nm500 grade material angle bars
SAPH series steel plates for automobile structures have good stamping and forming properties, and are used to make automobile beams, wheels and other structural parts. Hot rolled high yield strength steel for cold forming has high strength and good cold formability, and is used to make structural parts such as automobile beams. NM500 grade material, The steel for automobile girder has good stamping forming performance, and is used for manufacturing structural members such as longitudinal beams and transverse beams of automobile frames.
The company covers an area of 15,000 square meters and the plant construction area is 10,000 square meters. We have introduced more than 50 sets of advanced NM500 grade material production equipment, auxiliary equipment and testing equipment at home and abroad, more than 260 employees, more than 20 middle and senior management staff, more than 10 professional and technical personnel, annual production capacity of 100,000 tons. Main products: flat steel, NM500 grade material steel pipe, steel plate, section steel, steel structure processing parts, etc. We also accept incoming materials and annealing processing.
The preparation of NM500 grade material galvanized steel before welding is the same as that of ordinary low-carbon steel. It is necessary to carefully handle the groove size and nearby galvanized layer. In order to achieve penetration, the groove size shall be appropriate, generally 60 ~ 65 °, with a certain gap, generally 1.5 ~ 2.5mm; in order to reduce the penetration of zinc into the weld, the galvanized layer in the groove can be removed before welding. In the practical work, the centralized beveling, no blunt edge technology for NM500 grade material centralized control, two-layer welding process, reducing the possibility of incomplete penetration.
Generally speaking, the higher the strength of NM500 grade material, weathering steel, the greater the hardness, while the plasticity and toughness will decrease. When the carbon content of weathering steel exceeds 1.2%, the hardness will increase, but the strength will not increase, but will decrease. Resilience will also decline quickly. When the carbon content is high, the cementite increases and forms network distribution, which weakens the connection between grains and makes the mechanical properties of steel worse.
Our company has established and constantly improved the customer service system and emergency response system. Through the customer service management system, we track the service of the after-sales service team and provide efficient and standard services in time. At the same time, the company formulates a regular return visit system, compares the historical cases of customer problems, proposes a pre solution, and ensures that the service is in place in a short time.
