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ASTM M1 Details

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M1 Application:High-Speed Tool Steel

Category Type Grade Designations
Grades Tool Die Steels M1 USA - ASTM ,

Chemical composition(wt.%) of M1 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.78 0.88
Si 0.20 0.50
Mn 0.15 0.40
P - 0.030
S - 0.030
Cr 3.50 4.00
Mo 8.20 9.20
V 1.00 1.35
W 1.40 2.10
Co - -
High-Speed Tool Steel

Mechanical properties of grade M1

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)
478 (≥) 273 (≥) 42 22 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 231

Physical properties of grade M1

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
232 (≥) 618 (≥) 44 12 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 432
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
258 872 147

M1 - 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
STSXM15J1 KS Korea
Stainless steel bars
STSXM15J1TB KS Korea
Stainless steel for boiler and heat exchanger tubes
XM15J1 CNS China
Stainless steel wires
M1 ASTM USA
High-Speed Tool Steel
M10 ASTM USA
High-Speed Tool Steel
M10 ASTM USA
High-Speed Tool Steel
M15 SAE USA
High-Speed Tool Steel
X120Mn12, 1.3401, A128, X110Mn14 EN European
X120Mn12, 1.3401, A128, X110Mn14 High-manganese steels with austenitic structure, characterized by high carbon content - on average 1.00-1.20%, and high Manganese content - approx.

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