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ASTM M33 Details

High-Speed Tool Steel

ASTM M33 Standard Download

M33 Datasheet
ASTM M33

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M33 Application:High-Speed Tool Steel
Category Type Grade Designations
Grades Tool Die Steels M33 USA - ASTM ,
Chemical composition(mass fraction)(wt.%)
Elements Min.（≥） Max.（≤） Similar Remarks
C 0.85 0.92
Si 0.15 0.50
Mn 0.15 0.40
P - 0.030
S - 0.030
Cr 3.50 4.00
Mo 9.00 10.00
V 1.00 1.35
W 1.30 2.10
Co 7.75 8.75
Mechanical properties of grade M33
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)
333 (≥) 189 (≥) 34 14 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 312
Physical properties of grade M33
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
534 (≥) 463 (≥) 41 24 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 412
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2
211 232 234
M33 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
M33 ASTM USA
High-Speed Tool Steel