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ASTM T1 Details

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T1 Application:High-Speed Tool Steel

Category Type Grade Designations
Grades Tool Die Steels T1 USA - ASTM ,

Chemical composition(wt.%) of T1 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.65 0.80
Si 0.20 0.40
Mn 0.10 0.40
P - 0.030
S - 0.030
Cr 3.75 4.50
Mo - -
V 0.90 1.30
W 17.25 18.75
Co - -
High-Speed Tool Steel

Mechanical properties of grade T1

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 Condition Brinell hardness (HBW)
981 (≥) 121 (≥) 14 13 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

Physical properties of grade T1

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
191 (≥) 724 (≥) 13 24 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 213
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
158 652 269

T1 - Form of Supply

Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED

Cross Reference Table(Equivalent Grade)

Grade Standard Country Application
EVl0 UNS USA
Steel for exhaust valves
Z3CAT18 AFNOR France
Iron and steel. Stainless steel for high temperature application
Z3CDT18-02 AFNOR France
Stainless steels for general purposes. Plates, wide strips and strips
Z3CT12 AFNOR France
Iron and steel. Stainless steel for high temperature application
Z4CT17 AFNOR France
Iron and steel. Stainless steel for high temperature application
Z6CNDT17-12 AFNOR France
Iron and steel. Austenitic and austenic-ferritic stainless steels plates for boilers and pressure vessels
Z6CNDT17-12F AFNOR France
General purpose forgings. Stainless steels
TUZ6CNDT17-12 AFNOR France
Steel tubes. Seamless plain end tubes for pipes-lines and other uses. Ferritic and austenitic stainless steels. Dimensions. Technical delivery conditions
Z6CNT18-10 AFNOR France
Non alloy and alloy steel bolting for pressure equipement - Specifications
Z6CNT18-10B AFNOR France
Iron and steel. Stainless steel for high temperature application
Z6CNT18-10F AFNOR France
General purpose forgings. Stainless steels
TUZ6CNT18-10 AFNOR France
Steel pipes. Seamless pipes for furnaces. Austenitic stainless steels. Dimensions (with normal or reduced tolerances). Technical delivery conditions
TSZ6CNT18-10 AFNOR France
Steel tubes. Tubes welded longitudinally for heat exchangers. Austenitic stainless steels. Dimensions. Technical delivery conditions
Z8CNT12 AFNOR France
Stainless steels for general purposes. Plates, wide strips and strips
Z3CDFT18-02 AFNOR France
Iron and steel. Stainless steel for general purposes. Semi- finished products, bars and wire rod
Z4CNDAT13-09 AFNOR France
Medico-surgical equipment - Materials for ancillary positioning instruments for surgical instrument - Martensitic, precipitation hardening, austenitic and austeno-ferritic stainless steels
Z6CNDT17-13B AFNOR France
Iron and steel. Stainless steel for high temperature application
Z10CNWT17-13B AFNOR France
Steel tubes. Seamless austenitic steel tubes for use at high temperatures. Dimensions (with normal tolerances). Technical conditions of delivery
TUZ10CNWT17-13B AFNOR France
Steel tubes. Seamless austenitic steel tubes for use at high temperatures. Dimensions (with normal tolerances). Technical conditions of delivery
Z8CNDT17.13B AFNOR France
Steel tubes. Seamless austenitic steel tubes for use at high temperatures. Dimensions (with normal tolerances). Technical conditions of delivery

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