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About Carbon Steel, Alloy Steel, Spring Steel, and Cast Iron
More
Hard Wear-Resistant 52100 Alloy Steel Balls

- Yield Strength: 295,000 psi
- Hardness: Rockwell C60 (Very Hard)
- Specifications Met: See table
Also known as chrome steel, 52100 is an extremely hard and wear-resistant material. These balls are often used in bearings.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
| Dia. | Dia. Tolerance | Heat Treatment | Pkg. Qty. | Pkg. | |
Mirror-Like | |||||
|---|---|---|---|---|---|
| 3 1/4" | -0.0005" to 0.0005" | Hardened | 1 | 00000000 | 0000000 |
Floats for Threaded Rods

Ball Stainless Steel and Copper
Connect these floats to threaded float rods (not included). Use them to replace an existing float or combine with rods and float valve bodies (not included) to build a float valve. All are for use with water.
Stainless steel floats have excellent corrosion resistance and are also for use with oil.
304 Stainless Steel Ball Floats
| Dia. | Thread Size | Thread Type | Max. Pressure, psi | Temp. Range, °F | Gauge | For Container Type | Each | |
| 3 1/4" | 1/4"-20 | UNC | 250 | -30° to 225° | 24 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
316 Stainless Steel Ball Floats
| Dia. | Thread Size | Thread Type | Max. Pressure, psi | Temp. Range, °F | Gauge | For Container Type | Each | |
| 3 1/4" | 1/4"-20 | UNC | 250 | -30° to 225° | 24 ga. | Open Tank, Closed Tank | 0000000 | 000000 |


























