BX4Л Stainless Steels

BX4Л - Specification & Application

Russia TY standard grades and chemical compositions of the high temperature alloy castings

Chemical composition(wt.%) of BX4Л grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.03 0.10
Cr 32.00 35.00
Al 0.70 1.30
Mo 2.30 3.50
Ti 0.70 1.30
Co - -
W 4.30 5.50
Ni - remaining
Nb 0.70 1.30
Fe - 0.50
B - 0.008
Ce - 0.03
V - -
Zr - -
Mn - 0.50
Si - 0.30
S - 0.010
P - 0.015
Y - 0.04
Ca - 0.02

BX4Л - Detail

Russia TY standard grades and chemical compositions of the high temperature alloy castings

Mechanical properties of grade BX4Л

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)
323 (≥) 362 (≥) 43 14 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical properties of grade BX4Л

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
622 (≥) 246 (≥) 13 12 22 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
759 143 313

Equivalent Grade

Equivalent Products

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