1.2745 Tool Die Steels

1.2745 - Specification & Application

Alloyed NiCr steel

Chemical composition(wt.%) of 1.2745 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.10 0.17
Si 0.20 0.30
Mn 0.30 0.50
P - 0.030
S - 0.030
Cr 0.90 1.20
Mo - -
V - -
Ni 4.20 4.70

1.2745 - Detail

Alloyed NiCr steel

Mechanical properties of grade 1.2745

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)
639 (≥) 419 (≥) 33 42 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 222

Physical properties of grade 1.2745

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
225 (≥) 355 (≥) 32 23 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 243
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
313 337 433

Equivalent Grade

Equivalent Products

We can customize the production of 1.2745 grade, contact us for the best solution.
sales@specificsteel.com