High strength low alloy A572 grade 50 Nb-V structural steel plate

High strength low alloy A572 grade 50 Nb-V structural steel plate is American ASTM standard low alloy plate, equivalent to Chinese steel grade Q345B. A572 grade 50 steel is used in general construction and all kinds of construction machinery. The A572 grade 50 Nb-V structural steel plate delivery states are hot rolling, controlled rolling, normalizing, etc.

Chemical composition of A572 grade 50 Nb-V structural steel plate:
C: ≤ 0.23
Si: 0.15-0.40
Mn: ≤ 1.35
P: ≤ 0.040
S: ≤ 0.050

Mechanical property of A572 grade 50 Nb-V structural steel plate:
A572 grade 50 steel tensile strength (σb / MPA): 460-630
A572 grade 50 steel yield point (σs / MPA): ≥ 345
A572 grade 50 steel elongation after fracture (δ5 /%): ≥ 21
A572 grade 50 steel impact energy akv20 °C (J): ≥ 34

High strength low alloy A572 grade 50 Nb-V structural steel plate is widely used to make the drilling rig, shovel, electric wheel tipper, mining truck, excavator, loader, bulldozer, various cranes, coal mine hydraulic support and other mechanical equipment and structural parts for the construction of mines and various projects.