A. AISI440/440C steel balls1. Material: AISI440/440C 2. Size: 0.8mm 200mm, or as per clients' requirements 3. Grade: ISO G5-G1000, AFBMA G5-G1000, DIN I-VI 4. Hardness: HRC60-62.B. AISI420/AISI420C steel balls 1. Material: AISI420/AISI420C 2. Size: 0.8mm 200mm, or as per clients' requirements 3. Grade: ISO G5-G1000, AFBMA G5-G1000, DIN I-VI 4. Hardness: Around HRC55.C. AISI302/304/304L steel balls 1. Material: AISI302/304/304L 2. Size: 0.8mm -- 200mm, or as per clients' requirements 3. Grade: ISO G100-G1000, AFBMA G100-G1000 4. Hardness: Around HRC30.D. AISI316/316L steel balls 1. Material: AISI316/316L 2. Size: 0.8mm -200mm, or as per clients' requirements 3. Grade: ISO G100-G1000, AFBMA G100-G1000 4. Hardness: Around HRC30.E. AISI430 steel balls1. Material: AISI430 2. Size: 0.8mm -200mm, or as per clients' requirements 3. Grade: ISO G5-G1000, AFBMA G5-G1000, DIN I-VI 4. Hardness: Around HRC60.Feature: Good rust resistance. Excellent surface quality. Application: Machines, bearings, ball screws, linear motion guides, auto parts, chemical and food processing, etc. Packing: Dry packing, plastic bag, carton box (22kg or so), pallet or steel barrelGRADEBall Dia. variationDeviation from spherical form (U)Surface roughness (U)lot Dia. variation (U)Basic Dia. tolerance (U)INCH(U)30.0000030.080.080.0120.13±0.7550.0000050.1250.1250.020.25±1.25100.000010.250.250.0250.5±2.5160.0000160.40.40.0250.8±2.5240.0000240.60.60.051.2±2.5480.0000481.21.20.082.4±51000.00012.52.50.1255±12.52000.0002550.210±255000.000512.512.5-25±5010000.0012525-50±12520005050-100±125