Steel shot-JUN DA

Steel shot

Steel Shot is manufactured by melting selected scrap in electric induction furnace. The chemical composition of molten metal is analyzed and strictly controlled by spectrometer to obtain SAE Standard specification. The molten metal is atomized and transformed into round particle and subsequently quenched and tempered in a heat treating process to obtain a product of uniform hardness and microstructure, screened by size according to SAE Standard specification.

This type of shot is made for use in shot blasting and blasting processes under pressure by compressed air. It is basically used on non-ferrous metals such as aluminium, zinc alloys, stainless steels, bronze, brass, copper...

With its wide range of gradings, it is used for cleaning, deburring, compaction, shot peening and general finishing processes, on all kinds of parts, without contaminating its surface by ferrous dusts which deteriorate and change the colour of the treated metals. It is ideal for the aging of marbles and granites.

Total quality controls are applied inspecting: grading, grain sphericity, composition and resistance.

Product Detail

Project		National Standards	Quality
Chemical composition%	C	0.85-1.20	0.85-1.0
	Si	0.40-1.20	0.70-1.0
	Mn	0.60-1.20	0.75-1.0
	S	<0.05	<0.030
	P	<0.05	<0.030
Hardness	steel shot	HRC40-50 HRC55-62	HRC44-48 HRC58-62
Density	steel shot	≥7.20 g/cm3	7.4g/cm3
Microstructure		Tempered Martensite or Troostite	Tempered Martensite Bainite Composite organization
Appearance		Spherical Hollow particles<10% Crack particle<15%	Spherical Hollow particles<5% Crack particle<10%
Type		S70 ,S110, S170, S230, S280, S330, S390, S460, S550, S660, S780
Packing		Each ton in a separate Pallet and each ton divided in 25KG packs .
Durability		2500~2800 times
Density		7.4g/cm3
.Diameter		0.2mm,0.3mm,0.5mm,0.6mm,0.8mm,1.0mm,1.2mm,1.4mm,1.7mm,2.0mm,2.5mm
Applications		1.Blast cleaning: Used for blast cleaning of casting, die-casting, forging; sand removal of casting, steel plate, H type steel, steel structure. 2..Rust removal: Rust removal of casting, forging, steel plate, H type steel, steel structure. 3.Shot peening: Shot peening of gear, heat treated parts. 4.Shot blasting: Shot blasting of profile steel, ship board, steel board, steel material,steel structure. 5.Pre-treatment: Pre-treatment of surface, steel board, profile steel, steel structure, before painting or coating.

Steel shot distribution

SIZE DISTRIBUTION OF STEEL SHOT
SAE J444 Standard Steel shot												Screen No.	In	Screen size
S930	S780	S660	S550	S460	S390	S330	S280	S230	S170	S110	S70	Screen No.	In	Screen size
ALL pass												6	0.132	3.35
	All Pass											7	0.111	2.8
90% min		All Pass										8	0.0937	2.36
97%min	85%min		All Pass	All Pass								10	0.0787	2
	97%min	85%min		5% max	All Pass							12	0.0661	1.7
		97%min	85%min		5% max	All Pass						14	0.0555	1.4
			97%min	85%min		5% max	All Pass					16	0.0469	1.18
				96%min	85%min		5% max	All Pass				18	0.0394	1
					96%min	85%min		10% max	All Pass			20	0.0331	0.85
						96%min	85%min		10% max			25	0.028	0.71
							96%min	85%min		All Pass		30	0.023	0.6
								97%min		10% max		35	0.0197	0.5
									85%min		All Pass	40	0.0165	0.425
									97%min		10% max	45	0.0138	0.355
										85%min		50	0.0117	0.3
										90%min	85%min	80	0.007	0.18
											90%min	120	0.0049	0.125
												200	0.0029	0.075
2.8	2.5	2	1.7	1.4	1.2	1	0.8	0.6	0.4	0.3	0.2	GB