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About Stainless Steel
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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
 |
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.
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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 AMS5630 | Magnetic | Mirror Like | 100 | 9529K58 | 00000 | — | ——— | 0 | ||
| 1/16" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 100 | 9529K14 | 0000 | — | ——— | 0 | ||
| 5/64" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 100 | 9529K34 | 0000 | — | ——— | 0 | ||
| 3/32" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 100 | 9529K33 | 0000 | — | ——— | 0 | ||
| 7/64" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 100 | 9529K35 | 0000 | — | ——— | 0 | ||
| 1/8" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 100 | 9529K11 | 0000 | — | ——— | 0 | ||
| 9/64" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 100 | 9529K36 | 0000 | — | ——— | 0 | ||
| 5/32" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 100 | 9529K12 | 0000 | — | ——— | 0 | ||
| 11/64" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290, SAE AMS5630 | Magnetic | Mirror Like | 100 | 9529K59 | 00000 | — | ——— | 0 | ||
| 3/16" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 100 | 9529K13 | 0000 | 5,140 | 9529K131 | 0000000 | ||
| 7/32" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 100 | 9529K44 | 00000 | — | ——— | 0 | ||
| 1/4" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 100 | 9529K15 | 00000 | 2,160 | 9529K151 | 000000 | ||
| 9/32" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 50 | 9529K16 | 00000 | — | ——— | 0 | ||
| 5/16" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 50 | 9529K17 | 00000 | — | ——— | 0 | ||
| 11/32" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 50 | 9529K18 | 00000 | — | ——— | 0 | ||
| 3/8" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 50 | 9529K19 | 00000 | — | ——— | 0 | ||
| 7/16" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 25 | 9529K21 | 00000 | — | ——— | 0 | ||
| 1/2" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 10 | 9529K22 | 0000 | 250 | 9529K221 | 000000 | ||
| 9/16" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 10 | 9529K23 | 0000 | — | ——— | 0 | ||
| 5/8" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 5 | 9529K24 | 00000 | — | ——— | 0 | ||
| 11/16" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 5 | 9529K25 | 00000 | — | ——— | 0 | ||
| 3/4" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 5 | 9529K26 | 00000 | 80 | 9529K261 | 000000 | ||
| 13/16" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 1 | 9529K27 | 0000 | — | ——— | 0 | ||
| 7/8" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 1 | 9529K28 | 0000 | — | ——— | 0 | ||
| 15/16" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 1 | 9529K29 | 0000 | — | ——— | 0 | ||
| 1" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 1 | 9529K31 | 0000 | 30 | 9529K311 | 000000 | ||
| 1 1/16" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 1 | 9529K32 | 00000 | — | ——— | 0 | ||
| 1 1/8" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 1 | 9529K54 | 00000 | — | ——— | 0 | ||
| 1 3/16" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 1 | 9529K55 | 00000 | — | ——— | 0 | ||
| 1 1/4" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 1 | 9529K49 | 00000 | 15 | 9529K491 | 000000 | ||
| 1 3/8" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 1 | 9529K56 | 00000 | — | ——— | 0 | ||
| 1 1/2" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 1 | 9529K51 | 00000 | 10 | 9529K511 | 000000 | ||
| 2" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 1 | 9529K53 | 00000 | — | ——— | 0 | ||
| 3" | -0.0005" to 0.0005" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 1 | 9529K57 | 000000 | — | ——— | 0 | ||
Grade 25 | |||||||||||||
| 1/16" | -0.0001" to 0.0001" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 50 | 9642K21 | 0000 | — | ——— | 0 | ||
| 5/64" | -0.0001" to 0.0001" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 50 | 9642K23 | 0000 | — | ——— | 0 | ||
| 3/32" | -0.0001" to 0.0001" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 50 | 9642K25 | 0000 | — | ——— | 0 | ||
| 1/8" | -0.0001" to 0.0001" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 50 | 9642K29 | 0000 | — | ——— | 0 | ||
| 9/64" | -0.0001" to 0.0001" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 25 | 9642K31 | 0000 | — | ——— | 0 | ||
| 5/32" | -0.0001" to 0.0001" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 50 | 9642K33 | 0000 | — | ——— | 0 | ||
| 3/16" | -0.0001" to 0.0001" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 50 | 9642K35 | 0000 | — | ——— | 0 | ||
| 7/32" | -0.0001" to 0.0001" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 50 | 9642K37 | 0000 | — | ——— | 0 | ||
| 1/4" | -0.0001" to 0.0001" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 50 | 9642K39 | 00000 | — | ——— | 0 | ||
| 9/32" | -0.0001" to 0.0001" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 50 | 9642K43 | 00000 | — | ——— | 0 | ||
| 5/16" | -0.0001" to 0.0001" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 50 | 9642K45 | 00000 | — | ——— | 0 | ||
| 11/32" | -0.0001" to 0.0001" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 25 | 9642K47 | 00000 | — | ——— | 0 | ||
| 3/8" | -0.0001" to 0.0001" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 10 | 9642K49 | 0000 | — | ——— | 0 | ||
| 13/32" | -0.0001" to 0.0001" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 10 | 9642K51 | 00000 | — | ——— | 0 | ||
| 7/16" | -0.0001" to 0.0001" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 10 | 9642K53 | 00000 | — | ——— | 0 | ||
| 1/2" | -0.0001" to 0.0001" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 10 | 9642K57 | 00000 | — | ——— | 0 | ||
| 9/16" | -0.0001" to 0.0001" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 5 | 9642K59 | 00000 | — | ——— | 0 | ||
| 5/8" | -0.0001" to 0.0001" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 5 | 9642K61 | 00000 | — | ——— | 0 | ||
| 11/16" | -0.0001" to 0.0001" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 1 | 9642K62 | 0000 | — | ——— | 0 | ||
| 3/4" | -0.0001" to 0.0001" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 1 | 9642K63 | 0000 | — | ——— | 0 | ||
| 7/8" | -0.0001" to 0.0001" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 1 | 9642K65 | 0000 | — | ——— | 0 | ||
| 1" | -0.0001" to 0.0001" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 1 | 9642K67 | 00000 | — | ——— | 0 | ||
| 1 1/8" | -0.0001" to 0.0001" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 1 | 9642K69 | 00000 | — | ——— | 0 | ||
| 1 1/4" | -0.0001" to 0.0001" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 1 | 9642K71 | 00000 | — | ——— | 0 | ||
| 1 3/8" | -0.0001" to 0.0001" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 1 | 9642K72 | 00000 | — | ——— | 0 | ||
| 1 1/2" | -0.0001" to 0.0001" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 1 | 9642K73 | 00000 | — | ——— | 0 | ||
| 2" | -0.0001" to 0.0001" | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 1 | 9642K74 | 00000 | — | ——— | 0 | ||
| 1 mm | -0.0025 mm to 0.0025 mm | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 250 | 1598K16 | 0000 | — | ——— | 0 | ||
| 1.5 mm | -0.0025 mm to 0.0025 mm | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 250 | 1598K17 | 0000 | — | ——— | 0 | ||
| 2 mm | -0.0025 mm to 0.0025 mm | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 250 | 1598K18 | 0000 | — | ——— | 0 | ||
| 2.5 mm | -0.0025 mm to 0.0025 mm | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 250 | 1598K22 | 00000 | — | ——— | 0 | ||
| 3 mm | -0.0025 mm to 0.0025 mm | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 250 | 1598K23 | 00000 | — | ——— | 0 | ||
| 3.5 mm | -0.0025 mm to 0.0025 mm | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 100 | 1598K24 | 00000 | — | ——— | 0 | ||
| 4 mm | -0.0025 mm to 0.0025 mm | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 50 | 1598K25 | 0000 | — | ——— | 0 | ||
| 5 mm | -0.0025 mm to 0.0025 mm | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 50 | 1598K26 | 0000 | — | ——— | 0 | ||
| 6 mm | -0.0025 mm to 0.0025 mm | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 50 | 1598K27 | 00000 | 2,570 | 1598K271 | 000000 | ||
| 7 mm | -0.0025 mm to 0.0025 mm | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 25 | 1598K28 | 00000 | — | ——— | 0 | ||
| 8 mm | -0.0025 mm to 0.0025 mm | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 25 | 1598K29 | 00000 | — | ——— | 0 | ||
| 10 mm | -0.0025 mm to 0.0025 mm | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 10 | 1598K32 | 00000 | — | ——— | 0 | ||
| 12 mm | -0.0025 mm to 0.0025 mm | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 10 | 1598K33 | 00000 | — | ——— | 0 | ||
| 13 mm | -0.0025 mm to 0.0025 mm | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 5 | 1598K34 | 00000 | — | ——— | 0 | ||
| 14 mm | -0.0025 mm to 0.0025 mm | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 5 | 1598K35 | 00000 | — | ——— | 0 | ||
| 15 mm | -0.0025 mm to 0.0025 mm | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 5 | 1598K36 | 00000 | — | ——— | 0 | ||
| 16 mm | -0.0025 mm to 0.0025 mm | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 3 | 1598K37 | 00000 | — | ——— | 0 | ||
| 18 mm | -0.0025 mm to 0.0025 mm | Rockwell C58 (Extra Hard) | ISO 3290 | Magnetic | Mirror Like | 3 | 1598K38 | 00000 | 95 | 1598K381 | 000000 | ||
Highly Corrosion-Resistant 316 Stainless Steel Balls
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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.
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" | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 100 | 96415K68 | 00000 | — | ——— | 0 | ||
| 3/32" | -0.001" to 0.001" | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 100 | 96415K69 | 0000 | — | ——— | 0 | ||
| 1/8" | -0.001" to 0.001" | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 100 | 96415K71 | 0000 | — | ——— | 0 | ||
| 5/32" | -0.001" to 0.001" | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 100 | 96415K72 | 0000 | — | ——— | 0 | ||
| 3/16" | -0.001" to 0.001" | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 100 | 96415K73 | 0000 | 5,000 | 96415K111 | 0000000 | ||
| 7/32" | -0.001" to 0.001" | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 50 | 96415K74 | 00000 | — | ——— | 0 | ||
| 1/4" | -0.001" to 0.001" | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 50 | 96415K75 | 00000 | 2,125 | 96415K112 | 000000 | ||
| 5/16" | -0.001" to 0.001" | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 25 | 96415K76 | 00000 | — | ——— | 0 | ||
| 3/8" | -0.001" to 0.001" | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 10 | 96415K77 | 0000 | — | ——— | 0 | ||
| 7/16" | -0.001" to 0.001" | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 10 | 96415K78 | 00000 | — | ——— | 0 | ||
| 1/2" | -0.001" to 0.001" | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 5 | 96415K79 | 0000 | 260 | 96415K113 | 000000 | ||
| 9/16" | -0.001" to 0.001" | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 5 | 96415K83 | 00000 | — | ——— | 0 | ||
| 5/8" | -0.001" to 0.001" | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 5 | 96415K84 | 00000 | — | ——— | 0 | ||
| 3/4" | -0.001" to 0.001" | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 1 | 96415K81 | 0000 | 75 | 96415K114 | 000000 | ||
| 7/8" | -0.001" to 0.001" | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 1 | 96415K87 | 00000 | — | ——— | 0 | ||
| 1" | -0.001" to 0.001" | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 1 | 96415K82 | 00000 | — | ——— | 0 | ||
| 1 1/8" | -0.001" to 0.001" | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 1 | 96415K89 | 00000 | — | ——— | 0 | ||
| 1 1/4" | -0.001" to 0.001" | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 1 | 96415K91 | 00000 | — | ——— | 0 | ||
| 1 3/8" | -0.001" to 0.001" | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 1 | 96415K92 | 00000 | — | ——— | 0 | ||
| 1 1/2" | -0.001" to 0.001" | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 1 | 96415K93 | 00000 | — | ——— | 0 | ||
| 2" | -0.001" to 0.001" | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 1 | 96415K94 | 00000 | — | ——— | 0 | ||
| 2.5 mm | -0.013 mm to 0.013 mm | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 250 | 96415K265 | 0000 | — | ——— | 0 | ||
| 3 mm | -0.013 mm to 0.013 mm | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 250 | 96415K54 | 0000 | — | ——— | 0 | ||
| 3.5 mm | -0.013 mm to 0.013 mm | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 100 | 96415K541 | 0000 | — | ——— | 0 | ||
| 4 mm | -0.013 mm to 0.013 mm | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 50 | 96415K57 | 0000 | — | ——— | 0 | ||
| 5 mm | -0.013 mm to 0.013 mm | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 50 | 96415K581 | 0000 | — | ——— | 0 | ||
| 6 mm | -0.013 mm to 0.013 mm | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 50 | 96415K588 | 0000 | — | ——— | 0 | ||
| 7 mm | -0.013 mm to 0.013 mm | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 25 | 96415K637 | 0000 | — | ——— | 0 | ||
| 8 mm | -0.013 mm to 0.013 mm | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 25 | 96415K773 | 00000 | — | ——— | 0 | ||
| 10 mm | -0.013 mm to 0.013 mm | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 10 | 96415K777 | 00000 | — | ——— | 0 | ||
| 12 mm | -0.013 mm to 0.013 mm | Tumbled | Rockwell C25 (Hard) | ISO 3290 | Nonmagnetic | Mirror Like | 10 | 96415K938 | 00000 | — | ——— | 0 | ||
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.
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 Worked | Rockwell C25 (Hard) | ASTM A240, ISO 3290, SAE J405 | Nonmagnetic | Mirror Like | 100 | 9291K41 | 00000 | — | ——— | 0 | ||
| 3/32" | -0.0005" to 0.0005" | Cold Worked | Rockwell C25 (Hard) | ASTM A240, ISO 3290, SAE J405 | Nonmagnetic | Mirror Like | 100 | 9291K42 | 0000 | — | ——— | 0 | ||
| 1/8" | -0.0005" to 0.0005" | Cold Worked | Rockwell C25 (Hard) | ASTM A240, ISO 3290, SAE J405 | Nonmagnetic | Mirror Like | 100 | 9291K43 | 0000 | — | ——— | 0 | ||
| 5/32" | -0.0005" to 0.0005" | Cold Worked | Rockwell C25 (Hard) | ASTM A240, ISO 3290, SAE J405 | Nonmagnetic | Mirror Like | 100 | 9291K44 | 0000 | — | ——— | 0 | ||
| 3/16" | -0.0005" to 0.0005" | Cold Worked | Rockwell C25 (Hard) | ASTM A240, ISO 3290, SAE J405 | Nonmagnetic | Mirror Like | 100 | 9291K45 | 0000 | 4,800 | 9291K451 | 0000000 | ||
| 7/32" | -0.0005" to 0.0005" | Cold Worked | Rockwell C25 (Hard) | ASTM A240, ISO 3290, SAE J405 | Nonmagnetic | Mirror Like | 100 | 9291K46 | 0000 | — | ——— | 0 | ||
| 1/4" | -0.0005" to 0.0005" | Cold Worked | Rockwell C25 (Hard) | ASTM A240, ISO 3290, SAE J405 | Nonmagnetic | Mirror Like | 100 | 9291K47 | 00000 | 2,000 | 9291K471 | 000000 | ||
| 9/32" | -0.0005" to 0.0005" | Cold Worked | Rockwell C25 (Hard) | ASTM A240, ISO 3290, SAE J405 | Nonmagnetic | Mirror Like | 100 | 9291K48 | 00000 | — | ——— | 0 | ||
| 5/16" | -0.0005" to 0.0005" | Cold Worked | Rockwell C25 (Hard) | ASTM A240, ISO 3290, SAE J405 | Nonmagnetic | Mirror Like | 50 | 9291K49 | 00000 | — | ——— | 0 | ||
| 11/32" | -0.0005" to 0.0005" | Cold Worked | Rockwell C25 (Hard) | ASTM A240, ISO 3290, SAE J405 | Nonmagnetic | Mirror Like | 25 | 9291K51 | 00000 | — | ——— | 0 | ||
| 3/8" | -0.0005" to 0.0005" | Cold Worked | Rockwell C25 (Hard) | ASTM A240, ISO 3290, SAE J405 | Nonmagnetic | Mirror Like | 25 | 9291K52 | 00000 | — | ——— | 0 | ||
| 7/16" | -0.0005" to 0.0005" | Cold Worked | Rockwell C25 (Hard) | ASTM A240, ISO 3290, SAE J405 | Nonmagnetic | Mirror Like | 25 | 9291K53 | 00000 | — | ——— | 0 | ||
| 1/2" | -0.0005" to 0.0005" | Cold Worked | Rockwell C25 (Hard) | ASTM A240, ISO 3290, SAE J405 | Nonmagnetic | Mirror Like | 15 | 9291K54 | 00000 | 250 | 9291K541 | 000000 | ||
| 5/8" | -0.0005" to 0.0005" | Cold Worked | Rockwell C25 (Hard) | ASTM A240, ISO 3290, SAE J405 | Nonmagnetic | Mirror Like | 5 | 9291K56 | 00000 | — | ——— | 0 | ||
| 3/4" | -0.0005" to 0.0005" | Cold Worked | Rockwell C25 (Hard) | ASTM A240, ISO 3290, SAE J405 | Nonmagnetic | Mirror Like | 5 | 9291K58 | 00000 | 70 | 9291K581 | 00000 | ||
| 1" | -0.0005" to 0.0005" | Cold Worked | Rockwell C25 (Hard) | ASTM A240, ISO 3290, SAE J405 | Nonmagnetic | Mirror Like | 1 | 9291K63 | 00000 | 30 | 9291K631 | 000000 | ||
| 1 1/4" | -0.001" to 0.001" | Cold Worked | Rockwell C25 (Hard) | ASTM A240, ISO 3290, SAE J405 | Nonmagnetic | Mirror Like | 1 | 9291K65 | 00000 | — | ——— | 0 | ||
| 1 1/2" | -0.001" to 0.001" | Cold Worked | Rockwell C25 (Hard) | ASTM A240, ISO 3290, SAE J405 | Nonmagnetic | Mirror Like | 1 | 9291K67 | 00000 | — | ——— | 0 | ||
| 1 3/4" | -0.001" to 0.001" | Cold Worked | Rockwell C25 (Hard) | ASTM A240, ISO 3290, SAE J405 | Nonmagnetic | Mirror Like | 1 | 9291K69 | 00000 | — | ——— | 0 | ||
| 2" | -0.001" to 0.001" | Cold Worked | Rockwell C25 (Hard) | ASTM A240, ISO 3290, SAE J405 | Nonmagnetic | Mirror Like | 1 | 9291K71 | 00000 | — | ——— | 0 | ||
| 3 mm | -0.0127 mm to 0.0127 mm | Cold Worked | Rockwell C25 (Hard) | ASTM A240, ISO 3290, SAE J405 | Nonmagnetic | Mirror Like | 250 | 9291K73 | 0000 | — | ——— | 0 | ||
| 4 mm | -0.0127 mm to 0.0127 mm | Cold Worked | Rockwell C25 (Hard) | ASTM A240, ISO 3290, SAE J405 | Nonmagnetic | Mirror Like | 50 | 9291K75 | 0000 | — | ——— | 0 | ||
| 5 mm | -0.0127 mm to 0.0127 mm | Cold Worked | Rockwell C25 (Hard) | ASTM A240, ISO 3290, SAE J405 | Nonmagnetic | Mirror Like | 50 | 9291K76 | 0000 | — | ——— | 0 | ||
| 6 mm | -0.0127 mm to 0.0127 mm | Cold Worked | Rockwell C25 (Hard) | ASTM A240, ISO 3290, SAE J405 | Nonmagnetic | Mirror Like | 50 | 9291K77 | 0000 | — | ——— | 0 | ||
| 8 mm | -0.0127 mm to 0.0127 mm | Cold Worked | Rockwell C25 (Hard) | ASTM A240, ISO 3290, SAE J405 | Nonmagnetic | Mirror Like | 25 | 9291K79 | 00000 | — | ——— | 0 | ||
| 10 mm | -0.0127 mm to 0.0127 mm | Cold Worked | Rockwell C25 (Hard) | ASTM A240, ISO 3290, SAE J405 | Nonmagnetic | Mirror Like | 10 | 9291K81 | 0000 | — | ——— | 0 | ||
Abrasive Blasting Media
Stainless Steel Shot
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.
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-763 | 9327K33 | 000000 | ||
Tumbling Media for Magnetic Tumblers
 |
Finish parts inside magnetic tumblers. These pins are made of magnetic stainless steel, so they move around tumblers in a chaotic, scrubbing motion. They’re nonabrasive, so they burnish parts rather than abrade to create a bright finish. They also harden surfaces to resist future tarnish.
Pin—Finish small workpieces with intricate shapes. This media fits into the hardest-to-reach spots of your workpiece, such as inside threads, undercuts, and recessed slots.
Wet Tumbling Condition—Use this media with liquid cleaners.
1 lb. | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Density, lb/ft³ | Recommended Media to Parts Ratio | Abrasion Type | Tumbling Condition | Material | Pkg. | |||
For Polished Finish | ||||||||||
Pin | ||||||||||
| 3/8" | 1/8" | 280 | 3:1 | None | Wet | Stainless Steel | 2252N11 | 000000 | ||
Long-Life Tumbling Media for Steel, Stainless Steel, and Hard Metals
 |
Clipped Ball |
 |
Ballcone |
Made of stainless steel, this media lasts up to 20 times longer than ceramic and porcelain media. Also known as burnishing media, it’s nonabrasive and finishes parts by burnishing rather than abrading. It creates a bright finish and hardens surfaces to resist future tarnish.
Choose the shape that best matches the contours of your part. Mix shapes in different ratios to tailor the finish to your part.
Clipped Ball—For delicate finishing, this media combines surface contact with rolling action.
Ballcone—More aggressive than clipped ball media. The ball hits flat, open surfaces while the cone reaches into small holes, corners, and grooves.
Wet Tumbling Condition—Use this media with liquid cleaners.
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.
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 3290 | Magnetic | Mirror Like | 500 | 9467N11 | 000000 | ||
| 3/16" | -0.0005" to 0.0005" | Rockwell C50 (Hard) | ISO 3290 | Magnetic | Mirror Like | 250 | 9467N12 | 00000 | ||
| 1/4" | -0.0005" to 0.0005" | Rockwell C50 (Hard) | ISO 3290 | Magnetic | Mirror Like | 250 | 9467N13 | 00000 | ||
| 5/16" | -0.0005" to 0.0005" | Rockwell C50 (Hard) | ISO 3290 | Magnetic | Mirror Like | 100 | 9467N14 | 00000 | ||
| 1/2" | -0.0005" to 0.0005" | Rockwell C50 (Hard) | ISO 3290 | Magnetic | Mirror Like | 100 | 9467N15 | 00000 | ||
