The Difference Between Alloy Steel Shot, Grit And Ordinary Steel Shot, Grit

- Jan 04, 2018 -

Steel shot is a commonly used metal workpiece processing materials, the use of steel shos to deal with the surface of metal parts with cleaning speed characteristics, steel balls and grit have the appropriate hardness, with good rebound. But steel balls, grit are all alloy and ordinary points. Let us work together to understand the alloy steel balls, steel and ordinary steel balls, grit What are the differences:

First, the material is different: alloy steel shots, grit steel is the choice of bearing steel (100CrMo7) scraps, and ordinary steel balls, grit selection of ordinary scrap.

Second, the heat treatment process and equipment is different: Alloy steel shot, steel annealing RJT-800KW annealing furnace, isothermal quenching heating using RJX-60-9 box furnace, isothermal quenching with 2730 × 1100 × 930 (mm ) Of the salt bath, while the ordinary steel balls, steel sand heat treatment are used 900 × 900KW drum furnace, but also for air-cooled.

Third, the chemical composition of different: 100CrMo7 steel balls, grit chemical composition (W,%)

100CrMo7 steel shot, grit chemical composition (W,%)

Element Name C Si Mn P S Cr Mo Ni Cu

Prescribed Component 0.9-1.5 0.2-0.4 0.25-0.45 <0.015 <0.015 1.69-1.95 0.15-0.25 <0.3 <0.03

Analytical composition 0.97 0.28 0.30 0.006 0.008 1.79 0.22 0.16 0.17

Ordinary steel balls, grit chemical composition (%)

Element Name C Si Mn P S

  • Steel Grits G10
  • Steel Shot S70
  • Cut Wire Shot
  • Steel Cut Wire Shot 1.2mm
  • Bearing Steel Grit GH25
  • Bearing Steel Grit GP14

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