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ASTM M48 Details

High-Speed Tool Steel

ASTM M48 Standard Download

M48 Datasheet
ASTM M48

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M48 Application:High-Speed Tool Steel
Category Type Grade Designations
Grades Tool Die Steels M48 USA - ASTM ,
Chemical composition(mass fraction)(wt.%)
Elements Min.（≥） Max.（≤） Similar Remarks
C 1.42 1.52
Si 0.15 0.40
Mn 0.15 0.40
P - 0.030
S - 0.070
Cr 3.50 4.00
Mo 4.75 5.50
V 2.75 3.25
W 9.50 10.50
Co 8.00 10.00
Mechanical properties of grade M48
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)
554 (≥) 449 (≥) 13 14 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 331
Physical properties of grade M48
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
593 (≥) 416 (≥) 12 22 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 342
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2
715 376 162
M48 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
M48 ASTM USA
High-Speed Tool Steel