1/2" q355gnh steel grade Hot Rolled Plate China Supplier

We are world class steel q355gnh steel grade materials supplier. We are engaed in providing raw steel materials such as 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 q355gnh steel grade 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 long-term cooperation with you.

The use of low carbon steel is limited due to its low strength. The strength of the carbon steel can be greatly improved by properly increasing the manganese content in the q355gnh steel grade carbon steel and adding some alloy elements such as vanadium, titanium and niobium. If the carbon content in the carbon steel is reduced and a small amount of aluminum, boron and carbide forming elements are added, the ultra-low carbon bainite can be obtained, q355gnh steel grade which has high strength and good plasticity and toughness.

Different form q355gnh steel grade, boiler steel plate is one of the most critical materials in boiler manufacturing. Boiler steel plate mainly refers to the hot-rolled special carbon steel and low alloy heat-resistant steel plate used to manufacture important components such as the shell, drum, header end cover, support and hanger in the boiler. Boiler steel plates are often working under medium, high temperature and high pressure. In addition to withstand higher temperatures and pressures, boiler steel plates are also subject to impact, fatigue loads, and water and gas corrosion, resulting in poor working conditions.

No. 45 steel is commonly used medium carbon quenched and tempered structural steel. The cold plasticity of No. 45 steel is generally better than q355gnh steel grade. Annealing and normalizing are better than quenching and tempering. No. 45 steel has higher strength and better machinability than Q345 steel. After proper heat treatment, it can obtain certain toughness, plasticity and wear resistance. No. 45 steel q355gnh steel grade is suitable for hydrogen welding and argon arc welding, but not suitable for gas welding. Preheating is required before welding, and stress relief annealing shall be conducted after welding.

q355gnh steel grade, Q690C high strength steel structural quality: plate specification(mm) 14*1760*7940, 14*2405*7610, 19.05*2186*12200, 28.58*2171*12000, 40*1500*12000, 20*1820*7700, 60*2400*10500, 22.23*2070*12000, 22.23*2180*12200, 40*1510*12000, 14*1600*7400, 75*1800*3500, 19.05*2150*12000, 28*2170*12000, 20*2200*11900,19*2000*12000, 65*2000*3400, 22.23*2075*12000, 12*1730*7140, 20*2200*10200, 22.23*2170*12200, 59*2950*10000.

Through the operation and management, brand advantage and improve pre-sales, sale of after-sales service, the efforts of the company into the industry leading enterprises.Relying on perfect quality management system, it has built up competition predominance and provided high quality, favorable price and perfect after service for customers.