Steel shot is one of the most important blasting materials available on the market.

They are also obtained artificially and have a relevant application as a blasting material.

The main characteristics that give them such importance are:

  • High density – about twice that of aluminum oxide and triple glass beads.
  • Surface hardness.
  • Durability, which compensates for its higher initial cost, and the good quality and uniformity of products manufactured in Brazil and easily purchased in the market.

TYPES OF SHOCK

Spherical Steel Shots (STEEL SHOT)

They are supplied in various specifications.

They are used for the elimination of larger burrs, for some cases of cleaning and finishing and also indispensable for high intensity shot peening. Operating costs are small due to their long service life (300 to 400 cycles) and low abrasion.

Angled Steel Shots (STEEL GRIT)

 

ASTM E 11-70 Sieve No. OPEN OF Sieve (mm) GRANULOMETRIC SPECIFICATION OF SPHERIC GRINDER
SAE S 930 SAE S 780 SAE S 660 SAE S 550 SAE S 460 SAE S 390 SAE S 330 SAE S 280 SAE S 230 SAE S 170 SAE S 110 SAE S 70
6th 3,350 0
7th 2,800 -90% min 0
8th 2,360 97% min 0
10 2,000 85% min 0 0
12 1,700 97% min 85% min 5% max 0
14th 1,400 97% min 85% min 5% max 0
16 1,180 97% min 85% min 5% max 0
18 1,000 96% min 85% min 5% max 0
20 850 96% min 85% min 10% max 0
25 710 96% min 85% min 10% max
30 600 96% min 85% min 0
35 500 97% min 10% max
40 425 85% min 0
45 355 97% min 10% max
50 300 80% min
80 180 90% min 80% min
120 125 90% min

 

ASTM E 11-70 Sieve No. SCREEN OPENING (mm) GRANULOMETRIC SPECIFICATION OF ANGULAR GRILL
SAE G 10 SAE G 12 SAE G 14 SAE G 16 SAE G 18 SAE G 25 SAE G 40 SAE G 50 SAE G 80 SAE G 120
7th 2,800 0
8th 2,360 0
10 2,000 90% min 0
12 1,700 97% min 80% min 0
14th 1,400 90% min 80% min 0
16 1,180 90% min 75% min 0
18 1,000 85% min 75% min 0
25 710 85% min 75% min 0
40 425 80% min 70% min 0
50 300 80% min 65% min 0
80 180 80% min 65% min
120 125 75% min 65% min
200 75 70% min

Roughness

How to define a roughness?

Roughness is the shape of the surface profile (peaks and valleys).

It has a great influence on the adhesion of the coating and its support and must be homogeneous and adapted to the applied coating.

Roughness can be characterized by several parameters:
Click here to download the PDF file with some of the parameters.

  • Phone
    +55 (11) 3388-3534

  • Rua Muniz de Souza, 306
    Aclimação, São Paulo - SP

© Copyright 2019 zirtec by getsource