Grade 444 Stainless Steel Strip

444 Stainless Steel Strip Chemical Composition

The chemical components of grade 444 stainless steel strip is summarized in the following table:

444 Stainless Steel Strip Mechanical Properties

The mechanical properties of grade 444 stainless steel strip is summarized in the following table:

How To Make 444 Stainless Steel Strips?

1. Raw Materials Preparation

The raw materials of 444 stainless steel mother coils are purchased from China well-known manufacturers, and every batch of goods is said to be genuine.

Each batch of goods has a product quality certificate issued by the origin manufacturer.

Our company will also conduct full inspections on the raw materials sent to the factory, and select raw materials for sampling and use for spectral testing.

The spectral testing can roughly detect the ingredients contained in the raw materials. We will check with the manufacturer’s quality certificate. Make a comparison and confirm that the materials are correct.

Checking details include products thickness tolerance, width of coil, outside packaging, label marks, inside surface finish, chemical components, etc.

We will also save some raw materials and finished products of precision 444 stainless steel strips, and send them to qualified testing institutions on a regular basis, so that the testing institutions can use professional instruments to test our precision stainless steel strips and raw materials.

For full quality control, ensuring that our products are in compliance in every standard of the national technical specifications.

2. Cold Rolling

During this step of the precision 444 stainless steel strips manufacturing process, a cold rolling mill is used to achieve the final desired thickness of the steel strip coil, a machine that also ensures the quality of the good surface finish, the flatness of the strip and the variation of the thickness to match with the international standards.

We have to mention that the twenty-high rolling mill equipment.

Twenty-high rolling mill, including stand, roll system, roll box, pressing device and driving device.

The thickness of the produced stainless steel strip can be up to 0.001mm. The rectangular saddle and the housing are easy to process, the matching accuracy is high, and the lower roll box is easy to adjust and make the rolling line maintain a standard height.

After cold rolling process, we can achieve the super 444 stainless steel strips products with 0.05mm thickness.