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The company is a modern enterprise specializing in the research and development, production, supply and marketing of metal abrasives with a limited liability system.
High-carbon steel Grit
Steel sand production implementation standards:
Steel grit, made out of special steel and heat-treated, is angular with sharp edges. It is used for surface preparation before coating/painting, derusting and stone cutting.
Production Standard:
SAE J1993/SAE J444, ISO11124-3, GB/T 18838.3.
specification:
| item |
GP Steel grit |
GL Steel grit |
GH Steel grit |
|
|
Chemical Composition |
C |
0.80 – 1.20% |
||
|
Si |
0.40 – 1.20% |
|||
|
Mn |
0.35 – 1.20% |
|||
|
S |
≤0.05 % MAX |
|||
|
P |
≤0.05 % MAX |
|||
|
Hardness |
HRC40 – 51 |
HRC54 – 60 |
HRC64 – 69 |
|
|
Density |
7.0g/cm3 min. |
|||
|
Microstructure |
Tempered Martensite |
|||
Application range of steel shot and steel sand:
|
Grade |
Hardness (HRc) |
Application |
|
GH |
64~69 |
Surface Preparation before coating/painting of steel plate. Etching |
|
GL |
54~60 |
Desanding Castings, Descaling Castings/Forgings or heat-treated workpieces |
|
GP |
40~51 |
Desanding Castings, Descaling Forgings/heat-treated workpieces and/or steel plate |
Size Distribution:
|
Number of items |
mm |
Specification of Steel Grit mm |
|||||||||
|
2.5 |
2.0 |
1.7 |
1.4 |
1.2 |
1.0 |
0.7 |
0.4 |
0.3 |
0.2 |
||
|
7 |
2.80 |
all pass |
|
|
|
|
|
|
|
|
|
|
8 |
2.36 |
|
all pass |
|
|
|
|
|
|
|
|
|
10 |
2.00 |
80%min |
|
all pass |
|
|
|
|
|
|
|
|
12 |
1.70 |
90%min |
80%min |
|
all pass |
|
|
|
|
|
|
|
13 |
1.40 |
|
90%min |
80%min |
|
all pass |
|
|
|
|
|
|
16 |
1.18 |
|
|
90%min |
75%min |
|
all pass |
|
|
|
|
|
18 |
1.00 |
|
|
|
85%min |
75%min |
|
all pass |
|
|
|
|
20 |
0.850 |
|
|
|
|
|
|
|
|
|
|
|
25 |
0.710 |
|
|
|
|
85%min |
70%min |
|
all pass |
|
|
|
30 |
0.600 |
|
|
|
|
|
|
|
|
|
|
|
35 |
0.500 |
|
|
|
|
|
80%min |
|
|
|
|
|
40 |
0.425 |
|
|
|
|
|
|
70%min |
|
all pass |
|
|
45 |
0.355 |
|
|
|
|
|
|
|
|
|
|
|
50 |
0.300 |
|
|
|
|
|
|
80%min |
65%min |
|
all pass |
|
80 |
0.180 |
|
|
|
|
|
|
|
75%min |
65%min |
|
|
120 |
0.125 |
|
|
|
|
|
|
|
|
75%min |
60%min |
|
200 |
0.075 |
|
|
|
|
|
|
|
|
|
70%min |
|
325 |
0.045 |
|
|
|
|
|
|
|
|
|
|
|
SAE |
G-10 |
G-12 |
G-14 |
G-16 |
G-18 |
G-25 |
G-40 |
G-50 |
G-80 |
G-120 |
|