SandBlasting Media – Metal – Steel Grit - PT Mitra Utama Lestari Abadi

Steel Grits are made of tempered martensite, with various hardness, excellent resistance, giving less dust, longer recycle life, low cost and are extensively used for cleaning jobs such as castings and other large fabricated parts.

Physical properties :

Density	7.40 g/cc
Hardness Standard	40 – 50 HRC
Metallography Structure	Tempered martensite
Hardness	GH > 61 HRC GL 54 – 61 HRC GP 47 – 56 HRC GN/GS 40 – 51 HRC

Steel Grit Granular Distribution:

SAE		G-10	G-12	G-14	G-16	G-18	G-25	G-40	G-50	G-80
KS – JIS		G-240	G-200	G-170	G-140	G-120	G-100	G-70	G-50	G-30
Sung-Ho		GH-240	GH-200	GH-170	GH-140	GH-120	GH-100	GH-70	GH-50	GH-30
No	Mm	2.40	2.00	1.70	1.40	1.20	1.00	0.70	0.50	0.30
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
14	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	0.85
25	0.71					85% min	70% min		All pass
30	0.60
35	0.50
40	0.425						80% min	70% min		All pass
45	0.355
50	0.300							80% min	65% min
80	0.180								75% min	65% min
120	0.125									75% min

The Application of Steel Grit :

SAE	Applications
G-12 G-14 G-16	Removal of sand or scale from large-medium size castings and forgings. Blasting of steel, billet, steel pallet and heat treatment products
G-18 G-25 G-40	Granite cutting for cleaning casting, cleaning the steel structure (fabrication). Removal of sand or scale from medium – small sized castings and forgings. Blasting of heat treatment products, chain, steel pallets, section of steel, billet and structural steel.
G-50 G-80 G-120	Cleaning non ferrous castings and metal structures (fabrication). Removal of sand or scale from non ferrous or copper alloyed castings and steel structure. Blasting of thin plate and stainless plate.

Steel Grit can also be used for granite cutting. Steel grit material used for granite cutting has higher hardness to increase cutting efficiency, compared normal steel grit materials .