About Peening Glass Bead

Glass Bead for Peening

 Glass bead peening is an effective way of increasing the fatigue properties of metal parts and resistance to stress corrosion cracking. Glass beads are very hard and lightweight thus producing a high magnitude layer of residual compressive stress while leaving a smooth surface finish. This is beneficial in many metal fatigue applications where surface finish is concern.

Glass beads are a non-ferrous media and are readily used to peen non-ferrous metals such as aluminum and stainless steel. Glass beads are available in smaller media sizes than traditional steel peening media making them useful on delicate parts with intricate geometry.

Glass beads are chemically inert, recyclable and environmentally friendly. Air nozzle style equipment is the most commonly used means for glass bead peening.

Features:

• Reduce crack spread and corrosion of pieces while increasing lifecycle
• Create a surface layer of compression, controlled thickness, without damaging the surface
• Do not contaminate parts thanks to the chemical neutrality particularly suitable for pieces in stainless steel, titanium, special alloys...
• Obtain the desired level of shot peening without changing the dimension or shape of pieces.

PEENING GLASS BEADS SIZE CHART

NORMAL DIAMETER (85%)

US SIEVE	UM
20-30	800-600
30-40	600-425
40-60	425-250
50-80	300-180
60-100	250-150
70-140	212-106
100-200	150-75
200-325	75-45

 

SPECIFICATION

Sio2 ( Silicon Dioxide)	¥70%
Hardness	¥5.5 Mohs
Density	2.4-2.6g/cm
Roundness	¥85%
Colour	Colourless and transparent with no visible bubbles or impurities
Grain Shape	Round / Spherical
Solubility	Insoluble

 

QUALITY AND TECHNICAL SUPPORT

Efficient results are best achieved through quality media and proper procedures and methods. Accurate size distribution, consistent grain sizes, high percentage of roundness, minimal air inclusions and irregular particles are the qualities you need in Peening Glass Beads media.

The versatility and ease of use in Glass Bead, along with its safety and environmental factors has allowed it to grow into one of the most use Sand Blasting media today.

We also can produce sandblasting beads based on customer special requirements.

Applications and Benefits

Peening Glass Beads are specialized for enhancing metal surfaces without causing dimensional change. Common uses include cleaning, deburring, and stress-relieving metal components via controlled surface peening. The beads offer high impact resistance and a moderate hardness (6 Mohs), ensuring durable performance and efficient finishing. Their clear or slightly hazy appearance reflects their purity and reliable composition, making them suitable across diverse industrial sectors.


Technical Features

Manufactured from soda lime silica glass, these beads feature a high refractive index and customizable grain sizes, ranging from 150 microns to 850 microns. Their spherical shape and free-flowing nature improve surface coverage and uniformity. With a melting point of approximately 730C and a composition rich in SiO2, Na2O, and CaO, they stand out for their non-conductive and non-magnetic properties, ensuring compatibility with various metal-processing environments.