ST52-3 equivalent ASTM A572 grade 50 structural steel plate belongs to high tensile low alloy steel in ASTM standard. ST52-3 equivalent ASTM A572 grade 50 structural steel plate can be called high tensile low alloy Ni-V steel.
ST52-3 equivalent ASTM A572 grade 50 structural steel plate contains more alloying elements than general carbon steel. ASTM A572 grade 50 structural steel plate is noted for its increased resistance to atmospheric corrosion.
ST52-3 equivalent ASTM A572 grade 50 structural steel plate chemical composition:
| Grade |
Thickness
(mm) |
C≤ |
Mn≤ |
P≤ |
S≤ |
Si≤ |
Alloy composition |
| |
|
|
|
|
|
≤40 |
＞40 |
|
| A572 Grade 50 |
100 |
0.23 |
1.35 |
0.040 |
0.05 |
0.40 |
0.15~0.40 |
I-Nb:0.005~0.05
II-V:0.01~0.15
III-Nb+V:0.02~0.15
IV-N: ≤ 0.05
(V: N=1/4) |
ST52-3 equivalent ASTM A572 grade 50 structural steel plate finds its best application where there is need for more strength per unit of weight. Less of ST52-3 equivalent ASTM A572 grade 50 structural steel plate is needed to fulfill given strength requirements than is necessary with regular carbon steels. ST52-3 equivalent ASTM A572 grade 50 structural steel plate is used in general plate applications when the plate will be riveted, bolted, or welded.
