UNS Nitronic 60®, UNS S21800, Alloy 218 ( Austenite )

  • UNS Nitronic 60®, UNS S21800, Alloy 218 Details

    UNS standard material Nitronic 60®, UNS S21800, Alloy 218 belongs to the USA, from the steel to the finished product, we have the perfect technology and many years of accumulation of experience, we can now produce products include steel coil, sheet, plate,round bar, square steel, steel wire, steel pipe, forgings, other...

    Nitronic 60®, UNS S21800, Alloy 218 Application:used in the chemical, petrochemical, pharmaceutical, machine industries (hydraulic systems) and food industry for valves, flanges, pump parts, springs, heat exchangers, screws and even chains.

Chemical composition(mass fraction)(wt.%)
Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.10
Mn 7.00 9.00
Si 3.50 4.50
P - 0.04
S - 0.03
Cr 16.00 18.00
Ni 8.00 9.00
Mo - -
N 0.08 0.18
Mechanical properties of grade Nitronic 60®, UNS S21800, Alloy 218
Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition HBW
274 (≥) 123 (≥) 33 12 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 121
Physical properties of grade Nitronic 60®, UNS S21800, Alloy 218
Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
897 (≥) 229 (≥) 41 42 42 Solution and Aging, Annealing, Ausaging, Q+T,etc
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
- - -
175 546 161 - - -
Nitronic 60®, UNS S21800, Alloy 218 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