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KS STR600 Details

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STR600 Application:Heat - resisting steel bars

Category Type Grade Microstructure Designations
Grades Stainless Steels STR600 Martensite Korea - KS , D 3731 (2002) - Heat - resisting steel bars

Chemical composition(wt.%) of STR600 grade: D 3731 (2002)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.15 0.20
Si - 0.50
Mn 0.50 1.00
P - 0.04
S - 0.03
Cr 10.00 13.00
Ni - 0.60
Mo 0.30 0.90
N - -
Cu - 0.30
Nb 0.20 0.60
V 0.10 0.40
Heat - resisting steel bars

Mechanical properties of grade STR600 D 3731 (2002)

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)
261 (≥) 171 (≥) 12 41 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 234

Physical properties of grade STR600 D 3731 (2002)

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
681 (≥) 885 (≥) 32 41 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 444
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
935 842 633

STR600 - Form of Supply

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
STR600 KS Korea
Heat - resisting steel bars

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