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ASTM H23 Details

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H23 Application:Hot-Work Tool Steel

Category Type Grade Designations
Grades Tool Die Steels H23 USA - ASTM ,

Chemical composition(wt.%) of H23 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.25 0.35
Si 0.15 0.60
Mn 0.15 0.40
P - 0.030
S - 0.030
Cr 11.00 12.75
Mo - -
V 0.75 1.25
W 11.00 12.75
Ni+Cu - 0.75
Hot-Work Tool Steel

Mechanical properties of grade H23

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)
596 (≥) 249 (≥) 31 41 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 323

Physical properties of grade H23

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
637 (≥) 755 (≥) 11 31 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 422
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
991 847 725

H23 - 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
GH2302 GB China
Classification and designation for superalloys and high temperature intermetallic materials
10X11H23T3MP GOST Russia
Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition
H23 ASTM USA
Hot-Work Tool Steel
H23 SAE USA
Hot-Work Tool Steel

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