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Chemical composition % of the ladle analysis of grade SUH660

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) V(%) B(%) Al(%) Ti(%)
Max 0.08 Max 1.00 Max 2.00 Max 0.04 Max 0.03 13.5- 16.0 24.0- 27.0 1.00-1.50 0.10-0.50 0.001-0.010 Max 0.35 1.90-2.35
SUH660
Mechanical properties of grade SUH660
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)
421 (≥) 587 (≥) 13 21 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 333
Physical properties of grade SUH660
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
422 (≥) 111 (≥) 41 22 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 442
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2
643 993 486
SUH660 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
SUH660
CNS standard heat resistant steel bar steel grade and chemical composition
SUH660
CNS standard heat resistant steel plate of the steel grade and chemical composition

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