Military bulletproof steel plate S690QL1 1.8988 high strength steel coil

S690QL1 1.8988 high strength steel coil, 40Cr material is a common machinery manufacturing steel under GB/T 3077-2015 standard. After tempering, it has good comprehensive mechanical properties, good low temperature impact toughness and low notch sensitivity. The hardenability of steel is good. It can be hardened to Ф28-60mm during water quenching and Ф15-40mm during oil quenching. The cutting performance is better, when the hardness is HB174 -229, the relative cutting workability is 60%.

The full name of wear-resistant steel plate is actually bimetal composite wear-resistant steel plate. This type of steel plate is mainly composed of two parts: low-carbon steel plate and alloy wear-resistant layer. The two parts perform their duties. S690QL1 1.8988 high strength steel coil, Low-carbon steel plate has super strong strength and toughness, while the alloy wear-resistant layer has excellent wear-resistant performance, the two parts cooperate with each other to form a powerful wear-resistant steel plate.

The preparation of S690QL1 1.8988 high strength steel coil 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 S690QL1 1.8988 high strength steel coil centralized control, two-layer welding process, reducing the possibility of incomplete penetration.

The company focuses on two markets at home and abroad, and has a group of 56 experienced sales elites and professional and technical personnel. It can provide customers with drawing design, S690QL1 1.8988 high strength steel coil deep processing services and installation solutions. 20 years of project experience has provided high-quality carbon steel, alloy steel products and high-quality after-sales service to customers in many countries around the world. The company has won widespread praise from customers.