Alloy Wire International
Datasheet: Nitronic** 50
Nitronic** 50
Nitronic 50 exhibits corrosion resistance and that is superior to type 316 Stainless Steel. It has good mechanical properties at ambient and sub-zero temperatures. Unlike other austenitic stainless steels, it does not become magnetic when cold worked or cooled to sub-zero temperatures. Nitronic 50 is therefore considered for applications in the oil & gas, offshore, chemical and marine industries.
Nitronic 50 is also known as Aquamet 2, Aquamet 22, and Temet 25.
Available in all profile options
Key Features
Nitronic 50 offers the following key features:
Superior corrosion resistance to type 316 stainless steel.
Good mechanical properties at ambient and sub-zero temperatures.
Does not become magnetic when cold worked or cooled to sub-zero temperatures.
Typical Applications
Nitronic 50 is known to be suitable for the following applications:
Components in processing environments like:
– marine
– petroleum
– petrochemical
– fertilizer
– pulp and paper
Designations
W.Nr. 1.3964
UNS S20910
AWS 165
Specifications
ISO 15156-3 (NACE MR0175)
Chemical Composition
The chemical composition of Nitronic 50 is indicated in the table below:
| Element | Min % | Max % |
|---|---|---|
| C | – | 0.06 |
| Si | – | 1.00 |
| Mn | 4.0 | 6.0 |
| Ni | 11.5 | 13.5 |
| Cr | 20.5 | 23.5 |
| S | – | 0.03 |
| P | – | 0.04 |
| Mo | 1.5 | 3.0 |
| N | 0.20 | 0.40 |
| V | 0.10 | 0.30 |
| Nb/Cb | 0.10 | 0.30 |
| Fe | bal |
Alloy Details
Nitronic 50 density, melting point, coefficient of expansion, modulus of rigidity, and elasticity is indicated in the table below:
| Density | Melting Point | Coefficient of Expansion | Modulus of Rigidity | Modulus of Elasticity |
|---|---|---|---|---|
| 7.88 g/cm³ | 1415 – 1450 °C | 16.2 μm/m °C (20 – 100 °C) | 78.9 kN/mm² | 196.5 kN/mm² |
| 0.285 lb/in³ | 2579 – 2642 °F | 9.0 x 10-6 in/in °F (70 – 200 °F) | 11444 ksi | 28500 ksi |
Heat treatment of finished parts
The typical heat treatment of Nitronic 50:
| Condition as supplied by AWI | Type | Temperature | Time | Cooling |
|---|---|---|---|---|
| Annealed or Spring Temper | Stress Relieve | 250 °C (480 °F) | 1 Hr | Air |
Properties
The typical mechanical properties of Nitronic 50:
| Solution Annealed | ||
|---|---|---|
| Approx. tensile strength | <1000 N/mm² | <145 ksi |
| Approx. operating temperature | -200 to +300 °C | -330 to +570 °F |
| Spring Temper | ||
|---|---|---|
| Approx. tensile strength | 1300 – 2200 N/mm² | 189 – 319 ksi |
| Approx. operating temperature | -200 to +300 °C | -330 to +570 °F |
The above tensile strength ranges are typical. If you require different please ask.
*Trade name of AK Steel
