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Our company attaches great importance to technical support and after-sales service, and has established a customer service center to provide unified technical support and service for Q235NH railway steel sheet various engineering projects. Customer service center has a strong technical force of technical service team, composed of a customer service center manager, several Q235NH railway steel sheet after-sales service personnel, responsible for unified acceptance and processing of local after-sales service needs.
The Q235NH railway steel sheet, wear-resistant steel plate has complete specifications and many varieties, and has become a commercial series. The thickness of the wear-resistant alloy layer is 3-20mm. Wear-resistant steel plates are divided into three types: ordinary type, impact resistant type and high temperature type. Wear-resistant steel plate can be cut, bent or crimped, welded and punched, and it can be processed into various parts that can be processed by ordinary steel plate. The cut wear-resistant steel plates can be tailor-welded into various engineering structural parts.
Q235NH railway steel sheet annealing is to heat the steel to 30 ~ 50℃ above the critical temperature, keep it in the heat treatment furnace for a period of time, and then cool it down to room temperature with the furnace. The purpose of Q235NH railway steel sheet annealing is to refine the grain of steel, eliminate internal stress and reduce hardness, improve cutting performance, increase toughness and plasticity, and facilitate welding and rolling processes. Q235NH railway steel sheet annealing can be complete annealing, incomplete annealing, stress relief annealing, isothermal annealing and spheroidizing annealing.
BBN had provided Q235NH railway steel sheet Hardox plates for more than 15 years for widely applied in coal mining machinery, cement equipment, road construction machinery, engineering machinery, dump trucks, metallurgical area and port fields. In 2016,we brought our customer to visit our Q235NH railway steel sheet NM400 steel plate producing line and our Shanghai warehouse for 30000 tons plate and structure. As a result, Our client purchased 500 tons NM 400 as first order, which is shipped by 3 times. In future, BBN will always guarantee that all the delivery condition for Hardox plate provided will be with quenching and tempering, which is the best delivery type according GBT 24186 standard.