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KaOrK9vS1KVK0CuCcuiQ_Steel A36.jpg
KaOrK9vS1KVK0CuCcuiQ_Steel A36.jpg
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Material type
Material name

Tool steel A3 - Annealed state

Process compatibility
CNC machining
David Nguyen, Mechanical Engineering Lead
AISI A3, is a carbon steel in the Air Hardening Tool Steel category. It is high quality cold work steel that can be oil quanched and tempered. After annealing it can reach hardness of 250HB. Its equivalent grades are: ASTM A681, FED QQ-T-570, UNS T30103.
David Mechanical Engineering Lead at Protolabs Network