ResourcesFrequently Asked
Frequently Asked
Questions
Expert answers to common questions about abrasive grades, technical specs, and ordering. Cannot find what you need? Our technical team is ready to help.
01
Product selection
What size steel shot should I use?
Shot size is chosen by workpiece size, scale thickness, and desired surface profile. As a rule of thumb: S110–S230 for small, precision, or thin-walled parts; S280–S390 for general industrial castings and fabrications; S460–S550 for heavy forgings and structural steel. We recommend starting with a trial and comparing Almen intensity and profile depth before committing to a production grade.
What is the difference between shot and grit?
Steel shot is spherical and produces a smooth, peened, dimpled finish — ideal for cleaning, deburring, and shot peening where surface compression is desired. Steel grit is angular and produces an aggressive cutting action with a sharp anchor profile, preferred for descaling, removing mill scale and rust, and preparing surfaces for coating adhesion.
Do you offer custom grades?
Yes. We can produce to custom sieve distributions, hardness ranges, and microstructure requirements for specialized peening and finishing applications. Minimum quantities and lead times apply — contact our technical team with your specification and we will advise on feasibility and pricing.
When should I use cut wire shot instead of cast steel shot?
Cut wire shot is produced from drawn wire and conditioned to a consistent round form. Because each particle has a uniform size and a controlled, defect-free microstructure, it delivers more consistent Almen intensity and longer fatigue life than cast shot. It is the preferred media for critical shot peening of aerospace components, springs, and gears where process documentation is required.
02
Technical specifications
What certifications do you hold?
Our manufacturing operates under an ISO 9001 Quality Management System. Our steel shot and grit conform to SAE J827 (chemical composition and hardness) and SAE J444 (sizing). Cut wire shot conforms to SAE J441. Every shipment is accompanied by a mill test certificate documenting lot number, chemical analysis, hardness, sieve analysis, and microstructure.
What is Almen intensity and how is it measured?
Almen intensity measures the energy of a peening stream by the arc height it induces in a standardized Almen test strip (A, N, or C scale). A flat strip is clamped, peened on one face, then released — the unbalanced compressive stress curves the strip. Arc height at the saturation point is the certified Almen intensity, e.g. 0.012A. Holding intensity within specification guarantees the depth and magnitude of the compressive layer from part to part.
What anchor profiles can your abrasives achieve?
Anchor profile (Rz) depends on grit size, shape, and blast energy. Steel Grit G80/G120 produces 15–30 µm for thin-film primers; G40 produces 40–75 µm for general industrial coatings; G25 and G18 produce 75–125 µm for heavy-duty epoxy and thermal-spray systems. Spherical shot produces shallower dimpled profiles more suited to cleaning than coating anchor.
What is an operating mix and why does it matter?
In a wheel blast machine, fresh abrasive quickly establishes a "operating mix" — a steady-state blend of coarse, medium, and fine particles created as media gradually breaks down under repeated impact. A correctly maintained operating mix delivers consistent surface finish at the lowest media consumption. Abrasive should be replenished in small, regular additions rather than large infrequent top-ups to avoid disrupting the mix.
03
Ordering & delivery
What is your minimum order quantity?
Our standard MOQ is 1 metric ton per grade for domestic orders within India. For export shipments, the practical minimum is one full 20-foot container (approximately 20–25 MT). For sample evaluation and process trials, we can supply smaller lots — contact our sales team to discuss your requirement and we will find a practical solution.
How is the abrasive packaged?
Steel shot and grit are supplied in 25 kg laminated polypropylene bags, 1,000 kg / 1,250 kg jumbo (FIBC) bulk bags, or 250 kg steel drums. All packaging is moisture-resistant and palletised for safe handling. Bulk bags include lifting loops and a discharge spout for direct loading into blast equipment hoppers.
Do you export internationally?
Yes. We export to 50+ countries across Asia, the Middle East, Africa, Europe, and the Americas. We handle full export documentation including commercial invoice, packing list, certificate of origin, mill test certificate, and bill of lading. Shipments are made on FOB, CFR, or CIF Incoterms as required by the buyer.
Can I get a sample before placing a bulk order?
We provide representative production samples with a mill test certificate so your team can validate sieve analysis, hardness, microstructure, and blast performance in your own equipment before committing to a production order. Request a sample through our Contact page and specify the grade, size, and quantity required for your trial.
Still have questions?
Speak directly with our metallurgists
Tell us about your substrate, equipment, and target finish — our team will recommend the right abrasive grade and help you optimise your process.