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AISI S66220 Details

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S66220 Application:Iron Base Superalloy

Category Type Grade Microstructure Designations
Grades Stainless Steels S66220 Austenite USA - AISI ,

Chemical composition(wt.%) of S66220 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Mn - 1.50
Si - 1.00
P - 0.04
S - 0.03
Cr 12.00 15.00
Ni 24.00 28.00
Mo 2.50 3.50
Iron Base Superalloy

Mechanical properties of grade S66220

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)
362 (≥) 527 (≥) 24 33 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 432

Physical properties of grade S66220

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
524 (≥) 776 (≥) 41 13 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 221
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
715 692 787

S66220 - 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
S66220 AISI USA
Iron Base Superalloy
A 959 S66286 SAE USA
Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
S66286 AISI USA
Iron Base Superalloy
HEV7 UNS USA
Steel for exhaust valves
X8Ni9 AFNOR France
Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
1.5662 AFNOR France
Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
2662 SS Sweden
Structural steel for cold forming - SS-steel 2662
IncoloyA-286 ASTM USA
Creep resisting steels, nickel and cobalt alloys

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