General Description

Nitronic 50 is a nitrogen-strengthened austenitic stainless steel, which provides a combination of corrosion resistance and strength not found in any other commercial materials in its price range. This alloy possesses corrosion resistance superior to 316, 316L, 317 and 317L plus approximately twice the yield strength at room temperature.

It has very good mechanical properties at both elevated and sub-zero temperatures. The alloy retains low magnetic permeability even after severe cold working or exposure to sub-zero temperatures and excellent mechanical properties up to 1200°F (649°C).

Nitronic 50 is used in such applications as seawater pumps, gate valves for seawater ballast systems on tankers, high-pressure (microbial) deep-sea sampler and incubation chambers and underwater robotic arms, urea production, ammonium carbamate pumps, pressure vessels, tanks, heat exchangers, piping, fittings, valves and pumps, oil field production and down-hole equipments. 

Chemical Composition

Grade Ni% Cr% Fe% C% Mn% Si% N% Mo% Nb% V% P% S%
Nitronic 50 11.5-13.5 20.5-23.5 52-62 Max 0.06 4.0-6.0 Max 1.0 0.2-0.4 1.5-3.0 0.1-0.3 0.1-0.3 Max 0.04 Max 0.03

Specifications

Grade UNS ASTM
Nitronic 50 S20910 XM-19

Physical Properties

Grade Density Melting Point
Nitronic 50 7.8 g/cm3 1415 °C-1450 °C

Mechanical Properties

Condition Tensile Strength Yield Strength σp0.2/MPa Elongation
 
Reduction%
Solution Treated Min 690 Mpa Min 380 Mpa Min 35% Min 55%

Our Production Standard

Standard Bar Forging Sheet/Plate
ASTM ASTM A193
ASTM A194
ASTM A276
ASTM A479
ASTM A193
ASTM A194
ASTM A276
ASTM A479
ASTM A240

Size Range

Nitronic 50 bar, rod, forging, plate, sheet are available.

Email our sales for quotation!

Nitronic® is a registered trademark of AK Steel.