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GOST BX4Л Details

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

GOST BX4Л Standard Download

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BX4Л Application:Russia TY standard grades and chemical compositions of the high temperature alloy castings
Category Type Grade Designations
Grades Stainless Steels BX4Л Russia - GOST ,
Chemical composition(mass fraction)(wt.%)
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
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)
345 (≥) 585 (≥) 13 11 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 411
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
379 (≥) 938 (≥) 22 21 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 211
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
823 759 117
BX4Л 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
BX4Л GOST Russia
Russia TY standard grades and chemical compositions of the high temperature alloy castings