ASTM A514Grade A under ASTM A514 standard, A514 Grade A is for high yield strength, quenched and tempered alloy steel plate, suitable for wedding, and under intended primarily for use in welded bridges and other structures.
ASTM A514 Grade A chemical composition
|
C |
Mn |
P |
S |
Si |
Cr |
Mo |
Zr |
B |
|
0.15-0.21 |
0.8-1.1 |
≤0.035 |
≤0.04 |
0.4-0.8 |
0.5-0.8 |
0.18-0.28 |
0.05-0.15 |
0.0025 max |
ASTM A514 Grade A mechanical properties
|
Thickness Inch |
Yield Strength
Mpa |
Tensile Strength Mpa |
Elongation in 50mm |
Brinell Hardnees |
|
less 3/4 inch |
690 |
760-895 |
18 |
235 |
|
over 3/4 to 2 1/2 |
690 |
760-895 |
18 |
- |
|
over 2 1/2 to 6 inch |
620 |
690-895 |
16 |
- |
A514 Grade A is for high yield strength, quenched and tempered alloy steel plate, suitable for wedding, and under intended primarily for use in welded bridges and other structures.
For plate thickness is less 3/4 inch(20mm), A514 Grade A steel’s mechanical property is yield strength 690 MPa, tensile strength 760-895MPa, elongation is minimum 18% , brinell hardness is 235. Tolerance Standard shall be carried out according to ASTM
A36.
