XH77TЮ(ЭИ437A) Stainless Steels

XH77TЮ(ЭИ437A) - Specification & Application

Russia GOCT standard deformation of high temperature alloy grades and chemical composition

Chemical composition(wt.%) of XH77TЮ(ЭИ437A) grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.06
Si - 0.60
Mn - 0.40
P - 0.015
S - 0.007
Cr 19.00 22.00
Ni - remaining
Mo - -
Al 0.55 0.95
Ti 2.30 2.70
Fe - 1.00
Pb - 0.001
Ce - 0.02

XH77TЮ(ЭИ437A) - Detail

Russia GOCT standard deformation of high temperature alloy grades and chemical composition

Mechanical properties of grade XH77TЮ(ЭИ437A)

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)
977 (≥) 948 (≥) 11 13 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 321

Physical properties of grade XH77TЮ(ЭИ437A)

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
467 (≥) 458 (≥) 23 42 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 131
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
938 237 734

Equivalent Products

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