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    160 Products
    About Stainless Steel
    industrial info icon

    Compare over 25 types of stainless steel to find the right material for you—all with material certificates for traceability.

    Hardened Ultra-Wear-Resistant 440C Stainless Steel Balls

    Image of Product. Front orientation. Stainless Steel. Hardened Ultra-Wear-Resistant 440C Stainless Steel Balls.
    The best choice for high-performance bearings and valves, these 440C stainless steel balls are among the strongest, hardest, and most wear-resistant we offer. They’re passivated to wash away surface particles that cause rust, and they’re polished to a mirror-like finish that contaminants can’t stick to. The result is balls that stay smooth and stand the test of time—even at temperatures up to 800° F. They’re made to strict ISO 3290 standards for roundness and surface quality.
    These balls are magnetic, so you can use them in separators, sensors, and automated handling systems that use magnetic pickup or positioning.
    Grade 100—Great for mechanical applications where you don’t need the exacting tolerances of Grade 25.
    Grade 25—Precision-ground to tighter tolerances than Grade 100 balls. Use them in high-accuracy assemblies.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Stainless
    Steel Balls
    5 lb. Packs of
    Stainless Steel Balls
    Dia.
    Dia. Tolerance
    Hardness
    Specs. Met
    Magnetic
    Properties
    Appearance
    Pkg.
    Qty.
    Pkg.
    Pkg.
    Qty.
    Pkg.
    Grade 100
    3/64"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290, SAE AMS5630MagneticMirror Like1009529K5800000———0
    1/16"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like1009529K140000———0
    5/64"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like1009529K340000———0
    3/32"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like1009529K330000———0
    7/64"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like1009529K350000———0
    1/8"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like1009529K110000———0
    9/64"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like1009529K360000———0
    5/32"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like1009529K120000———0
    11/64"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290, SAE AMS5630MagneticMirror Like1009529K5900000———0
    3/16"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like1009529K1300005,1409529K1310000000
    7/32"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like1009529K4400000———0
    1/4"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like1009529K15000002,1609529K151000000
    9/32"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like509529K1600000———0
    5/16"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like509529K1700000———0
    11/32"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like509529K1800000———0
    3/8"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like509529K1900000———0
    7/16"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like259529K2100000———0
    1/2"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like109529K2200002509529K221000000
    9/16"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like109529K230000———0
    5/8"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like59529K2400000———0
    11/16"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like59529K2500000———0
    3/4"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like59529K2600000809529K261000000
    13/16"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like19529K270000———0
    7/8"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like19529K280000———0
    15/16"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like19529K290000———0
    1"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like19529K310000309529K311000000
    1 1/16"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like19529K3200000———0
    1 1/8"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like19529K5400000———0
    1 3/16"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like19529K5500000———0
    1 1/4"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like19529K4900000159529K491000000
    1 3/8"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like19529K5600000———0
    1 1/2"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like19529K5100000109529K511000000
    2"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like19529K5300000———0
    3"-0.0005" to 0.0005"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like19529K57000000———0
    1 mm-0.0127 mm to 0.0127 mmRockwell C58 (Extra Hard)ISO 3290MagneticMirror Like2501598K160000———0
    1.5 mm-0.0127 mm to 0.0127 mmRockwell C58 (Extra Hard)ISO 3290MagneticMirror Like2501598K170000———0
    2 mm-0.0127 mm to 0.0127 mmRockwell C58 (Extra Hard)ISO 3290MagneticMirror Like2501598K180000———0
    2.5 mm-0.0127 mm to 0.0127 mmRockwell C58 (Extra Hard)ISO 3290MagneticMirror Like2501598K2200000———0
    3 mm-0.0127 mm to 0.0127 mmRockwell C58 (Extra Hard)ISO 3290MagneticMirror Like2501598K2300000———0
    5 mm-0.0127 mm to 0.0127 mmRockwell C58 (Extra Hard)ISO 3290MagneticMirror Like501598K260000———0
    10 mm-0.0127 mm to 0.0127 mmRockwell C58 (Extra Hard)ISO 3290MagneticMirror Like101598K3200000———0
     
    Grade 25
    1/16"-0.0001" to 0.0001"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like509642K210000———0
    5/64"-0.0001" to 0.0001"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like509642K230000———0
    3/32"-0.0001" to 0.0001"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like509642K250000———0
    1/8"-0.0001" to 0.0001"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like509642K290000———0
    9/64"-0.0001" to 0.0001"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like259642K310000———0
    5/32"-0.0001" to 0.0001"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like509642K330000———0
    3/16"-0.0001" to 0.0001"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like509642K350000———0
    7/32"-0.0001" to 0.0001"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like509642K370000———0
    1/4"-0.0001" to 0.0001"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like509642K3900000———0
    9/32"-0.0001" to 0.0001"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like509642K4300000———0
    5/16"-0.0001" to 0.0001"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like509642K4500000———0
    11/32"-0.0001" to 0.0001"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like259642K4700000———0
    3/8"-0.0001" to 0.0001"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like109642K490000———0
    13/32"-0.0001" to 0.0001"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like109642K5100000———0
    7/16"-0.0001" to 0.0001"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like109642K5300000———0
    1/2"-0.0001" to 0.0001"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like109642K5700000———0
    9/16"-0.0001" to 0.0001"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like59642K5900000———0
    5/8"-0.0001" to 0.0001"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like59642K6100000———0
    11/16"-0.0001" to 0.0001"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like19642K620000———0
    3/4"-0.0001" to 0.0001"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like19642K630000———0
    7/8"-0.0001" to 0.0001"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like19642K650000———0
    1"-0.0001" to 0.0001"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like19642K6700000———0
    1 1/8"-0.0001" to 0.0001"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like19642K6900000———0
    1 1/4"-0.0001" to 0.0001"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like19642K7100000———0
    1 3/8"-0.0001" to 0.0001"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like19642K7200000———0
    1 1/2"-0.0001" to 0.0001"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like19642K7300000———0
    2"-0.0001" to 0.0001"Rockwell C58 (Extra Hard)ISO 3290MagneticMirror Like19642K7400000———0
    3.5 mm-0.0025 mm to 0.0025 mmRockwell C58 (Extra Hard)ISO 3290MagneticMirror Like1001598K2400000———0
    4 mm-0.0025 mm to 0.0025 mmRockwell C58 (Extra Hard)ISO 3290MagneticMirror Like501598K250000———0
    6 mm-0.0025 mm to 0.0025 mmRockwell C58 (Extra Hard)ISO 3290MagneticMirror Like501598K27000002,5701598K271000000
    7 mm-0.0025 mm to 0.0025 mmRockwell C58 (Extra Hard)ISO 3290MagneticMirror Like251598K2800000———0
    8 mm-0.0025 mm to 0.0025 mmRockwell C58 (Extra Hard)ISO 3290MagneticMirror Like251598K2900000———0
    12 mm-0.0025 mm to 0.0025 mmRockwell C58 (Extra Hard)ISO 3290MagneticMirror Like101598K3300000———0
    13 mm-0.0025 mm to 0.0025 mmRockwell C58 (Extra Hard)ISO 3290MagneticMirror Like51598K3400000———0
    14 mm-0.0025 mm to 0.0025 mmRockwell C58 (Extra Hard)ISO 3290MagneticMirror Like51598K3500000———0
    15 mm-0.0025 mm to 0.0025 mmRockwell C58 (Extra Hard)ISO 3290MagneticMirror Like51598K3600000———0
    16 mm-0.0025 mm to 0.0025 mmRockwell C58 (Extra Hard)ISO 3290MagneticMirror Like31598K3700000———0
    18 mm-0.0025 mm to 0.0025 mmRockwell C58 (Extra Hard)ISO 3290MagneticMirror Like31598K3800000951598K381000000
     

    Multipurpose 304 Stainless Steel Balls

    Image of Product. Front orientation. Stainless Steel. Multipurpose 304 Stainless Steel Balls.
    Whether inside pumps or furnace parts, these balls can be used in any mildly corrosive, high-temperature conditions. Made of 304 stainless steel, they won’t degrade when exposed to mild chemicals and water, even at temperatures up to 1500° F. They’re passivated to wash away surface particles that cause rust, and they’re polished to a mirror-like finish that contaminants can’t stick to. The result is balls that stay smooth and stand the test of time. These balls are made to strict ISO 3290 standards for roundness and surface quality.
    Although 304 balls aren’t as wear resistant as 440C balls, they’re easier to fabricate. They’re also nonmagnetic.
    Grade 100—Great for mechanical applications where you don’t need the exacting tolerances of Grade 25.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Stainless
    Steel Balls
    5 lb. Packs of
    Stainless Steel Balls
    Dia.
    Dia. Tolerance
    Fabrication
    Hardness
    Specs. Met
    Magnetic
    Properties
    Appearance
    Pkg.
    Qty.
    Pkg.
    Pkg.
    Qty.
    Pkg.
    Grade 100
    1/16"-0.0005" to 0.0005"Cold WorkedRockwell C25 (Hard)ASTM A240, ISO 3290, SAE J405NonmagneticMirror Like1009291K4100000———0
    3/32"-0.0005" to 0.0005"Cold WorkedRockwell C25 (Hard)ASTM A240, ISO 3290, SAE J405NonmagneticMirror Like1009291K420000———0
    1/8"-0.0005" to 0.0005"Cold WorkedRockwell C25 (Hard)ASTM A240, ISO 3290, SAE J405NonmagneticMirror Like1009291K430000———0
    5/32"-0.0005" to 0.0005"Cold WorkedRockwell C25 (Hard)ASTM A240, ISO 3290, SAE J405NonmagneticMirror Like1009291K440000———0
    3/16"-0.0005" to 0.0005"Cold WorkedRockwell C25 (Hard)ASTM A240, ISO 3290, SAE J405NonmagneticMirror Like1009291K4500004,8009291K4510000000
    7/32"-0.0005" to 0.0005"Cold WorkedRockwell C25 (Hard)ASTM A240, ISO 3290, SAE J405NonmagneticMirror Like1009291K460000———0
    1/4"-0.0005" to 0.0005"Cold WorkedRockwell C25 (Hard)ASTM A240, ISO 3290, SAE J405NonmagneticMirror Like1009291K47000002,0009291K471000000
    9/32"-0.0005" to 0.0005"Cold WorkedRockwell C25 (Hard)ASTM A240, ISO 3290, SAE J405NonmagneticMirror Like1009291K4800000———0
    5/16"-0.0005" to 0.0005"Cold WorkedRockwell C25 (Hard)ASTM A240, ISO 3290, SAE J405NonmagneticMirror Like509291K4900000———0
    11/32"-0.0005" to 0.0005"Cold WorkedRockwell C25 (Hard)ASTM A240, ISO 3290, SAE J405NonmagneticMirror Like259291K5100000———0
    3/8"-0.0005" to 0.0005"Cold WorkedRockwell C25 (Hard)ASTM A240, ISO 3290, SAE J405NonmagneticMirror Like259291K5200000———0
    7/16"-0.0005" to 0.0005"Cold WorkedRockwell C25 (Hard)ASTM A240, ISO 3290, SAE J405NonmagneticMirror Like259291K5300000———0
    1/2"-0.0005" to 0.0005"Cold WorkedRockwell C25 (Hard)ASTM A240, ISO 3290, SAE J405NonmagneticMirror Like159291K54000002509291K541000000
    5/8"-0.0005" to 0.0005"Cold WorkedRockwell C25 (Hard)ASTM A240, ISO 3290, SAE J405NonmagneticMirror Like59291K5600000———0
    3/4"-0.0005" to 0.0005"Cold WorkedRockwell C25 (Hard)ASTM A240, ISO 3290, SAE J405NonmagneticMirror Like59291K5800000709291K58100000
    1"-0.0005" to 0.0005"Cold WorkedRockwell C25 (Hard)ASTM A240, ISO 3290, SAE J405NonmagneticMirror Like19291K6300000309291K631000000
    1 1/4"-0.001" to 0.001"Cold WorkedRockwell C25 (Hard)ASTM A240, ISO 3290, SAE J405NonmagneticMirror Like19291K6500000———0
    1 1/2"-0.001" to 0.001"Cold WorkedRockwell C25 (Hard)ASTM A240, ISO 3290, SAE J405NonmagneticMirror Like19291K6700000———0
    1 3/4"-0.001" to 0.001"Cold WorkedRockwell C25 (Hard)ASTM A240, ISO 3290, SAE J405NonmagneticMirror Like19291K6900000———0
    2"-0.001" to 0.001"Cold WorkedRockwell C25 (Hard)ASTM A240, ISO 3290, SAE J405NonmagneticMirror Like19291K7100000———0
    3 mm-0.0127 mm to 0.0127 mmCold WorkedRockwell C25 (Hard)ASTM A240, ISO 3290, SAE J405NonmagneticMirror Like2509291K730000———0
    4 mm-0.0127 mm to 0.0127 mmCold WorkedRockwell C25 (Hard)ASTM A240, ISO 3290, SAE J405NonmagneticMirror Like509291K750000———0
    5 mm-0.0127 mm to 0.0127 mmCold WorkedRockwell C25 (Hard)ASTM A240, ISO 3290, SAE J405NonmagneticMirror Like509291K760000———0
    6 mm-0.0127 mm to 0.0127 mmCold WorkedRockwell C25 (Hard)ASTM A240, ISO 3290, SAE J405NonmagneticMirror Like509291K770000———0
    8 mm-0.0127 mm to 0.0127 mmCold WorkedRockwell C25 (Hard)ASTM A240, ISO 3290, SAE J405NonmagneticMirror Like259291K7900000———0
    10 mm-0.0127 mm to 0.0127 mmCold WorkedRockwell C25 (Hard)ASTM A240, ISO 3290, SAE J405NonmagneticMirror Like109291K810000———0
     

    Highly Corrosion-Resistant 316 Stainless Steel Balls

    Image of Product. Front orientation. Stainless Steel. Highly Corrosion-Resistant 316 Stainless Steel Balls.
    Trusted in marine and chemical-processing valves, these balls stand up to some of the most highly corrosive environments. Made of 316 stainless steel, they hold up to sulfuric acid, chlorine, and other harsh chemicals in temperatures as high as 1500° F. They’re a step up from balls made of 304, which have similar strength and temperature performance. They’re passivated to wash away surface particles that cause rust, and they’re polished to a mirror-like finish that contaminants can’t stick to. The result is balls that stay smooth and stand the test of time. They’re made to strict ISO 3290 standards for roundness and surface quality.
    Although 316 balls aren’t as wear resistant as 440C balls, they’re easier to fabricate. They’re also nonmagnetic.
    Grade 100—Great for mechanical applications where you don’t need the exacting tolerances of Grade 25.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Stainless
    Steel Balls
    5 lb. Packs of
    Stainless Steel Balls
    Dia.
    Dia. Tolerance
    Mechanical
    Finish
    Hardness
    Specs.
    Met
    Magnetic
    Properties
    Appearance
    Pkg.
    Qty.
    Pkg.
    Pkg.
    Qty.
    Pkg.
    Grade 100
    1/16"-0.001" to 0.001"TumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like10096415K6800000———0
    3/32"-0.001" to 0.001"TumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like10096415K690000———0
    1/8"-0.001" to 0.001"TumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like10096415K710000———0
    5/32"-0.001" to 0.001"TumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like10096415K720000———0
    3/16"-0.001" to 0.001"TumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like10096415K7300005,00096415K1110000000
    7/32"-0.001" to 0.001"TumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like5096415K7400000———0
    1/4"-0.001" to 0.001"TumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like5096415K75000002,12596415K112000000
    5/16"-0.001" to 0.001"TumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like2596415K7600000———0
    3/8"-0.001" to 0.001"TumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like1096415K770000———0
    7/16"-0.001" to 0.001"TumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like1096415K7800000———0
    1/2"-0.001" to 0.001"TumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like596415K79000026096415K113000000
    9/16"-0.001" to 0.001"TumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like596415K8300000———0
    5/8"-0.001" to 0.001"TumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like596415K8400000———0
    3/4"-0.001" to 0.001"TumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like196415K8100007596415K114000000
    7/8"-0.001" to 0.001"TumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like196415K8700000———0
    1"-0.001" to 0.001"TumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like196415K8200000———0
    1 1/8"-0.001" to 0.001"TumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like196415K8900000———0
    1 1/4"-0.001" to 0.001"TumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like196415K9100000———0
    1 3/8"-0.001" to 0.001"TumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like196415K9200000———0
    1 1/2"-0.001" to 0.001"TumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like196415K9300000———0
    2"-0.001" to 0.001"TumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like196415K9400000———0
    2.5 mm-0.013 mm to 0.013 mmTumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like25096415K2650000———0
    3 mm-0.013 mm to 0.013 mmTumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like25096415K540000———0
    3.5 mm-0.013 mm to 0.013 mmTumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like10096415K5410000———0
    4 mm-0.013 mm to 0.013 mmTumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like5096415K570000———0
    5 mm-0.013 mm to 0.013 mmTumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like5096415K5810000———0
    6 mm-0.013 mm to 0.013 mmTumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like5096415K5880000———0
    7 mm-0.013 mm to 0.013 mmTumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like2596415K6370000———0
    8 mm-0.013 mm to 0.013 mmTumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like2596415K77300000———0
    10 mm-0.013 mm to 0.013 mmTumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like1096415K77700000———0
    12 mm-0.013 mm to 0.013 mmTumbledRockwell C25 (Hard)ISO 3290NonmagneticMirror Like1096415K93800000———0
     

    Hollow 440A Stainless Steel Balls

    Image of Product. Front orientation. Stainless Steel. Hollow 440A Stainless Steel Balls.
    These lightweight balls are often used in floats, valves, and other parts to regulate liquid level and flow. Made of 440A stainless steel, they resist impact and corrosion in temperatures up to 250° F. Their polished surface prevents contaminants from sticking to them.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Dia.
    Dia. Tolerance
    Wall
    Thk.
    Hardness
    Specs. Met
    Each
    Hardened 440A Stainless Steel
    1"-0.005" to 0.005"0.054"Rockwell C55 (Extra Hard)SAE AMS-QQ-S-7639327K33000000
     

    Hardened Highly Wear-Resistant 420 Stainless Steel Balls

    Image of Product. Front orientation. Stainless Steel. Hardened Highly Wear-Resistant 420 Stainless Steel Balls.
    Often used for bearings, detents, and locking mechanisms, these 420 stainless steel balls balance hardness with corrosion resistance. They resist corrosion better than 440C, but they’re slightly softer, so they wear more quickly. They’re passivated to wash away surface particles that cause rust, and they’re polished to a mirror-like finish that contaminants can’t stick to. The result is balls that stay smooth and stand the test of time—even at temperatures up to 750° F. They’re made to strict ISO 3290 standards for roundness and surface quality.
    These balls are magnetic, so you can use them in separators, sensors, and automated handling systems that use magnetic pickup or positioning.
    Grade 100—Great for mechanical applications where you don’t need the exacting tolerances of Grade 25.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Stainless
    Steel Balls
    Dia.
    Dia. Tolerance
    Hardness
    Specs.
    Met
    Magnetic
    Properties
    Appearance
    Pkg.
    Qty.
    Pkg.
    Grade 100
    1/8"-0.0005" to 0.0005"Rockwell C50 (Hard)ISO 3290MagneticMirror Like5009467N11000000
    3/16"-0.0005" to 0.0005"Rockwell C50 (Hard)ISO 3290MagneticMirror Like2509467N1200000
    1/4"-0.0005" to 0.0005"Rockwell C50 (Hard)ISO 3290MagneticMirror Like2509467N1300000
    5/16"-0.0005" to 0.0005"Rockwell C50 (Hard)ISO 3290MagneticMirror Like1009467N1400000
    1/2"-0.0005" to 0.0005"Rockwell C50 (Hard)ISO 3290MagneticMirror Like1009467N1500000
     
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