The company adheres to the people-oriented concept and takes "learning, sharing, gratitude, integrity, respect and responsibility" as the enterprise values. Advanced equipment, scientific standardized management, strict quality assurance system and high-quality team are the core competitiveness of the company. The company will continue to provide customers with A572 grade 60 ms steel coil high-quality, timely and perfect steel products and services under the guidance of the mission of "striving for perfection to meet customer needs".
We also produce various sizes of section steel, the main production methods are hot rolling, cold rolling, extrusion, forging, cold drawing and so on. Profile products have complex cross-section shape and various specifications. According to the section height, it can be divided into large section steel, A572 grade 60 ms steel coil, medium and small section steel, H section steel, I section steel (I-section steel), U section steel (channel steel), l section steel (angle steel) and ball flat steel, etc. Profiles are widely used in various sectors of the national economy, such as I-beam is mainly used in building components, bridge manufacturing, ship manufacturing, etc.; channel steel is mainly used in building structures, vehicle manufacturing, etc;
After quenching and tempering, 40Cr alloy steel plate and A572 grade 60 ms steel coil sheet have good comprehensive mechanical properties, good low temperature impact toughness and low notch sensitivity. The hardenability of steel A572 grade 60 ms steel coil 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.
With the increase of temperature, the yield limit of A572 grade 60 ms steel coil will decrease monotonically, but the tensile strength of A572 grade 60 ms steel coil will rise to a high peak value at a certain temperature, and then decrease. This peak temperature is called the blue brittleness temperature of A572 grade 60 ms steel coil. Near the blue brittleness temperature, the A572 grade 60 ms steel coil strength increases and the plasticity decreases. The elongation and section shrinkage of A572 grade 60 ms steel coil increase with the increase of temperature, but there is a low peak at the blue brittleness temperature. The blue brittleness temperature of low carbon steel ranges from 200 ℃ to 250 ℃. The blue brittleness of low alloy steel is not obvious as that of low carbon steel, and the blue brittleness temperature is higher.
A572 grade 60 ms steel coil, Q345C low alloy structural steel plates stock and size available: 13*2600*3800, 11*2890*3950, 14*1580*4700, 15.1*1600*3300, 14*1820*3050, 32*3200*2950, 11*2530*2450, 14*2000*3400, 12.7*2320*13200, 14*2720*3300, 32*2000*2950, 11*2250*2700, 26*1830*3650, 6*1800*4000, 14*1850*3350, 36*1700*2800, 12*3770*6600, 32*1900*3500, 15*1050*10000, 12.5*2810*3750,33*1500*3200, 45*1800*2650, 65*1700*2600 (mm).
The company's products A572 grade 60 ms steel coil have excellent quality, reasonable prices and strong usability, and are well received by users. Survive by quality, expand the market with integrity, continuously research and develop new products, expand varieties, to meet market demand, and make the company continue to grow. The needs and interests of users are our high philosophy of service and commitment, and customer satisfaction is our eternal pursuit.
Relying on the background of high-quality steel resources and its own strong steel machining capabilities, BBN comany can not only supply various steel material products, such as steel coils, steel plates, A572 grade 60 ms steel coil sheet, steel pipes, and shaped steels, but also provide a variety of steel deep processing services like cutting, welding and grinding. Through continuous technological innovation and after-sales service optimization, the company has its own world on the domestic and international steel industry stage!
