Grades | Tool Die Steels | M44

ASTM M44

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M44 Application:High-Speed Tool Steel

Chemical composition(mass fraction)(wt.%) of the M44
Elements Min.(≥) Max.(≤) Similar Remarks
C 1.10 1.20
Si 0.30 0.55
Mn 0.20 0.40
P - 0.030
S - 0.030
Cr 4.00 4.75
Mo 6.00 7.00
V 1.85 2.20
W 5.00 5.75
Co 11.00 12.25

Mechanical properties of grade M44

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition HBW
682 (≥) 383 (≥) 12 44 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 413

Physical properties of grade M44

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
676 (≥) 598 (≥) 42 12 12 Solution and Aging, Annealing, Ausaging, Q+T,etc
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
- - -
426 856 993 - - -

M44 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