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XH77TЮ(ЭИ437A) Application:Russia COST standard deformation of high temperature alloy
Category Type Steel grade Standard Country
Grades Special Alloy XH77TЮ(ЭИ437A) ГОСТ Russia

Chemical composition % of the ladle analysis of grade XH77TЮ(ЭИ437A)

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Pb(%) Al(%) Ti(%) Other(%)
Max 0.06 Max 0.60 Max 0.40 Max 0.015 Max 0.007 l9.0-22.0 Balance Max 0.001 0.55-0.95 2.30-2.70 Ce: Max 0.02
XH77TЮ(ЭИ437A)
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)
356 (≥) 451 (≥) 12 11 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 142
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
346 (≥) 793 (≥) 12 22 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 321
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
415 252 133
XH77TЮ(ЭИ437A) 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
XH77TЮ(ЭИ437A) ГОСТ Russia
Russia GOCT standard deformation of high temperature alloy grades and chemical composition

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