A-10 Air Hardening Tool Steel
A-10 is an air hardening, non-deforming tool steel with outstanding wear resistance and toughness properties. This grade contains uniformly distributed graphitic particles for good machinability and non-seizing characteristics.Analysis:
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C
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CO
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CR
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MN
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MO
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NI
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P
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S
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SI
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V
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W
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| 1.25 - 1.50 | | | 1.60 - 2.10 | 1.25 - 1.75 | 1.55 - 2.05 | | | 1.00 - 1.50 | | |
Size Availability:
Flats • Hollowbar • Metric • Non-Standard • Rounds • Squares • StandardApplications:
| Arbors | Blanking Dies | Forming Rolls |
| Gauges | Punches | Shear Blades |
| Slides | Trimming Dies | |
Designations:
ASTM A681 - US
FED QQ-T-570 - US
AISI A10 Air Hardening Tool Steel - US
| Treatment | Temperature Range | Cooling/Quenching | Notes |
|---|
| Forging | 1900-1950° F | Slow. | Do not forge below 1500° F |
| Annealing | 1450° F | Furnace cool at 10-15° F per hour. Maximum to 1000° F or less, then aircool or furnace cool. | Protect from decarburization by packing in stainless steel foil or use controlled atmosphere furnace. |
| Stress Relieving | 1200-1250° F | Cool slowly | Hold for one hour per inch of thickness with a 2 hour minimum
Stress relieve after rough machining |
| Preheating | 1200-1250° F | | |
| Hardening | 1450-1500° F | Air cool to under 100° F for maximum hardness response | Heat slowly until thoroughly and uniformly heated. Best results are obtained by austenitizing in vacuum or atmosphere furnaces. |
| Tempering | (See Chart) | Air. | Heat slowly to the tempering temperature. Hold for one hour per inch of thickness. 300-500° F is the most widely used range. |
Data is typical and should not be construed as actual values for any category.
Applications and technical information require engineers and tool designers to exercise independent judgement.
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