Products

Metallic
Abrasives

Metallic blast abrasives for robust continuous operation

Metallic abrasives are the economical choice for series applications with high throughputs. Steel shot is ideal for shot peening and surface compaction, angular steel grit delivers aggressive cleaning with long service life. Stainless steel abrasive is a ferrite-free, non-rusting medium – the right choice wherever no iron contamination may be introduced, for example in stainless steel fabrication, food and pharmaceutical industry as well as medical technology. Microbeads AG supplies all common grain sizes and hardness classes.

Chrome and CR/NI blasting media, round/angular

Product information – blasting media

0.05 – 0.2 mm to 1.7 – 3.3 mm

Round stainless steel (Cr-Ni) is well suited for cleaning blasting and shot peening of stainless steels and non-ferrous metals. The material produces a uniform, silky-matt surface finish and is particularly effective on aluminium die-cast components. Its exceptionally long service life combined with low equipment wear makes this rust-free abrasive a highly economical choice.
Angular stainless steel grit (Cr-Grit) represents a cost-effective alternative to iron-free mineral abrasives owing to its outstanding service life. The angular grain geometry enables reliable preparation of stainless materials prior to subsequent surface coating.

Available Grain Sizes

DESIGNATION	GRAIN RANGE (mm)
No. 10	0.05 – 0.20 mm
No. 20	0.10 – 0.30 mm
No. 30	0.15 – 0.40 mm
No. 40	0.40 – 0.80 mm
No. 50	0.60 – 1.00 mm
No. 60	0.70 – 1.20 mm
No. 100	0.80 – 1.70 mm
No. 150	1.20 – 2.30 mm
No. 200	1.70 – 3.30 mm

Chemical Composition – Cr/Ni

CONSTITUENT	SHARE
Cr	16 – 18 %
Ni	8 – 9 %
C	max. 0.3 %
Si	2 %

Chemical Composition – Cr

CONSTITUENT	SHARE
Cr	27 – 30 %
Ni	0 – 2 %
C	max. 0.4 %
Si	2 %

Properties – Cr/Ni

PROPERTY	VALUE
Hardness (new material)	300 HV
Shape	round
Spec. weight	approx. 8.3 kg/l
Bulk weight	approx. 4.5 kg/l

Properties – Cr

PROPERTY	VALUE
Hardness (new material)	450 HV
Shape	irregular round
Spec. weight	approx. 8.3 kg/l
Bulk weight	approx. 4.5 kg/l

Possible Blasting Systems

Blasting system
Pressure blasting machines
Centrifugal wheel blasting machines

Packaging

Supplied in 25 kg bags on pallets (maximum 40 bags per pallet); minimum order quantity from 1 × 25 kg in a carton.

Downloads

Product Information Material Safety Data Sheet (1) Material Safety Data Sheet (2)

Cast steel grit/shot

Product information – blasting media

0.10 – 0.20 mm to 2.00 – 2.80 mm

Angular chilled iron grit is used for de-rusting, descaling, roughening and preparing metallic materials for subsequent coating and painting operations. The sharp fracture edges that form during the blasting process ensure the grit retains its aggressive cutting action over time, resulting in short cycle times and very high abrasive performance.

Available Grain Sizes

GRAIN RANGE (µm)	GRAIN RANGE (µm)
0.10 – 0.20 mm	0.80 – 1.20 mm
0.10 – 0.30 mm	1.00 – 1.40 mm
0.20 – 0.40 mm	1.20 – 1.70 mm
0.30 – 0.60 mm	1.40 – 2.00 mm
0.40 – 0.80 mm	1.70 – 2.24 mm
0.60 – 1.00 mm	2.00 – 2.80 mm

Chemical Composition

CONSTITUENT	SHARE
C	min. 1.7 %
Si	1.00 – 1.50 %
Mn	0.30 – 1.00 %
S	0.07 – 0.17 %
P	0.10 – 0.30 %

Properties

PROPERTY	VALUE
Structure	martensitic/carbidic
Hardness	HV > 650
Spec. weight	approx. 7.00 kg/l
Bulk weight	4.3 – 4.5 kg/dm³

Possible Blasting Systems

Blasting system
Pressure blasting machines
Centrifugal wheel blasting machines (wear protection recommended)

Packaging

Supplied in 25 kg bags on pallets (maximum 40 bags per pallet); minimum order quantity from 1 × 25 kg in a carton. Available loose in big bags on pallets on request.

Downloads

Product Information Material Safety Data Sheet

Cast steel shot

Product information – blasting media

0.12 – 0.42 mm to 2 – 3.4 mm

Round cast steel shot is characterised by extreme toughness and high fracture resistance, making it ideal for the mechanical descaling and de-rusting of iron and steel components at extended service life. The spherical grain shape breaks up and removes scale and rust without roughening the workpiece surface, resulting in a bright metallic finish. Machine wear and maintenance costs for the equipment are significantly lower compared with angular abrasives.

Available Grain Sizes

DESIGNATION	GRAIN RANGE
S 70	0.12 – 0.42 mm
S 110	0.18 – 0.59 mm
S 170	0.35 – 0.84 mm
S 230	0.50 – 1.00 mm
S 280	0.59 – 1.20 mm
S 330	0.71 – 1.40 mm
S 390	0.84 – 1.70 mm
S 460	1.00 – 2.00 mm
S 550	1.20 – 2.00 mm
S 660	1.40 – 2.40 mm
S 780	1.70 – 2.80 mm
S 930	2.00 – 3.40 mm

Chemical Composition

CONSTITUENT	SHARE
C	0.14 – 0.18 %
Si	0.65 – 0.85 %
Mn	0.35 – 0.55 %
S	< 0.015 %
P	< 0.015 %

Properties

PROPERTY	VALUE
Structure	bainitic/martensitic
Hardness (new grain)	HRC 42.7 – 47.7
Hardness (operating mix)	HRC 46.1 – 50.5
Spec. weight	approx. 7.40 kg/l
Bulk weight	approx. 4.30 kg/l

Possible Blasting Systems

Blasting system
Pressure blasting machines
Centrifugal wheel blasting machines

Packaging

Supplied in 25 kg bags on pallets (maximum 40 bags per pallet); minimum order quantity from 1 × 25 kg in a carton. Available loose in big bags on pallets on request.

Downloads

Product Information Material Safety Data Sheet

Cast steel grit

Product information – blasting media

0.04 – 0.18 mm to 1.70 – 2.36 mm

Angular cast steel grit is used for roughening metallic surfaces and cleaning metal components affected by tenacious contamination. Unlike spherical shot, which merely compacts the surface, angular cast steel grit achieves effective material removal. The result is a sharply profiled, rough surface texture that provides an excellent key for subsequent coatings such as paint, powder coating or galvanising. Suitable for use on centrifugal wheel and compressed-air blasting equipment.

Available Grain Sizes

DESIGNATION	GRAIN RANGE
G 200	0.04 – 0.18 mm
G 120	0.07 – 0.30 mm
G 80	0.12 – 0.42 mm
G 50	0.18 – 0.71 mm
G 40	0.30 – 1.00 mm
G 25	0.42 – 1.18 mm
G 18	0.71 – 1.40 mm
G 16	1.00 – 1.70 mm
G 14	1.20 – 2.00 mm
G 12	1.40 – 2.36 mm

Chemical Composition

CONSTITUENT	SHARE
C	0.80 – 1.20 %
Si	min. 0.40 %
Mn	0.35 – 1.20 %
S	max. 0.05 %
P	max. 0.05 %

Properties

PROPERTY	VALUE
Hardness GH	60 + HRC
Hardness GL	54 – 61 HRC
Hardness GM	47 – 56 HRC
Spec. weight	approx. 7.4 kg/dm³
Bulk weight	approx. 4.0 – 4.5 kg/dm³

Possible Blasting Systems

Blasting system
Pressure blasting machines [GH]
Centrifugal wheel blasting machines [GL, GP] (wear protection recommended)

Packaging

Supplied in 25 kg bags on pallets (maximum 40 bags per pallet); minimum order quantity from 1 × 25 kg in a carton. Available loose in big bags on pallets on request.

Downloads

Product Information Material Safety Data Sheet

MetallicAbrasives

Metallic blast abrasives for robust continuous operation

Chrome and CR/NI blasting media, round/angular

Cast steel grit/shot

Cast steel shot

Cast steel grit

Contact

Metallic
Abrasives