Nitronic 60 (UNS S21800)
Nitronic 60 (UNS S21800) is known for its excellent galling resistance, even at elevated temperatures. The additions of 4% silicon and 8% manganese inhibit wear, galling, and fretting. It is commonly used for various fasteners and pins that require strength and resistance to galling. It maintains decent strength up to temperatures of 1800°F and has oxidation resistance similar to that of 309 stainless steel. The general corrosion resistance is between that of 304 and 316 stainless steel.
Equivalent Grades
| Trademarks | GB | JIS | KS | ASTM | UNS | DIN | W.Nr | GOST | BS | NF |
|---|
| Nitronic 60 | – | – | – | Alloy 218 | S21800 | N-60 | – | – | – | – |
Product Forms
Wire, Bar, Strip, Sheet, Plate, Tube, Pipe, Pipe Fittings, Forgings
Chemical Composition,%
| C | P | S | Mn | Si | Cr | Ni | Mo | N | Fe |
|---|
| ≤0.10 | ≤0.04 | ≤0.03 | 7.00~9.00 | 3.50~4.50 | 16.00~18.00 | 8.00~9.00 | ≤0.75 | 0.08~0.18 | Bal |
Typical Physical & Mechanical Properties (RT, Solution Annealed)
| Density, g/cm3 | Melting Point, ℃ | Tensile Strength, MPa | Yield Strength, MPa | Elongation,% |
|---|
| 8.00 | 1350-1380 | ≥655 | ≥345 | ≥35 |
Specifications
| Rod, Bar, Wire, Forgings | ASTM A193/A194, ASTM A276, ASTM A479, AMS 5848 |
|---|
| Plate, Sheet, Strip | ASTM A240 F899 |
| Others | ASTM A182, ASTM A193/A194, ASTM A276, ASTM A479 F899, AMS 5848 |
| Welding Products | A5.9 ER218 |
Features
- Anti galling
- Wear resistant
Applications
- Valve Stems
- Pins
- Brushes
- Roller bearings
- Pump shafts and rings
- Thread inserts
- Fasteners
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