2.381mm 2.5mm 2.8mm 3mm 3.175mm 304 316 420 440C G100 stainless steel ball
We are a professional stainless steel ball manufacturer with 20years ! We have two factory to produce SS balls .
First Factory in Shandong province . Second Factory in Henan province .
SUS440C Stainless steel ball
Material Specification | C | Cr | Mn | Si | P | S | Mo |
0.95-1.20% | 16-18% | 1.0%Max | 1.0%Max | 0.04%Max | 0.03%Max | 0.75%Max |
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Mechancial Properties | Tensile Strength | 285,000 psi |
Yield Strength | 275,000 psi |
Density | 0.277 Ibs/cu in |
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Physical Property | Corrosion resistance | Fair |
Magnetic | Yes |
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Size Range | 0.8mm ( 1/32" ) to 63.5mm ( 2-1/2" ) |
Hardness | HRC ≥ 58 |
Grade | G10 - G1000 |
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Application | Type 440C balls are used in bearings , valves , locking mechanisms , fasteners and quick-disconnect couplings . |
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Material Conversion | ASTM / AISI | YB | JIS | |
440C | 9Cr18Mo | SUS440C | |
SUS420 Stainless steel ball
Material Specification | C | Cr | Mn | Si | P | S | |
0.15-0.36% | 12-14% | 1.0%Max | 1.0%Max | 0.04%Max | 0.03%Max | |
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Mechancial Properties | Tensile Strength | 275,000 psi |
| |
Specific Weight | 0.280 Ibs/cu in |
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Physical Property | Corrosion resistance | Fair |
Magnetic | Yes |
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Size Range | 0.8mm ( 1/32" ) to 63.5mm ( 2-1/2" ) |
Hardness | HRC 50-55 |
Grade | G10 - G1000 |
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Application | Type 420 balls are found in bearings, valves, lighters and writing instruments. |
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Material Conversion | ASTM / AISI | YB | JIS | DIN |
420 | 3Cr13 | SUS420J2 | 1.4028 |
SUS316 Stainless steel ball
Material Specification | C | Cr | Mn | Si | P | S | Mo |
0.08%Max | 16-18% | 2.0%Max | 1.0%Max | 0.045%Max | 0.03%Max | 2-3%Max |
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Mechancial Properties | Tensile Strength | 180,000 psi |
Yield Strength | 150,000 psi |
Density | 0.290 Ibs/cu in |
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Physical Property | Corrosion resistance | Excellent |
Magnetic | No |
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Size Range | 0.8mm ( 1/32" ) to 63.5mm ( 2-1/2" ) |
Hardness | HRC ≤ 26 |
Grade | G100 - G1000 |
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Application | Type 316L balls are used in trigger sprayers, bearings, dispenser valves, body jewelry, lotion pumps, quick-disconnect couplings and aerospace applications. |
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Material Conversion | ASTM / AISI | YB | JIS | DIN |
316 | 0Cr17Ni12Mo2 | SUS316 | 1.4401 |
SUS304 Stainless steel ball
Material Specification | C | Cr | Mn | Si | P | S | Ni |
0.08%Max | 18-20% | 2.0%Max | 1.0%Max | 0.045%Max | 0.03%Max | 8-10% |
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Mechancial Properties | Tensile Strength | 100,000 - 180,000 psi |
Yield Strength | 50,000 - 150,000 psi |
Density | 0.286 Ibs/cu in |
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Physical Property | Corrosion resistance | Good |
Magnetic | Slighty ( Demag process avaibalbe ) |
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Size Range | 0.8mm ( 1/32" ) to 63.5mm ( 2-1/2" ) |
Hardness | HRC ≤ 26 |
Grade | G40 - G1000 |
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Application | Type 304 balls are used in aerosol and dispenser valves , medical applications , animal feeders , trigger sprayers , finger pumps and food processing . |
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Material Conversion | ASTM / AISI | YB | JIS | DIN |
304 | 0Cr19Ni9 | SUS304 | 1.4301 |
Production Line Process :
Heading:
In the first step, heading machines cut wire into short lengths and form it into spherical shapes between dies.
Deflashing:
The flash line, a ridge left by the forming dies, is removed as balls roll between heavy,cast iron plates.
Soft Grinding:
Similar to deflashing, except that a grinding stone is used to improve precision.
Heat-treating:
Carbon steel balls are next carburized and hardened. Heat treatment imparts the desired hardness and case depth.
Descaling:
This step removes the residues and by-products from the heat-treating process.
Hard Grinding:
Slow, meticulous grinding assures proper sizing and sphericity, with tolerances as closeas ±.0001".
Lapping:
Several proprietary lapping processes can bring balls to the requirements of ISO 3290 Grade10 - 48.
Finishing:
Proprietary chemical and mechanical processes give the balls their final micro-smoothed finish, for increased wear resistance and product longevity.
Customers Visit Photos:
Packaging details
Package type : a, Steel drum packing
1) 250 kg per steel drum
2) Four steel drums on one pallet
3) Drum with pallet size: 75*75*65cm
b, Carton package
1) 25 kg per carton , 36 cartons on one pallet
2) Carton size: 30*20*17cm