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UNS Nitronic 60®, UNS S21800, Alloy 218 Details

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.

Category Type Grade Microstructure Designations
Grades Stainless Steels Nitronic 60®, UNS S21800, Alloy 218 Austenite USA - UNS ,

Chemical composition(wt.%) of Nitronic 60®, UNS S21800, Alloy 218 grade:

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 Strength,Rp 0.2(MPa)

Condition Min Max Similar Note
Annealed condition 345

Tensile Strength,Rm(MPa)

Condition Min Max Similar Note
Annealed condition 655

Impact,Kv/Ku(J)

Condition Min Max Similar Note

Elongation,A(%)

Condition Min Max Similar Note
Annealed condition 35

Reduction of area,(%)

Condition Min Max Similar Note
Annealed condition 55

Hardness

Condition Type Min Max Similar Note
Annealed condition HBW 241
Annealed condition HRBW 100

Austenitic Chromium Nickel Manganese Stainless Steel Non-magnetic stainless steel Nitronic 60®, UNS S21800, Alloy 218.

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.

Nitronic 60®, UNS S21800, Alloy 218 - 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
Nitronic 60®, UNS S21800, Alloy 218 UNS USA
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.

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