ASTM T2 High Speed Steel (UNS T12002)

ASTM T2 High Speed Steel (UNS T12002)

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Standard of AISI T2 High Speed Steel Country USA Standard ASTM A600 Grades T2 / T12002 AISI T2 High Speed Steel Chemical Composition Properties ASTM A600 C Mn P S Si Cr V Mo W Co T2 0.80 0.90 0.20 0.40 0.03 0.03 0.20 0.40 3.75 4.50 1.80 2.40 … 1.00 17.50 19.00 … … AISI T2 High Speed Steel Mechanical Properties T2 Tool Steel Physical Properties Properties Metric Imperial Density 7.86 g/cm3 0.284 lb/in3 Mechanical Properties of T2 HSS Tool Steel  Yield Rp0.2 (MP...


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    Standard of AISI T2 High Speed Steel

    Country USA
    Standard ASTM A600
    Grades T2 / T12002

    AISI T2 High Speed Steel Chemical Composition Properties

    ASTM A600 C Mn P S Si Cr V Mo W Co
    T2 0.80 0.90 0.20 0.40 0.03 0.03 0.20 0.40 3.75 4.50 1.80 2.40 1.00 17.50 19.00

    AISI T2 High Speed Steel Mechanical Properties

    • T2 Tool Steel Physical Properties
    Properties Metric Imperial
    Density 7.86 g/cm3 0.284 lb/in3
    • Mechanical Properties of T2 HSS Tool Steel 
    Yield
    Rp0.2
    (MPa)
    Tensile
    Rm
    (MPa)
    Impact
    KV
    (J)
    Elongation
    A (%)
    Reduction in cross section on fracture
    Z (%)
    As-Heat-Treated Condition HBW
    339 (≥) 619 (≥) 11 13 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 234
    • Thermal Properties of T2 Tool Steel
    Properties Metric Imperial
    Thermal expansion co-efficient (@20-260°C/68-500°F) 10.6 µm/m°C 5.89 µin/in°FForging of ASTM T2 High Speed Steel

    Soak AISI T2 tool steel for 1 hour at 2150 F (1177℃) prior to forging.

    Do not work below 1850 F (1010℃). Post-work solution treatment is required prior to final hardening.

    ASTM T2 High Speed Steel Heat Treatment

    Annealing hardness
    HBS
    Cold pull hardness
    HBS
    Preheating temperature
    Quenching temperature
    Holding time
    min
    Hardening medium Temper temperature
    After tempering hardness
    ≥HRC
    salt-bath furnace controlled atmosphere furnace
    235 262 788 1191 1204 5~15 air cooling 522 60

    Applications of ASTM/AISI T2 High Speed Steel

    AISI T2 high speed steel are mainly used in high speed tool and cutting applications such as drills, milling processes, reamers, etc. Some typical applications of T2 tool steel are as below:

    • Turning and slotting tools
    • Broaching tools
    • Reamers
    • Threading dies
    • Twist drills
    • Tapes
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