What is the delivery status of A302GrC steel plate?

A302GrC steel is Manganese-molybdenum-nickel alloy boiler steel plate.The steel of A302 Grade C plate shall be killed and shall conform to fine grain size requirements.

Delivery status of A302GrC steel plate:

a. Steel A302GrC plates with a thickness of less than or equal to 50mm are usually supplied in a rolled state, and can also be supplied in a normalizing, stress relief treatment, or normalizing plus stress relief treatment state.
b. Steel A302GrC plates with a thickness greater than 50mm should be normalized.
c. When normalizing steel plates with a thickness greater than or equal to 100mm, blast or liquid quenching followed by tempering in the temperature range of 595-705℃ can be used to accelerate the cooling to achieve similar normalization to steel plates with a smaller thickness. The mechanical properties.
d. If the purchaser agrees, as long as the steel plate is subsequently tempered in the temperature range of 595-705℃, it is allowed to use a faster cooling rate than in the air for steel plates with a thickness of less than 100mm to change the toughness.

The A302GrC steel plate for vessels must withstand different pressures and strengths due to the manufactured containers, the normal pressure is generally 314MPa or higher, and the working temperature is often between -20°C and 450°C. According to the working conditions and processing requirements of the vessel, the A302GrC plate must have good cold bending and welding properties, good plasticity and toughness, high temperature short-term strength or long-term strength performance, in order to enable the vessel to withstand higher pressure and reduce the structure Due to its own weight, in addition to high-quality carbon steel, low-alloy structural steel is mostly used as the material of steel plate for the container.