A709 Gr 100 bridge steel plate,Standing at a new historical starting point, we adapt to the requirements of supply side structural reform, adhere to the overall strategy of "innovation driven, quality leading, quality improving and efficiency increasing, transformation and development", and constantly improve the development concept and development level with a forward-looking vision and grand vision. Now we have been ranked the International leading steel materials supplier.A709 Gr 100 bridge steel plate
Smelting process of container plate SPA-H weather-resistant steel: The molten iron for smelting SPA-H steel must be pretreated by molten iron desulfurization. Before entering the converter, the sulfur content of the molten iron is ≤0.010%, and the slag on the surface of the molten iron is cleaned. Nickel plates, copper particles or nickel-copper alloys are added to the converter with scrap steel. The carbon content of the converter smelting end is required to be less than 0.06% to prevent the molten steel from being oxidized.
A709 Gr 100 bridge steel plate,After quenching and tempering, 40Cr alloy steel plate and sheet have good comprehensive mechanical properties, good low temperature impact toughness and low notch sensitivity The hardenability of steel is good It can be hardened to Ф28 ～ 60mm during water quenching and Ф15 ～ 40mm during oil quenching In addition to quenching and tempering, this steel is also suitable for cyanidation and induction hardening The cutting performance is better When the hardness is HB174 ～ 229, the relative cutting workability is 60% 40Cr alloy steel is suitable for making medium-sized plastic molds,A709 Gr 100 bridge steel plate.
S355J2 steel plate rolling process is controlled rolling process. In the rolling process, the ingot rolling temperature is 1000-1050℃; in the first stage, the low-speed and large reduction rolling process is adopted, the high-temperature stage is 950-1000℃, the rolling speed is 1.6-2.0m/s, the single reduction rate is 15-20%, and the cumulative reduction rate is 40-45%, so as to ensure sufficient deformation of ingot. In the first stage, the start rolling temperature is 910-930℃, and the finish rolling temperature is ≤ 870℃.
The steel plate, steel pipe and other steel materials are the important material in the material engineers. Our company will provide the high quality the steel plate, steel pipe and other steel materials for you. We are exported the steel plate, steel pipe and other steel materials to the customers from USA, South America, Europe, Africa etc. If we can have the good cooperation together, you will be very welcome to be our agent in your local market. Let’s work together!A709 Gr 100 bridge steel plate
The company adopts one-to-one fast service and has formed a professional after-sales service team to deal with various problems reflected by customers as soon as possible. At the same time, a traceable product traceability system has been established. It has always been placed at an important core position to resolve customer worries. Our steel products are always committed to “quality issues, life-long replacement”, which is the embodiment of our comprehensive service.
