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ASTM H41 Details

Hot-Work Tool Steel

ASTM H41 Standard Download

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H41 Application:Hot-Work Tool Steel
Category Type Grade Designations
Grades Tool Die Steels H41 USA - ASTM ,
Chemical composition(mass fraction)(wt.%)
Elements Min.(≥) Max.(≤) Similar Remarks
C 0.60 0.75
Si 0.20 0.45
Mn 0.15 0.40
P - 0.030
S - 0.030
Cr 3.50 4.00
Mo 8.20 9.20
V 1.00 1.30
W 1.40 2.10
Ni+Cu - 0.75
Mechanical properties of grade H41
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)
828 (≥) 658 (≥) 33 43 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 324
Physical properties of grade H41
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
486 (≥) 215 (≥) 11 43 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 143
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
447 315 953
H41 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
GH4133 GB China
Classification and designation for superalloys and high temperature intermetallic materials
GH4169 GB China
Classification and designation for superalloys and high temperature intermetallic materials
GH4118 GB China
Iron-based superalloy
GH4141 GB China
Iron-based superalloy
GH4145 GB China
Nickel-base superalloy
GH4146 GB China
Nickel-base superalloy
GH4180 GB China
Nickel-base superalloy
H41400 AISI USA
Steel for intake valves
H41 ASTM USA
Hot-Work Tool Steel
H41 SAE USA
Hot-Work Tool Steel