A-10 Air Hardening tool Steel
Flats - Rounds - Squares - Hollowbar
Standard Sizes - Non-Standard Sizes - Metric Sizes
Good size stability.
Good Combination of wear resistance and toughness.
Excellent relative machinability.
|
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 catagory.
Applications and technical information require engineers and tool designers to exercise
independent judgement.