Methods to improve the toughness of GL-F40 ship building vessel steel

Types of steel plates available: carbon structural steel plate, low-alloy high-strength steel plate, steel plate for bridge, steel plate for building structure, steel plate for shipbuilding and offshore platform, steel plate for boiler and pressure vessel, GL-F40 ship building vessel steel, steel plate for alloy structure, steel plate for oil and gas transmission pipeline, high-strength and high toughness steel plate, corrosion-resistant steel plate, clad steel plate, wear-resistant steel plate and more than 300 domestic and foreign steel grades.

We are world class steel materials supplier. We are engaed in providing raw steel materials such as GL-F40 ship building vessel steel steel plates / steel coils / steel sheets / steel pipes, deep processing and a series project design and solutions to clients. We guarantee to return goods for free for quality problem during its lifetime. Your satisfactory is our permanent pursue. We always welcome advise from clients to make self-improvement continously. And sincerely to build GL-F40 ship building vessel steel long-term cooperation with you.

Tempering the important GL-F40 ship building vessel steel welding structure often use high temperature tempering to remove residual weld stress. Classification: high temperature tempering above 400 ℃, medium temperature tempering 250 ~ 400 ℃, low temperature tempering 150 ~ 250 ℃, Quenching +Tempering is improve GL-F40 ship building vessel steel strength, plasticity and toughness.

Oxygen (O) is a harmful element in steel such as GL-F40 ship building vessel steel. Although manganese, silicon, iron and aluminum are added to deoxidize the steel at the end of steelmaking, they can not be removed completely. During the solidification of molten steel, the reaction of oxygen and carbon in the solution will produce carbon monoxide, which can cause bubbles. Oxygen mainly exists in the form of FeO, MnO, SiO2, Al2O3 and other inclusions in the steel, which reduces the strength and plasticity of the steel. Especially, it has serious influence on fatigue strength and impact toughness.

Due to other non-steel quality reasons caused by the customer dissatisfaction, to timely explain to the customer, and help them solve the problem, for the customer really because of their own reasons, to give patient reply.The process of objection handling is the process of our technical service.