Cairo S690QL thickness top manufacturer

ASTM A588 is a high strength low alloy HSLA steel (high strength, low alloy) containing a small amount of alloying elements copper, chromium and AMP. Nickel. These alloying elements effectively improve the properties of A588 and expand its application range. Firstly, the alloy composition increases the S690QL thickness yield point strength to 50 Ksi and the tensile strength to 70 Ksi. Secondly, A588 S690QL thickness has high copper content, atmospheric corrosion resistance and long working time. Because of its excellent comprehensive performance, A588 angle steel is widely used in bridge, building and other structural fields.

S690QL thickness product plate specification range: Thickness 3-150mm Width 1500-4020mm Length 4000mm-17000mm Heat treatment: annealing, or normalizing and tempering

We provide customers with demand support and better serve them. We are committed to actively meet the needs of customers, always keep in touch with them in a timely manner, leave a good impression for customers, and make customers satisfied through our unremitting efforts. Customer satisfaction is our most basic vision, striving to become the best steel product service provider in the world

Phosphorus element (P element) is brought into steel by ore. Generally speaking, phosphorus is also harmful element. Although phosphorus can increase the strength and hardness of S690QL thickness etc. steel, it also causes the decrease of plasticity and impact toughness. Especially at low temperature, it makes steel significantly brittle, which is called "cold brittleness". The higher the phosphorus content is, the greater the cold brittleness is. Therefore, the phosphorus content in S690QL thickness etc. steel is strictly controlled.