Steel Grit is made by crushing steel shot to angular particle subsequently tempered to different hardness to cater for different application, screened by size according to SAE Standard specification.
SAE | Application |
G-12 G-14 G-16 |
Blasting/descaling medium-to-large cast steel, cast iron, forged pieces,steel plate and rubber adhered work pieces. |
G-18 G-25 G-40 |
Cutting/grinding stone; Blasting rubber adhered work pieces;
Descaling steel plate, container, ship hall before painting; Cleaning small-to-medium cast steel, cast iron, forged pieces, etc. |
G-50 G-80 G-120 |
Blasting/descaling steel wire, spanner, steel pipe before painting process; Cleaning precision castings (eg. golf blocks) |
Products | Steel Grit | |
Chemical Composition% | CR | 1.0-1.5% |
C | 0.8-1.20% | |
Si | 0.4-1.2% | |
Mn | 0.6-1.2% | |
S | ≤0.05% | |
P | ≤0.05% | |
Hardness | steel shot | GP 41-50HRC;GL 50-55HRC;GH 63-68HRC |
Density | steel shot | 7.6g/cm3 |
Micro structure | Martensite structure | |
Appearance | Spherical Hollow particles<5% Crack particle<3% | |
Type | G120,G80,G50,G40,G25,G18,G16,G14,G12,G10 | |
Diameter | 0.2mm,0.3mm,0.5mm,0.7mm,1.0mm,1.2mm,1.4mm,1.6mm,2.0mm,2.5mm | |
Application |
1.Granite cutting 2.Blast cleaning: Used for blast cleaning of casting, die-casting,forging; sand removal of casting, steel plate, H type steel, steel structure. 3..Rust removal: Rust removal of casting, forging, steel plate, H type steel,steel structure. 4.Shot peening: Shot peening of gear, heat treated parts. 5.Shot blasting: Shot blasting of profile steel, ship board, steel board, steel material,steel structure. |
SIZE DISTRIBUTION OF STEEL GRIT | ||||||||||||
Screen No. | In | Screen size | SAE J444 Standard Steel grit | |||||||||
G10 | G12 | G14 | G16 | G18 | G25 | G40 | G50 | G80 | G120 | |||
6 | 0.132 | 3.35 | ||||||||||
7 | 0.111 | 2.8 | All Pass | |||||||||
8 | 0.0937 | 2.36 | All Pass | |||||||||
10 | 0.0787 | 2 | 80% | All Pass | ||||||||
12 | 0.0661 | 1.7 | 90% | 80% | All Pass | |||||||
14 | 0.0555 | 1.4 | 90% | 80% | All Pass | |||||||
16 | 0.0469 | 1.18 | 90% | 75% | All Pass | |||||||
18 | 0.0394 | 1 | 85% | 75% | All Pass | |||||||
20 | 0.0331 | 0.85 | ||||||||||
25 | 0.028 | 0.71 | 85% | 70% | All Pass | |||||||
30 | 0.023 | 0.6 | ||||||||||
35 | 0.0197 | 0.5 | ||||||||||
40 | 0.0165 | 0.425 | 80% | 70%min | All Pass | |||||||
45 | 0.0138 | 0.355 | ||||||||||
50 | 0.0117 | 0.3 | 80%min | 65%min | All Pass | |||||||
80 | 0.007 | 0.18 | 75%min | 65%min | ||||||||
120 | 0.0049 | 0.125 | 75%min | 65%min | ||||||||
200 | 0.0029 | 0.075 | 70%min | |||||||||
GB | 2.5 | 2 | 1.7 | 1.4 | 1.2 | 1 | 0.7 | 0.4 | 0.3 | 0.2 |
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