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ASTM M30 Details

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M30 Application:High-Speed Tool Steel

Category Type Grade Designations
Grades Tool Die Steels M30 USA - ASTM ,

Chemical composition(wt.%) of M30 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.75 0.85
Si 0.20 0.45
Mn 0.15 0.40
P - 0.030
S - 0.030
Cr 3.50 4.25
Mo 7.75 9.00
V 1.00 1.40
W 1.30 2.30
Co 4.50 5.50
High-Speed Tool Steel

Mechanical properties of grade M30

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)
213 (≥) 879 (≥) 14 12 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 122

Physical properties of grade M30

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
266 (≥) 396 (≥) 43 13 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 242
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
489 341 343

M30 - 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
M30 ASTM USA
High-Speed Tool Steel

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