A709Gr50 steel plate

A709Gr50 steel plate is a low-alloy high-strength steel plate and is an American standard steel plate for bridges. A709Gr50 steel plate is widely used in the manufacture of construction and construction machinery parts with good weldability and toughness.

Chemical composition of A709Gr50 steel plate:

Grade	C	Si	Mn	P	S	Nb
A709Gr50	≤0.20	≤0.40	≤1.50	≤0.04	≤0.05	0.005-0.05

Mechanical properties of A709Gr50 steel plate:

Grade	σs(MPa)	σb(MPa)	δ200, %	0Akv, J
A709Gr50	≥345	≥450	≥18	≥34

The flaw detection standard of A709Gr50 steel plate:
According to the customer's wishes, it can be in accordance with the national standard (JB4730, GB/T2970), American standard (A435, A577, A588), Japanese standard (JISG0801, JISG0901), German standard (SEL072), British standard (BS5996), French standard (NFS04-305) ) and other domestic and foreign flaw detection standards for production inspection, the requirements for primary, secondary, and tertiary flaw detection can be put forward.

The use of A709Gr50 steel plate:
A709Gr50 steel plate is generally used in construction and various engineering machinery, such as drilling rigs, electric shovels, electric wheel dump trucks, mining vehicles, excavators, loaders, bulldozers, various cranes, coal mine hydraulic supports for mines and various engineering constructions and other mechanical equipment and other structural parts. A709Gr50 steel plate can also be used to make road bridges and railway bridges (including cross-sea bridges) with riveted and bolted structures, and A709Gr50 steel plate is widely used in engineering structures, such as building steel structures, construction machinery, mining machinery, trucks, bridges, pressure vessels etc. A709Gr50 steel plates are also widely used in construction and construction machinery parts that require good weldability and toughness.