Production technology of SA737 grade C steel plate

SA737 grade C steel plate smelting process: open hearth, oxygen blowing converter or electric furnace. The steel shall be killed and meet the requirements for fine austenite grain size in the A20/A20M standard.

The SA737 gr C steel material is heated to an appropriate temperature for normalizing to form an austenite structure, but the temperature should not exceed 925, and it should be maintained at this temperature for a sufficient time to make the entire material uniformly heated, and then cooled in air.

If the buyer agrees, in order to improve the strength or toughness, the cooling rate is allowed to be faster than air cooling, but then the SA737 grade C steel plate must be tempered in the range of 95-705.