The Production Methods and Chemical Components of SS Shot
Posted: 06/22/2016 03:16:30  Hits: 29
Stainless steel shot, also known as stainless steel pill, stainless cast round steel wire shot, stainless steel cut wire shot, it is mainly used for shot blasting, sand blasting, shot blasting processing, peen forming, polishing, strengthening, matting, correction, retreat paint, removing the corrosion of surface of aluminum alloy pressure casting and copper alloy.

The production method of stainless steel shot can be divided into two categories. At present, the way by smelting atomizating and cooling to obtain the cast stainless steel shot is recognized as the first type of production method. The second kind making method is stainless steel wire by cutting and throwing circle to get stainless steel shot, stainless cast round steel cut wire shot, stainless steel shot. Stainless steel shot produced by using the second method is named Conditioned Stainless Steel Cut Wire Shot. The passivation on behalf of the cylindrical ends of edges and corners of the throwing circle; stainless steel wire the represents materials; cut shot on behalf of the cut is made. For this, Germany and the international organization for standardization specially formulated product standards corresponding the second method for production: DIN8021-4-1985, SAE AMS 2431/4-1996Conditioned Stainless Steel Cut Wire Shot. Using the unbiased stainless steel cut wire shot, the standards regulate that  the stainless steel shot sphericity of the cylindrical stainless steel cut wire shot after shot blasting passivation should respectively comply with G1, G2 and G3 label said. 

The chemical components of stainless steel shot are as follows:

304 Austenite Type: C<0.25%, Cr =16 ~ 18%, Ni =8 ~ 10%, Si <1%,Mn <2%.

430 Ferrite Type: C <0.25%, Cr = 16 ~ 18%, Si <1%, Mn <1%.

316 Austenite Type: C ≤ 0.08%, CR= 16 ~ 18%, Ni = 10 ~ 14%, SI ≤ 1%, MN ≤ 2.00%, MO = 2 ~ 3%.

Specification: 0.1mm--3.0mm.

Shape: spherical, cylindrical.

Hardness: 240--600HV.

Material:  austenitic stainless steel, ferritic stainless steel, martensitic stainless steel.

Specific gravity: 7.8g/cm3.

Stainless steel shot HS codes are as follows: 1. ball: 7326110000; 2. cylindrical: 7326199000.