1. ASTM A709 Gr50 is an American standard bridge steel plate, and the implementation standard is ASTM A709/A709M. There are also materials that mention the implementation of ASTM A572/A572M standards.
2. Delivery status
The delivery status is generally hot rolling and controlled rolling. It can also be delivered in heat treatment states such as normalizing, TMCP, quenching + tempering according to user needs.
3. Thickness tensile performance
Mostly refers to the Z-direction performance of the steel plate. A709MGr50 steel plate can be customized with three levels of Z-direction performance: Z15/Z25/Z35.
4. Yield strength level
Among the nine available models, there are four yield strength levels as follows, among which the yield strength of A709Gr50(345) is 50(345), i.e. 50ksi (345MPa)
5. Specifications
Common specifications include A709Gr50 1024389144, A709Gr50 1224389144, etc. Thicknesses of 8mm - 650mm can also be supplied, and width and length can be customized according to customer requirements. Steel plates with thicknesses of 8 - 300mm, widths of 1500 - 4000mm, and lengths of 6000 - 17000mm can also be produced.
6. Flaw detection standards
It can be produced and inspected according to domestic and foreign flaw detection standards such as my country (JB4730, GB/T2970), the United States (A435, A577, A588), Japan (JISG0801, JISG0901), Germany (SEL072), the United Kingdom (BS5996), France (NFS04-305), etc., and can also propose first-level, second-level, and third-level flaw detection requirements.
7. Applications
It is widely used in engineering structures, such as building steel structures, construction machinery, mining machinery, trucks, bridges, pressure vessels, etc., especially for construction and engineering machinery parts that require good weldability and toughness. It can also be used to manufacture workshops, general buildings and various types of engineering machinery, such as drilling rigs, electric shovels, electric wheel dump trucks, mining vehicles, excavators, loaders, bulldozers, various cranes, coal mine hydraulic supports and other mechanical equipment and other structural parts used in mines and various engineering construction.
