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| Sheet and Bar |
Hardness Rating Hardness Rating |
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Magnetic Properties Magnetic Properties |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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Yield Strength Yield Strength |
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Elongation Elongation |
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Minimum Temperature Minimum Temperature |
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Appearance Appearance |
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Fabrication Fabrication |
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Tolerance Rating Tolerance Rating |
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Specifications Met Specifications Met |
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Mechanical Finish Mechanical Finish |
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About Stainless Steel
More
Impact-Resistant 440A Stainless Steel
440A stainless steel resists damage from impact and abrasion.
Sheets are often used for cutlery and valve components. They maintain their corrosion resistance in temperatures up to 1920° F.
Balls are hollow. Use them in floats and ball valves. They maintain their corrosion resistance in temperatures up to 250° F.
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 ACTIVITY after your order ships.
Sheets
- Yield Strength: Not Rated
- Hardness: Rockwell C55 (Very Hard)
- Heat Treatment: Hardened
| Thick. | Thick. Tolerance | Fabrication | Flatness Tolerance | Magnetic Properties | 3" × 6" | 6” × 6” | 6" × 12" | 6" × 24" | |
| 0.015" | -0.001" to 0.001" | Cold Worked | 0.010" per in. | Magnetic | 000000 | ||||
| 0.02" | -0.001" to 0.001" | Cold Worked | 0.010" per in. | Magnetic | 000000 | ||||
| 0.025" | -0.001" to 0.001" | Cold Worked | 0.010" per in. | Magnetic | 000000 | ||||
| 0.031" | -0.001" to 0.001" | Cold Worked | 0.010" per in. | Magnetic | 000000 | ||||
| 0.039" | -0.001" to 0.001" | Cold Worked | 0.010" per in. | Magnetic | 000000 | ||||
| 0.047" | -0.001" to 0.001" | Cold Worked | 0.010" per in. | Magnetic | 000000 | ||||
| 0.062" | -0.001" to 0.001" | Cold Worked | 0.010" per in. | Magnetic | 000000 |
Balls
- Yield Strength: Not Rated
- Hardness: Rockwell C55 (Very Hard)
- Heat Treatment: Hardened
- Specifications Met: SAE AMS-QQ-S-763
| Dia. | Dia. Tolerance | Mechanical Finish | Magnetic Properties | Each | |
Mirror-Like | |||||
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| 1" | -0.005" to 0.005" | Tumbled | Magnetic | 0000000 | 000000 |