Cold-Rolled Stainless-Steel Strip

What is a cold-rolled stainless-steel strip?

The cold-rolled stainless-steel strip is a type of steel material produced by rolling hot-rolled stainless-steel strips at room temperature below the recrystallization temperature. Compared to hot-rolled stainless-steel strips, it has higher dimensional accuracy, lower surface roughness, good surface quality, smoothness, and higher strength.

Applications

Cold-rolled stainless-steel strips in soft states are primarily used in industries related to aerospace, aviation, shipping, automotive, household appliances, stainless steel kitchenware, hardware products, wave springs, sanitary ware, chemicals, petroleum, pipe manufacturing, cable wrapping, medical, bending and folding, machinery and equipment manufacturing, and construction. Cold-rolled stainless-steel strips in the hard state (1/4H, 1/2H, 3/4H, H full hard) are mainly used in the fields of electronics, electrical appliances, computers, high-tech product components, shims, precision machining machinery, hardware stamping parts, spring plates, the IT industry, medical devices, instrumentation, medical, textiles, and other industry sectors.

Technical Parameters

The specifications of cold-rolled stainless-steel strips primarily refer to two main factors: width and thickness. Typically, the thickness falls within the 0.01 to 3.0mm range, and the width varies from approximately 2.0 to 1250mm. The hardness levels can range from 145 to 650HV. Various surface conditions are available, including 2B, BA, 8K, 6K, and mirror finishes.

Technological Characteristics of the Production of Cold-Rolled Stainless-Steel Strips

The production of cold-rolled stainless-steel strapping is not just "cold rolling." Before cold rolling, it also involves processes such as annealing, pickling, and grinding. After cold rolling, it requires leveling, straightening, cutting, stacking, and so on. Therefore, it is actually the entire process from hot-rolled coils to the production of cold-rolled products:

The production process of cold-rolled stainless-steel strapping involves the following technological characteristics:

1. Cold-rolled stainless-steel strapping is produced using rigid and large rolling mills, typically employing multi-Roller cold-rolling mills.
2. When cold-rolling the steel strip on a reversible Rolling Mill, the head and tail portions wrapped on the coiler cannot be pressed down and are cut off as waste. To improve the yield, the ends of the steel strip are welded together before rolling.
3. In the stainless-steel production process, the raw material (hot-rolled coil) undergoes annealing. Intermediate annealing is performed during cold rolling, and the final product undergoes annealing. Annealing is a crucial step in the production process.
4. Various measures are taken throughout production to eliminate and protect against defects. These measures include removing the oxide scale from hot-rolled steel, shot blasting and pickling for hot-rolled steel strips, and often grinding on grinding Machines to eliminate defects introduced by the raw material and those occurring during cold rolling and heat treatment.