Special thick a573 grade 70 high strength structural steel supplier

Can a573 grade 70 high strength structural steel, 40Cr material be replaced with 40MnB steel? 40MnB steel is used to manufacture small and medium-sized important quenched and tempered parts in tractors, automobiles and other general machinery and equipment, such as automobile half shafts, steering shafts, spline shafts, worms and machine tool spindles, gear shafts, etc. 40MnB steel can replace 40Cr material to make parts with larger cross-sections, such as the middle shaft of a hoist. And 40MnB steel can replace 40CrNi steel when making small-sized parts.

Weathering steel is made of ordinary carbon steel with a small amount of copper, nickel and other corrosion-resistant elements. It has the characteristics of high-quality steel such as toughness, plastic extension, forming, welding and cutting, abrasion, high temperature and fatigue. a573 grade 70 high strength structural steel, Weathering steel sheets are used to manufacture containers, railway vehicles, oil derricks, harbour buildings, oil production platforms and containers containing hydrogen sulfide corrosive media in chemical oil equipment.

As the thickness and hardness of a573 grade 70 high strength structural steel increase, the tendency to crack at the cutting edge increases. In order to prevent the a573 grade 70 high strength structural steel from cutting cracks, preheating should be carried out before a573 grade 70 high strength structural steel cutting. Special attention should be paid to preheating to make the entire a573 grade 70 high strength structural steel interface evenly heated to avoid local overheating in the area contacting the heat source. If the whole a573 grade 70 high strength structural steel cannot be preheated, the partial preheating method can be used instead.

The company has a professional after-sales service team and good after-sales service reputation, providing full and uninterrupted after-sales service, to ensure timely and rapid solution to customer problems. The company is recognized as a 5-star brand of market quality cost performance and customer satisfaction by Market Research Center, and rated as "AAA credit enterprise of enterprise credit evaluation", and also a leading steel producer and service provider in the world.