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SAE M15 Details

High-Speed Tool Steel

SAE M15 Standard Download

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M15 Application:High-Speed Tool Steel
Category Type Grade Designations
Grades Tool Steels & Die Steels M15 USA - SAE ,
Chemical composition(mass fraction)(wt.%)
Elements Min.(≥) Max.(≤)
C 1.50 1.60
Si 0.20 0.40
Mn 0.10 0.40
Cr 4.00 4.75
Mo 3.00 3.50
V 4.75 5.25
W 6.25 6.75
Co 4.75 5.25
Mechanical properties of grade M15
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)
865 (≥) 597 (≥) 44 42 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 312
Physical properties of grade M15
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
536 (≥) 917 (≥) 14 42 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 214
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
588 967 338
M15 Range of products
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
STSXM15J1 KS Korea
Stainless steel bars
STSXM15J1TB KS Korea
Stainless steel for boiler and heat exchanger tubes
XM15J1 CNS China
Stainless steel wires
M15 SAE USA
High-Speed Tool Steel

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