ASTM A283 steel is a carbon steel plate used for general structural purposes. This steel has low strength and medium strength. It has two steel grades (C and D). For steel coils or unheated steel plates, additional stress relief tests should be carried out. Usually, inspections, inspections, and heat treatments should be carried out before leaving the factory after the coils are opened,sa573 gr 70 carbon steel structural shapes.
40Cr grade under GB/T 3077-2015 standard is a alloy steel bar material. , 40Cr alloy chemical composition (C: 0.37 ~ 0.44, Si: 0.17 ~ 0.37, Mn: 0.50 ~ 0.80, Cr: 0.80 ~ 1.10, Ni: ≤0.30, P: ≤0.030, S: ≤0.030, Cu: ≤0.30, Mo: ≤0.10). Heat treatment: First quenching heating temperature (℃): 850; coolant: oil; Temperature heating temperature (℃): 520. 40Cr steel tensile strength (σb / MPa): ≥980. Yield point (σs / MPa): ≥785
After-sales service team is a key department to test the steel quality. Product quality is always the foundation of our survival and development. The company's full inspection from raw materials to finished products; and implements standardized, scientific, and strict internal quality control and management systems in accordance with the process flow during the production process; products can only leave the factory if qualified, and follow-up problem solving systems are implemented in after-sales services to guarantee the customers’ interest.
Our gas cylinder steel materials are hot selling in 2019. The order quanitity for gas cylinder steel coils and sheets amount to 10,000 tons. Among them, a large portion of the gas cylinder steel coils and sheets are exported to Uganda, Kenya and so on Africa countries for gas cylinder production companies. Now our gas cylinder steel has taken a large market share in local. We supply both gas cylinder steel coils and gas cylinder steel sheets. The dimension is customizable.
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