T1 Tool Steel High Speed | 1.3355 | HS18-0-1 | SKH2

T1 Tool Steel High Speed | 1.3355 | HS18-0-1 | SKH2

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1.High Speed Steel T1 Tool Steel Mechanical Properties Physical Properties of HSS T-1 Steels Properties Metric Imperial Density 8.67 g/cm3 0.313 lb/in3 Mechanical Properties of T-1 Steel Properties Metric Imperial Hardness, Rockwell C 63.0 – 65.0 63.0 – 65.0 Poisson’s ratio 0.27-0.30 0.27-0.30 Elastic modulus 190-210 GPa 27557-30457 ksi Thermal Properties of T1 Tool Steel Properties Conditions T (°C) Treatment Thermal expansion 9.7 x 10-6/ºC 20-200 more – Th...


  • FOB Price: US $0.5 - 9,999 / Piece
  • Min.Order Quantity: 100 Piece/Pieces
  • Supply Ability: 10000 Piece/Pieces per Month
  • Port: Shenzhen
  • Payment Terms: L/C,D/A,D/P,T/T
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    1.High Speed Steel T1 Tool Steel Mechanical Properties

    • Physical Properties of HSS T-1 Steels
    Properties Metric Imperial
    Density 8.67 g/cm3 0.313 lb/in3
    • Mechanical Properties of T-1 Steel
    Properties Metric Imperial
    Hardness, Rockwell C 63.0 – 65.0 63.0 – 65.0
    Poisson’s ratio 0.27-0.30 0.27-0.30
    Elastic modulus 190-210 GPa 27557-30457 ksi
    • Thermal Properties of T1 Tool Steel
    Properties Conditions
    T (°C) Treatment
    Thermal expansion 9.7 x 10-6/ºC 20-200 more
    Thermal conductivity 19.9 x W/m-K 100 more

    2.Forging of AISI HSS T1 Tool Steel

    1. Preheat T1 high speed steel uniformly and slowly to 850-880°C.
    2. Increase the forging temperature for T-1 tool steel until 1050-1130°C.
    3. T1 hss tool steel should be cooled very slowly after forging.

    3.AISI/ASTM T1 Tool Steel Heat Treatment and Properties

    Treatment Temperature Range Cooling/Quenching Notes
    Forging 1700-2100° F Slow. Cool slowly in dry sand or in other insulating media.
    Annealing 1600-1650° F Cool slowly at a rate of 35° F per hour to 1000° F. For best results, insulating media is desirable. Hold at temperature for 2 hours.
    Stress Relieving 1100-1300° F Cool slowly Stress relieve after rough machining
    Preheating 1500-1550° F Preheat time in furnace is ¾ Hr. per inch of thickness. Heating up to temperature as slow as possible.
    Hardening 2325-2375° F (furnace) Quench in air or warm oil. To minimize quenching strains, quench in salt at 1000° F For maximum wear resistance, harden at 2375° F. For maximum toughness and high hardness, harden at 2275° F.
    2275-2350° F (salt bath)
    Tempering 1022 ° F-1058 ° F Temper T1 high-speed steel immediately after quenching. Hold for at least two hours Double tempering is recommended. The usual tempering time is 2+2 hours. Recommended temperature is 1000-1075° F for cutting tools. 1100-1200° F for shock tools

    4.Applications of ASTM/AISI T1 Tool Steel

    Generally, high speed steels are used for machining at high speeds. HSS T1 steel materials are widely used for:

    • Broaches
    • Drills
    • Hobs
    • Knurling Tools
    • Lathe Tools
    • Milling Cutters
    • Nut Piercers
    • Planer Tools
    • Reamers
    • Shaving Tools
    • Taps
    • Thread Cutting Tools
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