BBN supply EN 10025-6 S690QL1 high strength steel cold brittleness

Thin steel 5mm to 10mm EN 10025-6 S690QL1 high strength steel stock list
5*2550*9200, 5.5*2500*10000, 5*2670*8500, 7*2260*8600, 6*2510*10400, 5*1860*12000, 8*2000*10000, 7*2000*8000, 8*2350*8600, 10*2500*8500, 8*2540*8200, 9*2500*9500, 10*2510*10600, 8*2400*6000, 10*2550*8500, 10*2800*6300, 10*1600*12000, 10*2000*6500, 10*2650*8300, 10*2800*6150, 10*2000*8600, 10*2150*5500.

The yield point of the steel structure determines the stress that the structure can withstand without permanent deformation. The minimum yield point of typical carbon structural steel is 235MPa. The minimum yield point of typical low-alloy high-strength steel is 345MPa. Therefore, according to the proportional relationship of its yield point, the use of low-alloy high-strength steel allows the stress to be 1.4 times higher than that of carbon structural steel. Compared with EN 10025-6 S690QL1 high strength steel, carbon structural steel, the use of low-alloy high-strength steel can reduce the size of structural parts and reduce weight.

The company adopts the EN 10025-6 S690QL1 high strength steel international advanced management system, and has passed the certification of ISO9001 quality management system, ISO14001 environmental management system and GB / T28001-2001 occupational health and safety EN 10025-6 S690QL1 high strength steel management system, and has realized the comprehensive integration of the three systems.

In order to obtain the seamless tube with smaller size and better quality, the method of cold rolling, cold drawing or the combination of the two must be used. Cold rolling is usually carried out on a two high mill, and EN 10025-6 S690QL1 high strength steel pipes are rolled in a circular pass composed of a variable cross-section circular groove and a fixed conical head. Cold drawing is usually carried out on single chain or double chain cold drawing machines of 0.5-100t.

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