AISI A6 Air Hardening Tool Steel

Rounds
Moneysaving thins
Machine finished flats FOUR SIDES

DESCRIPTION

An air-hardening tool steel with properties similar to A4 and A5 with lower hardness and higher toughness. Dimensional stability with high hardenability and good impact strength is characteristic of this grade.

ADVANTAGES

Low distortion in heat treatment
High hardenability
Good toughness
Medium wear resistance
Machinability-medium

TYPICAL ANALYSIS

CARBON …………………0.70 MANGANESE ………………...2.00

MOLYBDENUM ………...1.00 CHROMIUM …………………..1.00

HEAT TREATMENT

FORGING ………………………………..1900°F to 2050°F

NORMALIZING ………………………...Do not normalize

ANNEALING ……………………………1350°F to 1375° F

ANNEALED HARDNESS ………………217-248 BHN

PREHEATING ……………………………1200°F – prior to hardening

HARDENING …………………………….1525° – 1600°F, air quench to 150°F

TEMPERING RESULTS

Quenched @ 1550°F.

Tempering Temperatures °F	Hardness Rockwell C
200	61.5
300	60.5
400	59.0
500	57.5
600	56.0
700	54.5
800	52.5
900	50.5
1000	48.5

NOTE: Double temper for maximum impact properties.