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Aluminium Oxide
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Impact Glass Beads
Industrial
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Shot Grit

Steel Grit
Steel Shot
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Steel Grit

Introduction

Medias’ steel shot and grit are specially manufactured in Japan and Korea. Users of Medias abrasives are assured that the abrasives satisfy all performance requirements in terms of efficiency, effectiveness, lanour and cost saving, and longer life.

Medias steel shot and grit are used for
  • Preparing surfaces
  • Cleaning the toughest forgings
  • Etching mill rolls
  • Brightening finishes
  • Specifications

Medias Steel Shot and Grit Specifications

Property size Shot GP GL GH
All materials are screened to meet or exceed SAE and SFS specs.
Chemistry

Carbon, C
Manganese,Mn
Silicon, Si
Sulphur,S
Phosphorus, P

 

0.85-1.20
0.60-1.00
0.50-1.00
less than 0.05
less than 0.05

Ave Hardness (HRc) 40-50 46-50 56-60 63-65
Average Hardness D.

Maximum deviation is ±3.0 HRc. Hardness is tested with a Vickers Microhardness Tester with a Vickers indenterHRc. Hardness is tested with a Vicker Microhardness Tester vith Vickers indenter

Microstructure Highly refined and homogenous tempered martensite and bainite Martensite and retained austenite
Minimum Density
(as determined by displacement of alcohol)
7.4 g/cc 7.6 g/cc 7.6 g/cc 7.6 g/cc

Shot Size Specifications

Screen Opening sizes and screen numbers with max. and min. cumulative percentage allowed on corresponding screens

Grit Size Specifications

Screen Opening sizes and screen numbers with max. and min. cumulative percentage allowed on corresponding screens

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