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KS STR35 Details

Heat - resisting steel bars

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STR35 Application:Heat - resisting steel bars
Category Type Grade Microstructure Designations
Grades Stainless Steels STR35 Austenite Korea - KS , D 3731 (2002) - Heat - resisting steel bars
Chemical composition(mass fraction)(wt.%)
Elements Min.(≥) Max.(≤) Similar Remarks
C 0.48 0.58
Si - 0.35
Mn 8.00 10.00
P - 0.040
S - 0.030
Cr 20.00 22.00
Ni 3.25 4.50
Mo - -
N 0.35 0.50
Mechanical properties of grade STR35
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)
971 (≥) 293 (≥) 41 32 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 142
Physical properties of grade STR35
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
386 (≥) 329 (≥) 24 31 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 114
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
173 859 641
STR35 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
STR35 KS Korea
Heat - resisting steel bars