T20824 Tool Die Steels

T20824 - Specification & Application

Hot-Work Tool Steel

Chemical composition(wt.%) of T20824 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.42 0.53
Si 0.15 0.40
Mn 0.15 0.40
P - 0.030
S - 0.030
Cr 2.50 3.50
Mo - -
V 0.40 0.60
W 14.00 16.00
Ni+Cu - 0.75

T20824 - Detail

Hot-Work Tool Steel

Mechanical properties of grade T20824

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)
699 (≥) 734 (≥) 14 11 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 134

Physical properties of grade T20824

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
278 (≥) 664 (≥) 13 14 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 234
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
229 919 112

Equivalent Grade

Equivalent Products

We can customize the production of T20824 grade, contact us for the best solution.
sales@specificsteel.com