AISI Type A3 Tool Steel

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AISI Type A3 Tool Steel
Categories:	Metal; Ferrous Metal; Tool Steel; Air-Hardening Steel; Cold Work Steel
Material Notes:	High hardenability, high degree of dimensional stability in heat treatment, good wear resistance, fatigue life, toughness, and deep hardening qualities. Applications include cold forming, blanking and bending dies, forming rolls, drill bushings, knurling tools, master dies and gages.
Key Words:	AISI Medium-Alloy, Air-Hardening Tool Steels A3, UNS T30103, ASTM A681, FED QQ-T-570
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Physical Properties	Original Value	Comments

Density	7.86 g/cc	(A2)

Mechanical Properties	Original Value	Comments
Bulk Modulus	160 GPa	Typical for steels.
Machinability	65 %	Based on Carbon tool steel.
Shear Modulus	80.0 GPa	Typical for steels.

Component Elements Properties	Original Value	Comments
Carbon, C	1.2 - 1.3 %
Chromium, Cr	4.75 - 5.5 %
Iron, Fe	89.2 - 91.9 %	As Balance
Manganese, Mn	0.40 - 0.60 %
Molybdenum, Mo	0.90 - 1.4 %
Phosphorus, P	<= 0.030 %
Silicon, Si	<= 0.50 %
Sulfur, S	<= 0.030 %
Vanadium, V	0.80 - 1.4 %

References for this datasheet.

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MSTA3A / 14096

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