered alloy steel plate A514 Grade H belongs to high yield and tensile strength steel plate.Rolling steel grade A514GrH furnished under ASTM A514/A514M shall conform to the requirements of the current edition of specification A6/A6M,for the ordered materials of steel A514 Gr.H.
A514 is an alloy steel grade, fully killed, fine grain. It is heat treated by quenching and tempering. The specification permits 18 compositions, of which Bethlehem produces Grades B, H and P. Its normal uses are industrial applications where high strength, low weight and high impact values are required. Machinery, mining equipment and other demanding applications.
A514 Grade H steel Chemical requirement in Heat analysis
|
C % |
Mn % |
P % |
S % |
SI % |
Ni % |
Cr % |
|
0.12-0.21 |
0.95-1.30 |
0.035 |
0.035 |
0.20-0.35 |
0.30-0.70 |
0.40-0.65 |
|
Mo % |
B % |
V % |
Ti % |
Zr % |
Cu % |
Co % |
|
0.20-0.30 |
0.0005-0.006 |
0.03-0.08 |
|
|
|
|
Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%
|
Grade |
SA514 Grade H Mechanical Property |
|||
|
Thickness |
Yield |
Tensile |
Elongation |
|
|
mm |
Min Mpa |
Mpa |
Min % |
|
|
20 |
690 |
760-895 |
18 |
|
|
20-65 |
690 |
760-895 |
18 |
|
|
65-150 |
620 |
690-895 |
18 |
|
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