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Austenitic 660 Application:China Taiwan Heat-Resistant Steel
Category Type Steel grade Standard Country
Grades Special Alloy Austenitic 660 CNS China

Chemical composition % of the ladle analysis of grade Austenitic 660

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) V(%) B(%) Al(%) Ti(%)
Max 0.08 Max 1.00 Max 2.00 0.04 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
Austenitic 660
Mechanical properties of grade Austenitic 660
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)
416 (≥) 673 (≥) 43 24 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 112
Physical properties of grade Austenitic 660
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
453 (≥) 185 (≥) 12 44 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 132
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
157 526 944
Austenitic 660 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
A 771 S38660 CNS China
Seamless Austenitic and Martensitic Stainless Steel Tubing for Liquid Metal-Cooled Reactor Core Components
A 826 S38660 CNS China
Seamless Austenitic and Martensitic Stainless Steel Duct Tubes for Liquid Metal-Cooled Reactor Core Components
A 831 S38660 CNS China
Austenitic and Martensitic Stainless Steel Bars, Billets, and Forgings for Liquid Metal Cooled Reactor Core Components
S38660 CNS China
Austenitic Chromium Nickel Molybdenum Stainless Steel-Reactor Grade
A 959 S66286 CNS China
Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
S66286 CNS China
Iron Base Superalloy
A 176 S44660 CNS China
Stainless and Heat-Resisting Chromium Steel Plate, Sheet, and Strip
A 240 S44660 CNS China
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 268 S44660 CNS China
Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service
S44660 CNS China
Ferritic Chromium Molybdenum Nickel Stainless Steel (SC-1)
SA-240 S44660 CNS China
Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
SA-268 S44660 CNS China
Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service
A 176 S44660 CNS China
Stainless and Heat-Resisting Chromium Steel Plate, Sheet, and Strip
A 240 S44660 CNS China
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 268 S44660 CNS China
Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service
S44660 CNS China
Ferritic Chromium Molybdenum Nickel Stainless Steel (SC-1)
SA-240 S44660 CNS China
Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
SA-268 S44660 CNS China
Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service
SUH 660 CNS China
Heat-resisting steel bars and wire rods
SUH 660 WSA CNS China
Stainless steel wires for cold heading and cold forging

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