Product Name
Stainless steel ball SUS440 SUS440C 7/8'' 22.225mm
$299/set
Online Message
EXW price for one set 1,000pcs
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this price is for retail not include deliver fee .
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Stainless Steel 440C Balls are martensitic and hardened in nature,
the hardness achieved is excellent and also is good wear resistant.
The highest surface finishing and high prcisioncan be manufactured
Applications :
High Precision bearings；Aerospace；Knotting devices；
Oil and Gas Industry；Quick Release Couplings；
Automotive Industry；Pharma Industry
Steel balls have good corrosion resistance and can
withstand oil, petrol, steam and alcohol.
| Material Analysist– SUS440 | Material Analysist– SUS440C | ||
| Carbon | 0.75-0.9% | Carbon | 0.95-1.2% |
| Manganese | Max 1.0% | Manganese | Max 1.5% |
| Phosphorus | Max 0.03% | Phosphorus | Max 0.04% |
| Sulphur | Max 0.040% | Sulphur | Max 0.03% |
| Silicon | Max 1.00% | Silicon | Max 1.00% |
| Chromium | 16.0 to 18.0% | Chromium | 16.00 to 18.0% |
| Nickel | * | Nickel | * |
| Mo | MAX0.75% | Mo | 0.40%-0.80% |
Property | Type | U.o.M. | Values | U.o.M. | Values |
Hardness | Mechanical | [HRC] | 57 - 64 | - | - |
Ultimate tensile strength | Mechanical | [MPa] | 1900 - 2000 | [psix10^3] | 275 - 290 |
Size Range/Grade selection
Balls | 0.8 mm to 25.4 mm | [mm] | GR.10 to GR.100 as per any international standard. |
| SIZE/INCH | SIZE/mm | QYT/CTN | PCS/KG | CTN/KG |
| 0.8 | 2400000 | 2395508 | 5.00 | |
| 1 | 1200000 | 1226500 | 4.89 | |
| 1.500 | 360,000 | 72681.48 | 4.95 | |
| 1/16'' | 1.588 | 300,000 | 61255.64 | 4.90 |
| 1.980 | 150,000 | 31601.08 | 4.75 | |
| 2.000 | 150,000 | 30662.50 | 4.89 | |
| 3/32'' | 2.381 | 90,000 | 18172.70 | 4.95 |
| 2.500 | 80,000 | 15699.20 | 5.10 | |
| 7/64'' | 2.778 | 60,000 | 11441.97 | 5.24 |
| 3 | 180,000 | 9085.19 | 19.81 | |
| 1/8'' | 3.175 | 160,000 | 7664.19 | 20.88 |
| 3.300 | 140,000 | 6825.83 | 20.51 | |
| 3.310 | 140,000 | 6764.16 | 20.80 | |
| 3.5 | 120,000 | 5721.28 | 20.98 | |
| 9/64'' | 3.571 | 100,000 | 5386.76 | 18.56 |
| 5/32'' | 3.969 | 80,000 | 3923.32 | 20.39 |
| 4 | 80,000 | 3832.81 | 20.87 | |
| 4.2 | 60,000 | 3310.93 | 18.12 | |
| 11/64'' | 4.366 | 60,000 | 2947.45 | 20.36 |
| 4.3 | 60,000 | 3085.26 | 19.45 | |
| 4.4 | 60,000 | 2879.65 | 20.84 | |
| 4.5 | 50,000 | 2691.91 | 18.57 | |
| 4.5 | 50,000 | 2691.91 | 18.58 | |
| 4.6 | 50,000 | 2520.14 | 19.84 | |
| 4.7 | 50,000 | 2362.67 | 16.93 | |
| 3/16'' | 4.763 | 40,000 | 2270.16 | 21.16 |
| 4.8 | 40,000 | 2218.06 | 18.03 | |
| 4.9 | 40,000 | 2085.02 | 19.18 | |
| 4.905 | 40,000 | 2078.65 | 19.24 | |
| 4.95 | 40,000 | 2022.47 | 19.78 | |
| 5 | 40,000 | 1962.40 | 20.38 | |
| SIZE/mm | QYT/CTN | PCS/KG | CTN/KG | |
| 5.005 | 40,000 | 1956.52 | 20.44 | |
| 5.05 | 40,000 | 1904.69 | 21.00 | |
| 5.105 | 40,000 | 1843.79 | 21.69 | |
| 5.1 | 40,000 | 1849.21 | 21.63 | |
| 5.2 | 36,000 | 1744.57 | 20.64 | |
| 5.25 | 35,000 | 1695.19 | 20.65 | |
| 5.35 | 32,000 | 1601.90 | 19.98 | |
| 5.45 | 30,000 | 1515.33 | 19.80 | |
| 5.5 | 30,000 | 1474.38 | 20.35 | |
| 5.55 | 30,000 | 1434.89 | 20.91 | |
| 5.556 | 30,000 | 1430.25 | 20.98 | |
| 5.65 | 30,000 | 1360.04 | 22.06 | |
| 5.7 | 26,000 | 1324.56 | 19.63 | |
| 5.75 | 26,000 | 1290.31 | 20.15 | |
| 5.85 | 25,000 | 1225.26 | 20.40 | |
| 5.9 | 24,000 | 1194.38 | 20.09 | |
| 6 | 23,000 | 1135.65 | 20.25 | |
| 6.1 | 22,000 | 1080.71 | 20.36 | |
| 1/4'' | 6.35 | 20,000 | 958.02 | 20.88 |
| 17/64'' | 6.747 | 16,000 | 798.67 | 20.03 |
| 7 | 14,000 | 715.16 | 19.58 | |
| 7.14 | 14,000 | 673.91 | 20.77 | |
| 9/32'' | 7.144 | 14,000 | 672.78 | 20.81 |
| 7.200 | 13,000 | 657.20 | 19.78 | |
| 7.4 | 12,000 | 605.34 | 19.82 | |
| 7.5 | 12,000 | 581.45 | 20.64 | |
| 7.5 | 12,000 | 581.45 | 20.64 | |
| 5/16'' | 7.938 | 10,000 | 490.42 | 20.39 |
| 7.95 | 10,000 | 488.20 | 20.48 | |
| 8 | 10,000 | 479.10 | 20.87 | |
| SIZE/mm | QYT/CTN | PCS/KG | CTN/KG | |
| 8.05 | 10,000 | 470.23 | 21.27 | |
| 8.1 | 10,000 | 461.58 | 21.66 | |
| 8.2 | 9,000 | 444.89 | 20.23 | |
| 8.3 | 8,600 | 429.01 | 20.05 | |
| 11/32'' | 8.731 | 8,000 | 368.56 | 21.71 |
| 9 | 6,800 | 336.49 | 20.21 | |
| 3/8'' | 9.525 | 6,000 | 283.86 | 21.14 |
| 10 | 5,000 | 245.30 | 20.38 | |
| 13/32'' | 10.319 | 4,400 | 223.25 | 19.71 |
| 11 | 3,600 | 184.30 | 19.54 | |
| 7/16'' | 11.1125 | 3,600 | 178.76 | 20.14 |
| 11.5 | 3,200 | 161.29 | 19.84 | |
| 15/32'' | 11.906 | 3,000 | 145.34 | 20.64 |
| 31/64'' | 12.303 | 2600 | 131.72 | 19.74 |
| 1/2'' | 12.700 | 2,400 | 119.75 | 20.04 |
| 17/32'' | 13.494 | 2,000 | 99.83 | 20.04 |
| 9/16'' | 14.288 | 1,600 | 84.10 | 19.03 |
| 19/32'' | 15.081 | 1400 | 71.52 | 19.58 |
| 5/8'' | 15.875 | 1,200 | 61.31 | 19.57 |
| 11/16'' | 17.4625 | 900 | 46.07 | 19.54 |
| 3/4'' | 19.05 | 700 | 35.48 | 19.73 |
| 13/16'' | 20.638 | 500 | 27.91 | 17.92 |
| 7/8'' | 22.225 | 400 | 22.34 | 17.90 |
| 25 | 280 | 15.7 | 17.84 | |
| 1'' | 25.4 | 260 | 14.97 | 17.37 |
