Carbon steel balls are an economical alternative to through-hardened precision balls. They provide reliable performance for less expensive anti-friction bearings, steering columns, casters, conveyors and trolleys, roller skates, toys, and drawer slides. Besides, they can be used in anything from furniture castors to sliding rails, polishing and milling machines, peening processes, and welding appliances depending on the type of carbon steel balls you choose.
Our carbon steel balls come in three varieties: unhardened carbon steel balls, low carbon steel balls with heat treatment, and high carbon balls. Each variety has its properties, so choose one that matches your requirements.
Carbon steel balls: AISI1010/ AISI1015/ C15/ 1.0413/ JIS SWRM 12/ EN32 ASTM A/29 AISI1086/ C85/ 1.0616/ EN8-9/ Wks 1.1269
Application of carbon steel balls: furniture rails and wheels, drawer bearings, low-quality rolling bearings, locks, oiling machines and lubricators, pulleys, castors, trolleys, toys, roller conveyors, polishing, welding (only softballs can be used).
| Grade: G10 to G1000 |
| Grade |
ball diameter |
spherical |
surface |
lot diameter |
nominal ball |
| variation |
deviation |
roughness |
variation |
deviation tolerance |
| Views |
Sph |
Ra |
Vdwl |
Ten |
| 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 |
| China |
Japan |
U.S. |
Germany |
| Q195 |
S10C |
AISI1010-1015 |
1.1121-1.1141 |
| Q235(A,B,C,D) |
S15C |
| 45# |
S45C |
AISI1045 |
|
| 82B |
SWRH87B |
AISI1085 |
1.0616 |
| Low Carbon Steel Ball |
| 1. Material |
AISI1010/ AISI1015/ C15/ 1.0413/ JIS SWRM 12/ EN32 ASTM A/29 |
| 2. Size Range |
1mm-180mm |
| 3. Grade |
G40-1000 |
| 4. Hardness |
60 min. HRC (Surface-hardened) |
| 5. Characteristic |
(a)Casehardened surface balls and low-hardness core |
| (b)superficial hardness |
| (c)Low resistance to corrosive attack |
| 6. Magnetic |
Yes |
| 7. Application |
Low-quality bearing, oiler, roller, sliding block… |
| 8. Chemical composition |
| |
C% |
Si% |
Mn% |
Cr% |
Ni% |
Mo% |
P% |
S% |
Al% |
Cu% |
| min. |
0.12 |
--- |
0.3 |
--- |
--- |
--- |
--- |
--- |
--- |
--- |
| max. |
0.17 |
0.3 |
0.6 |
0.2 |
0.25 |
0.05 |
0.035 |
0.035 |
0.01 |
0.3 |
| 9. Packing |
Standard: 10kg or 20kg per carton,1 ton per pallet, or as the customer required |
| 10. Conditioning |
dry or oiled |
| 11. Delivery time |
Stock within a short time or 35 days. |
| High Carbon Steel Ball |
| 1. Material |
AISI1086/ C85/ 1.0616/ EN8-9/ Wks 1.1269 |
| 2. Size Range |
1mm-180mm |
| 3. Grade |
G40-1000 |
| 4. Hardness |
60 min. HRC (Through-hardened) |
| 5. Characteristic |
(a)Core-hardened |
| (b)Low resistance to corrosive attack |
| (c)Higher Load and longer life than low-carbon steel ball |
| 6. Magnetic |
Yes |
| 7. Application |
Low-quality bearings, bicycles |
| 8. Chemical composition |
| |
C% |
Si% |
Mn% |
Cr% |
Ni% |
Mo% |
P% |
S% |
Al% |
Cu% |
| min. |
0.83 |
0.1 |
0.5 |
--- |
--- |
--- |
--- |
--- |
--- |
--- |
| max. |
0.88 |
0.3 |
0.8 |
0.15 |
0.2 |
0.05 |
0.035 |
0.035 |
0.01 |
0.25 |
| 9. Packing |
Standard: 10kg or 20kg per carton,1 ton per pallet, or as the customer required |
| 10. Conditioning |
dry or oiled |
| 11. Delivery time |
Stock within a short time or 35 days. |
| Soft Carbon Steel Balls |
| 1. Material |
AISI1010/ AISI1015/ C15/ 1.0413/ JIS SWRM 12/ EN32 ASTM A/29 |
| 2. Size Range |
1mm-180mm |
| 3. Grade |
G40-1000 |
| 5. Characteristic |
(a)Casehardened surface balls and low hardness core |
| (b)superficial hardness |
| (c)Low resistance to corrosive attack |
| 6. Magnetic |
Yes |
| 7. Application |
Polished, welded. |
| 8. Chemical composition |
| |
C% |
Si% |
Mn% |
Cr% |
Ni% |
Mo% |
P% |
S% |
Al% |
Cu% |
| min. |
0.12 |
--- |
0.3 |
--- |
--- |
--- |
--- |
--- |
--- |
--- |
| max. |
0.17 |
0.3 |
0.6 |
0.2 |
0.25 |
0.05 |
0.035 |
0.035 |
0.01 |
0.3 |
| 9. Packing |
Standard: 10kg or 20kg per carton,1 ton per pallet, or as the customer required |
| 10. Conditioning |
dry or oiled |
| 11. Delivery time |
Stock within a short time or 35 days. |
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