T20822 Tool Die Steels

T20822 - Specification & Application

Hot-Work Tool Steel

Chemical composition(wt.%) of T20822 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.30 0.40
Si 0.15 0.40
Mn 0.15 0.40
P - 0.030
S - 0.030
Cr 1.75 3.75
Mo - -
V 0.25 0.50
W 10.00 11.75
Ni+Cu - 0.75

T20822 - Detail

Hot-Work Tool Steel

Mechanical properties of grade T20822

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)
646 (≥) 157 (≥) 21 21 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical properties of grade T20822

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
448 (≥) 839 (≥) 13 34 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 214
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
762 378 853

Equivalent Grade

Equivalent Products

We can customize the production of T20822 grade, contact us for the best solution.
sales@specificsteel.com