Ways to solve the defect of 09CuPCrNi-A weathering steel

(1) Adopting a sizing nozzle casting method;
(2) In order to improve the cleanliness of 09CuPCrNi-A weathering steel, 09CuPCrNi-A weathering steel is produced by LF slag refining process desulfurization and deoxidation process, but after LF refining, the Als in steel is higher, in order to avoid nozzle flow, Take a light calcium treatment process.

In order to avoid the occurrence of weathering steel profile blanks, it should be produced by molten steel light calcium treatment + sizing nozzle casting.

The surface longitudinal cracks and joints of 09CuPCrNi-A weathering steel were seriously affected by the quality of the product. The causes of the product were analyzed. The corresponding improvement measures were proposed, including optimizing the chemical composition of the steel and adjusting the speed. Heat, profile cooling process parameters, casting method, etc., the quality of the profiled blank is greatly improved, meeting the needs of 09CuPCrNi-A weathering H-beam production.

At the same time we supply 09CuPCrNi-A weathering steel Chemical Composition and Mechanical Property for your reference:

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