RAEX400 steel is a hardened wear-resistant steel material with an average grade of 400HBW and a Brinell hardness. The microstructure of this wear-resistant steel is a martensite structure, which can ensure the high hardness and tensile hardness of the steel plate. The hardness of RAEX400 is 2.5 times that of S355 structural steel, A709 Gr HPS50W bridge steel plate. Despite its high hardness and high strength, RAEX400 steel can be formed by free bending or hemming, and has good weldability.
A709 Gr HPS50W bridge steel plate, Q345B low alloy plate performance: 1) High strength: Generally its yield strength is above 300MPa; 2) High toughness: The elongation is required to be 15% to 20%, and the room temperature impact toughness is greater than 600kJ/m to 800kJ/m. For large welded components, higher fracture toughness is also required; 3) Good welding performance and cold forming performance; 4) Low cold brittle transition temperature; 5) Good corrosion resistance.
As the thickness and hardness of A709 Gr HPS50W bridge steel plate increase, the tendency to crack at the cutting edge increases. In order to prevent the A709 Gr HPS50W bridge steel plate from cutting cracks, preheating should be carried out before A709 Gr HPS50W bridge steel plate cutting. Special attention should be paid to preheating to make the entire A709 Gr HPS50W bridge steel plate interface evenly heated to avoid local overheating in the area contacting the heat source. If the whole A709 Gr HPS50W bridge steel plate cannot be preheated, the partial preheating method can be used instead.
BBN steel strictly control quality of our carbon steel plate, alloy steel plates and structural steel plates. For A709 Gr HPS50W bridge steel plate ASTM A572 Grade 50 structural steel plate, Our Q/C Department will inspect dimension before shipment, making sure structural steel plate thickness tolerance and width, length tolerance are matchable to the A709 Gr HPS50W bridge steel plate standard requirements. The company is a good ASTM A572 grade 50 structural steel plate supplier in the globle market and the head is located in China. Welcome to send us inquiry and questions about structural steel plate.
We are willing to cooperate sincerely with you with high-quality A709 Gr HPS50W bridge steel plate products and sincere service to expand the market and create brilliant! We will work hard to create a first-class steel company and provide you with faster and more considerate after-sales services! Moreover, our shipbuilding steel plates have been certified by the nine countries' classification societies including DNV, ABC, GL, LR, BV, CCS, RINA, NK, and KR. The quality assurance system has passed ISO9001-2000 standard certification.
