Is JIS SMA490CW hot rolled weathering steel suitable for laser cutting

As the thickness and hardness of JIS SMA490CW hot rolled weathering steel increase, the tendency to crack at the cutting edge increases. In order to prevent the JIS SMA490CW hot rolled weathering steel from cutting cracks, preheating should be carried out before JIS SMA490CW hot rolled weathering steel cutting. Special attention should be paid to preheating to make the entire JIS SMA490CW hot rolled weathering steel interface evenly heated to avoid local overheating in the area contacting the heat source. If the whole JIS SMA490CW hot rolled weathering steel cannot be preheated, the partial preheating method can be used instead.

JIS SMA490CW hot rolled weathering steel, JIS 3101 SS540 is high strength low alloy steel plate sheet, which is widely used in plants building, general mansions and all kinds of construction machinery, such as mines and various types of drilling rig used in construction, power shovel, electric wheel dump trucks, mining vehicles, excavators, loaders, bulldozers , various types of cranes, hydraulic support, coal mining machinery and equipment and other structures.

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