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ASTM A242 is a kind of high strength low alloy steel with good atmospheric corrosion resistance. Some applications show that it Q500NH Q550NH weather resistant steel price has better corrosion resistance than ASTM A36 steel plate and ASTM a572 50 steel plate. Like weathering steel, it can be used without painting, and corrosion naturally stops and becomes a protective layer.
Manganese is used to deoxidize and remove sulfur in steel when making steel. It is an beneficial element in Q500NH Q550NH weather resistant steel price steel. Manganese has a strong ability to deoxidize and remove sulfur, it can eliminate or reduce the hot brittleness caused by oxygen and sulfur, and improve the strength and hardness of Q500NH Q550NH weather resistant steel price steel.
The weldability of Q500NH Q550NH weather resistant steel price is good. It means that under certain process and construction conditions, Q500NH Q550NH weather resistant steel price can obtain good performance after welding. Weldability is a measure of the hot workability of steel. Weldability can be divided into weldability in construction and weldability in use. Weldability in construction refers to the sensitivity of cracking in weld metal and near seam zone, and hardening sensitivity of steel in near seam zone. Good weldability means that under certain welding process conditions, the weld metal and steel near the seam do not produce cracks. Weldability in use means that the mechanical properties of weld and HAZ steel are not lower than those of base metal.