ASTM A709 Gr50 steel plate is a kind of high strength and low alloy steel plate and it is widely used in engineering structures, such as construction steel structure, construction machinery, mining mountainous machinery, trucks, bridge, pressure vessel and so on, especially used in construction and engineering machinery parts that asked good welding and toughness.
The specification of ASTM A709 Gr50 steel plate and A709 Gr50W is that the products cover carbon and high-strength low- alloy steel structural shapes, plates, and bars and quenched and tempered alloy steel for structural plates intended for use in bridges.
ASTM A709 GR50 steel plate Chemical Composition:
| ASTM A709 | C% max | Si% max | Mn% max | P% max | S% max |
| 50(345) | 0.23 | 0.15-0.40 | 1.35 | 0.04 | 0.05 |
| 50W(345W)A | 0.19 | 0.30-0.65 | 0.80-1.25 | 0.04 | 0.05 |
| 50W(345W)B | 0.20 | 0.15-0.50 | 0.75-1.35 | 0.04 | 0.05 |
| 50W(345W)C | 0.15 | 0.15-0.40 | 0.80-1.35 | 0.04 | 0.05 |
The products could be supplied quenched and tempered condition.
ASTM A709 GR50 steel plate Mechanical Property:
| ASTM A709 | Minimum yield strength ReH a MPab Nominal thickness mm | Tensile strength Rm MPab Nominal thickness mm | Elongation in 8 in. [200 mm], min, % | Elongation in 2 in. [50 mm], min, % |
| 50(345) | 50-65(345-450) | 65(450) | 18 | 21 |
| 50W(345W) | 50(345) | 70(485) | 18 | 21 |
Carbon Steels ASTM A709 Grade 50 steel plate is stocked by Shanghai katalor. Distributors will offer small quantity buys while mills will generally only sell large quantities, with delivery times anywhere from 10 to 50 weeks depending on size and form required. Katalor can supply ASTM A709 GR50 steel plate with high quality with good price. please contact us if you are interested in ASTM A709 Grade 50 steel plate katalor supplied.
