Grades (AFBMA) / Tolerances for Steel Balls
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| Basic information | |
| AISI Number | AISI1008~AISI1018,AISI1045,AISI1065~AISI1086 |
| Size | 1.0mm----80mm |
| Grade |
G5----G1000
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| Chemical Composition | |||||||
| Item | C% | Si% | Mn% | P% | S% | Density | Hardness |
| AISI 1010 | 0.08~0.13 | 0.30Max | 0.50Max | 0.07Max | 0.06Max | Â 7.861g/cm3Â | HRC 55-63Â Â |
| AISI 1015 | 0.13~0.18 | 0.10~0.30 | 0.30~0.60 | 0.04Max | ********* | ||
| AISI 1045 | 0.43~0.50 | 0.10~0.30 | 0.60~0.90 | 0.04Max | 0.05Max | ||
| AISI 1086 | 0.83~0.88 | 0.10~0.30 | 0.30~0.70 | 0.04Max | 0.04Max | ||
| Item | Name | Material |
| 1 | Stainless Steel Ball | AISI304/304L/316/316L/420/420C/440C |
| 2 | Chrome Steel Ball | AISI 52100/ 100Cr6/ Gcr15/ SUJ2 |
| 3 | Carbon Steel Ball | AISI1010/1015/1086 |
Wire Coil: Steel wire of specific material and size is checked for correctness.
Cutting: The wire is cut into required lengths.
Forging / Heading: Spherical shapes between dies are formed.
Deflashing: The flash line along the circumference is removed.
Heat Treatment: Chrome and bearing steel balls are thorough hardened.Â
Cleaning / Descaling: Basic surface cleaning is done.
Hard Grinding / Filing: An exacting process to achieve required sphericity and size of the steel ball.
Lapping: The final surface finish is acquired through this process.
Polishing / Burnishing: Surface lustre, work hardening, higher product life is achieved.
 Passivation: Carryover iron and other contaminants are removed and a surface film prevents atmospheric and water corrosion on stainless steel balls.
Inspection: For surface finish, size and tolerance.Â
Rust preventive oil: Applied on chrome alloy steel balls to save from rusting and corrosion.
Packing: Done as per requirement in numbers, pieces or by weight. VCI paper or bags are used wherever necessary.
Certificate display
The best steel, pre-tested, is used with modern production, inspection procedures.
Proprietary polishing, lapping processes employed, result in world class finishes.
Strict quality control and inspection at each stage ensures that each steel ball which finally rolls out, conforms to the required quality and specification.
The steel ball are offered in a wide range
Of material compositions in chrome, bearing, inox and stainless steel;
In sizes ranging from 1 mm to 12.7 mm and 3/64" to 1/2" diameters;
And Grade 100 to 2000, which basically denotes the tolerance and surface finish.
| Material | Carbon, Chrome, Stainless |
| Size range | 0.8mm-150mm |
| Grade | G10-1000 |
| Packing | Standard or as customer required |
| Delivery | Stock within a short time or 35 days |
2. Some other question?
Q1. -- If 'I' want small quantity and fast delivery. Which way of shipping is advised ?
A1. -- By express.
Q2. -- How many quantity will be packed in one carton or one pallet ?
A2. -- 20 to 25kg per carton,1 ton per wooden pallet.
Q3. -- What's the lead time ?
A3. -- If in stocks,2-5days;or ,it will take 20-35days,depend on the quantity.
Q4. --Which kind of payment will be accepted ?
A4. -- T/T, L/C, ...
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