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Changzhou Huari Steel Ball Co., Ltd is an ISO9001: 2015 and IATF16949: 2016 certified professional manufacturer of steel balls with experience of more than 30 years. We owns more than 500 sets advanced production equipment and more than 100 sets of testing devices to ensure the quality of the steel balls.
Custom service to meet our customers' needs are our core strength.
Sizes & Material
The factory produces ball sizes from 0.5mm to 250mm.
Stainless steel balls: AISI304, 304L, 316, 316L, AISI420, 420C, 440, 440C(G10-G1000) .
| China | Japan | U.S. | Germany | Hardness |
| OCr18Ni9 | SUS304 | AISI304 | 1.4301 | HRC 25-39 |
| 00Cr19Ni10 | SUS304L | AISI304L | 1.4307 | HRC 25-39 |
| 0Cr17Ni12Mo2 | SUS316 | AISI316 | 1.4401 | HRC 25-39 |
| 0Cr19Ni12Mo2 | SUS316L | AISI316L | 1.4404 | HRC 25-39 |
| 3Cr13 | 420J2 | AISI420 | 1.4028 | HRC 48-58 |
| 4Cr13 | - | AISI420C | 1.3541, 1.4034 | HRC52-56 |
| 9Cr18 | - | AISI440 | HRC57-61 | |
| 9Cr18Mo | SUS440C | AISI440C | 1.4125 | HRC58-64 |
| Material | CHEMICAL COMPOSITION % | ||||||||
| C | Si | Mn | P | S | Ni | Cr | Mo | Ti | |
| AISI304 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.03 | 8.0-11.0 | 18-20 | ||
| AISI304L | ≤0.03 | ≤1.0 | ≤2.00 | ≤0.045 | ≤0.03 | 9.0-12.0 | 18-20 | ||
| AISI316 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.035 | ≤0.03 | 10.0-14 | 16.0-18.5 | 2.0-3.0 | |
| AISI316L | ≤0.030 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.03 | 10.0-14 | 16.0-18 | 2.0-3.0 | |
| AISI420(3Cr13) | 0.26-0.35 | ≤1.0 | ≤1.0 | ≤0.04 | ≤0.035 | ≤≤0.60% | 12.0-14.0 | ||
| AISI420C(4Cr13) | 0.36-0.45 | ≤0.60 | ≤0.8 | ≤0.035 | ≤0.03 | ≤0.6 | 12.0-14.0 | ||
| AISI440 (9Cr18) | 0.9-1 | ≤0.8 | ≤0.8 | ≤0.035 | ≤0.80 | ≤0.60 | 17.0-19.0 | ≤0.75 | |
| AISI440C (9Cr18Mo) | 0.9-1 | ≤0.8 | ≤0.8 | ≤0.035 | ≤0.03 | ≤0.60 | 16.0-18.0 | ≤0.75 | |
| Grade: G10 to G1000 | |||||
| Grade | ball diameter | spherical | surface | lot diameter | nomainal ball |
| variation | deviation | roughness | variation | deviation tolerance | |
| Vdws | Sph | Ra | Vdwl | Tdn | |
| not over | |||||
| μm | |||||
| 10 | 0.25 | 0.25 | 0.02 | 0.5 | * |
| 16 | 0.4 | 0.4 | 0.025 | 0.8 | * |
| 20 | 0.5 | 0.5 | 0.032 | 1 | * |
| 24 | 0.6 | 0.6 | 0.04 | 1.2 | * |
| 28 | 0.7 | 0.7 | 0.05 | 1.4 | * |
| 40 | 1 | 1 | 0.06 | 2 | * |
| 60 | 1.5 | 1.5 | 0.08 | 3 | * |
| 100 | 2.5 | 2.5 | 0.1 | 5 | ±12.5 |
| 200 | 5 | 5 | 0.15 | 10 | ±25 |
| 500 | 12.5 | 12.5 | * | 25 | ±50 |
| 1000 | 25 | 25 | * | 50 | ±125 |
Application of stainless steel balls.
AISI304, 304L, 316, 316L: strong anti-rust performance, can be in direct contact with neutral liquids. Special bearings, water pumps, valves, aerosols, dispensers, food machinery, medical, cosmetics and other fields.
AISI420, 420C, 440, 440C: precision bearings, auto parts, bicycles, mixers, slide rails, conveyor belts, skateboards, casters, valves, etc.
♦Bearing ♦Drawer Slide ♦Household Appliances
♦Sprayer ♦Transportation ♦Medical Equipment
1.Q: Can you provide free sample?
Yes, we can offer you free sample when we have them in stock and you just need to pay the shipping fee.
2.Q: What's the terms of payment?
T/T, Trade Assurance order on Alibaba, Western Union or Cash.
3.Q: What the certification do you have?
ISO 9001,IATF 16949,ROHS,SGS,BV.
4.Q: What is the lead time?
Balls in stock could be delivered within 3-5 days once confirmed the order.
For mass order or customized products, it takes about 20-30 days.
5.Q: What's your advantage? Why we choose you?
1) More than 30 years balls manufacture experience.
2) Great production capacity Sustainable Supply. According to customer requirements. We support the customized products including package.
3) Large stock and wide size range.
Tel: 0086-519-81181030*606
Fax: 0086-519-81181083
Address: No.202，Yangjia tou, Nanzhai, Xueyan town, Wujin, Changzhou, China 213178
Contact: Nicky Yang
Mobile: 0086-15995017229
Email: [email protected]
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