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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 | ||
Multipurpose 304 Stainless Steel Balls
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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 | ||
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.
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 | ||
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 | ||
Highly Corrosion-Resistant 316 Stainless Steel Round Tubes
 |
Fabricate frames, machine enclosures, railing bases, and other components that hold up in highly corrosive environments. One of the most corrosion-resistant types of stainless steel, 316 stands up to the harshest chemicals, including bleach, chlorine, and phosphoric acid. It’s similar in strength and temperature resistance to 304 but is better suited for demanding marine and chemical-processing environments. Use these tubes for structural and ornamental applications that require strength, rigidity, and aesthetics. They should not be used for pressure containment and fluid handling. Compared to rectangular tubing, they resist twisting better and bend more uniformly.
These tubes maintain corrosion resistance in temperatures up to 1500° F.
316/316L Stainless Steel—Dual certified to meet both 316 and 316L requirements. The low carbon content makes this stainless steel easy to weld while maintaining strength and corrosion resistance.
Seamless—Stronger than welded shapes. They have a smooth, uninterrupted surface without stress points from seams. They’re also easy to clean.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
OD | OD Tolerance | ID | Material | Fabrication | Hardness | Specs. Met | 1/2 ft. Long | 1 ft. Long | 2 ft. Long | 4 ft. Long | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0.188" Thick Wall (7 ga.) | |||||||||||||
| 3/4" | -0.005" to 0.005" | 0.374" | 316/316L Stainless Steel | Seamless | Rockwell B80 (Medium) | ASTM A213, ASTM A269, ASTM A511 | 89495K412 | 000000 | 000000 | 000000 | 0000000 | ||
| 1" | -0.005" to 0.005" | 0.624" | 316/316L Stainless Steel | Seamless | Rockwell B80 (Medium) | ASTM A213, ASTM A269, ASTM A511 | 89495K422 | 00000 | 00000 | 000000 | 000000 | ||
1/4" Thick Wall | |||||||||||||
| 1" | -0.005" to 0.005" | 1/2" | 316/316L Stainless Steel | Seamless | Rockwell B80 (Medium) | ASTM A213, ASTM A269, ASTM A511 | 89495K432 | 00000 | 000000 | 000000 | 000000 | ||
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 | ||
