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ASTM T6/UNS T12006 High Speed Tool Steel

SUNS T12006 tungsten series drilling high speed steel has higher red hardness, high temperature hardness and wear resistance than UNS T12006 steel, but lower toughness. After quenching, the surface hardness can reach 64~66HRC, which can be used as turning tools, milling cutters, hobs, etc. for machining materials with hardness above 400HB under complex conditions (heavy load).
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  • ASTM T6/UNS T12006

ASTM T6/UNS T12006 High Speed Tool Steel 


Standard of AISI T6 Tool Steel High Speed

CountryUSA
StandardASTM A600
GradesT6/T12006


ASTM High Speed T6 Steel Chemical Composition Properties

ASTM A600CMnPSSiCrVMoWCo
T6/T120060.750.850.200.400.030.030.200.404.004.751.502.100.401.0018.5021.0011.0013.00


AISI T6 Tool Steels Mechanical Properties

T6 Tool Steel Physical Properties

  • Density (lb/cu. in.) 0.322

  • Specific Gravity 8.89

  • Melting Point (Deg F) 2620

  • Modulus of Elasticity Tension 29


Mechanical Properties of T-6 Tool Steel

Proof strength


Rp0.2
(MPa)

Tensile strength


Rm (MPa)

Impact energy


KV (J)

Elongation at fracture


A (%)

Reduction in cross section on fracture


Z (%)

As-Heat-Treated ConditionBrinell hardness (HBW)
633 (≥)366 (≥)432341Solution and Aging, Annealing, Ausaging, Q+T,etc134


Forging of ASTM T6 High Speed Steel

Forge at 1162℃ down to 1010℃. Do not forge below 982℃.


ASTM T6 High Speed Steel Heat Treatment

Preheat TT steels to 815℃ and then heat rapidly to 1273℃-1287℃ and hold at temperature for 2 to 5 minutes. Quench in air, salt bath, or oil.


Annealing of Steel T-6

Anneal at 885℃ and slow cool in the furnace at a rate less than 4℃ per hour.


Tempering of T6 Steel

Temper T6 at 537℃ to 593℃ for Rockwell C of 65 to 60.


7.Applications of AISI T6 High Speed Steel

AISI T6 high speed steels are mainly used for cutting applications such as drills, milling processes, cutting tools, reamers, etc.

Some typical applications of T6 tool steel are as below:

  • Turning and slotting tools

  • Broaching tools

  • Reamers

  • Threading dies

  • Twist drills

  • Tapes

  • Broaches etc

Together with ASTM T6 tool steel, we could also supply you T-1 steels, T2 steel, T4 tool steel, T5 steels, T15 steel, M2 & M42steel etc. You are welcome to send your requests to us anytime. We are a better choice for you.


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