Steel Shot

Steel Shot is exceptionally durable due to its low friability, and the impact of blasting further tempers and hardens the shot over time, which allows Steel Shot to deliver consistent, repeatable performance over thousands of cycles. Steel Shot is used for heavy scouring and to produce very bright finishes.

Chemical Composition

• C: 0.85 - 1.2%
• Si: 0.4 - 1.2%
• Mn: 0.62 - 1.2%
• S: ≤ 0.05%
• P: ≤ 0.05%

Physical Properties

• Specific Gravity (h40 = 1): ≥ 7.20
• Hardness: 40 - 50 HRC
• Microstructure: Homogeneous tempered Martensite or Troosite
• External Form: Round (with deformity < 10%)

Grits Available

• S70, S110, S130, S170, S230, S280, S330, S390, S460, S550, S660, S780, S930
• Other sizes available on request

Applications

• Surface Preparation: Steel Shot is used to clean metal surfaces by removing mill scale, dirt, rust, or paint coatings, and to physically modify metal surfaces, such as roughening them to improve adhesion of paints and coatings. Steel Shot is used in shot blasting machines, such as to profile concrete prior to installation of resinous flooring systems, and in blasting chambers, for example, to clean automotive parts such as motor blocks and cylinder heads.
• Shot Peening: Shot peening is the process of repeatedly striking a metal surface with hard spherical materials such as Steel Shot, in order to compress the metal surface, which can reduce metal fatigue and extend the durability and service life of metal parts. Spherical Steel Shot is ideal for this application because it is highly resistant to fracture upon impact.