Nitronic 50(XM-19) (UNS S20910)

NITRONIC 50 Stainless Steel provides a combination of corrosion resistance and strength not found in any other commercial material available in its price range. This austenitic stainless has corrosion resistance greater than that provided by Types 316 and 316L, plus approximately twice the yield strength at room temperature. In addition, ANTONNITRONIC 50 Stainless has very good mechanical properties at both elevated and sub-zero temperatures. And, unlike many austenitic stainless steels, NITRONIC 50 does not become magnetic when cold worked.

High Performance Alloys can make hot rolled, cold worked, & strain hardened High Performance Stainless Steel (HPSS) bars in house. Ask for our GFM Bulletin for more information about our bar processing capabilities. We have expanded to enhance product availability.

Nitronic 50 chemical composition:

Nitronic 50 mechanical properties:

Nitronic 50 specifications:

Annealing Temperature
NITRONIC 50 Stainless Steel can be supplied annealed at 1950 F to 2050 F (1066 C to 1121 C). For most applications, the 1950 F (1066 C) condition should be selected, as it provides a higher level of mechanical properties along with excellent corrosion resistance. When as-welded material is to be used in strongly corrosive media, the 2050 F (1121 C) condition should be specified in order to minimize the possibility of intergranular attack.

Corrosion Properties
ANTONNITRONIC 50 Stainless Steel provides outstanding corrosion resistance – superior to Types 316, 316L, 317 and 317L in many media. For many applications the 1950 F (1066 C) annealed condition provides adequate corrosion resistance and a higher strength level. In very corrosive media or where material is to be used in the as-welded condition, the 2050 F (1121 C) annealed condition should be specified. High-Strength (HS) NITRONIC 50 bars are useful for applications such as shafting and bolting, but do not quite exhibit the corrosion resistance of the annealed conditions in all environments.

Intergranular Attack
The resistance to intergranular attack is excellent even when sensitized at 1250 F (675 C) for one hour to simulate the heat-affected zone of heavy weldments. Material annealed at 1950 F (1066 C) has very good resistance to intergranular attack for most applications. However, when thick sections are used in the as-welded condition in certain strongly corrosive media, the 2050 F (1121 C) condition gives optimum corrosion resistance.

Stress-Corrosion Cracking Resistance
In common with most stainless steels, under certain conditions, ANTON NITRONIC 50 Stainless Steel may stress-corrosion crack in hot chloride environments. When tested in boiling 420/0 MgCI2 solution, a very accelerated test, NITRONIC 50 Stainless Steel is between types 304 and 316 stainless steels in resistance to cracking. There is little difference in susceptibility to cracking whether in the annealed, high-strength (HS), or cold-drawn conditions.

Sulfide Stress Cracking
Both laboratory tests and field service experience have shown that ANTON NITRONIC 50 stainless has excellent resistance to sulfide stress cracking in air conditions. NITRONIC 50 in both the annealed and high-strength (hot rolled) conditions has been included in the 1996 revision of NACE Standard MR-01 -75′ “Sulfide Stress Cracking Resistant Metallic Material for Oil Field Equipment,” at hardness levels up to RC 35 maximum. The resistance to cracking in laboratory tests in synthetic sour-well solution(5% NaCI + ½% acetic acid. saturated with H2S)

What is the difference between Nitronic 50 and 60?

Nitronic 50 is a corrosion-resistant metal with low magnetic permeability. Generally considered an all-purpose metal, nitronic 60 is oxidation resistant and tolerates extreme wear and galling. Contact us for more information on nitronic alloys or other specialty metals.

What is the difference between Nitronic 50 and SS 316?

At all elevated temperature conditions, stainless steel 316 was found to have a surface film consisting of iron oxides, while the surface film of Nitronic-50 predominantly consisted of nickel-iron spinel.

What is equivalent to Nitronic 50?

Nitronic 50 is an austenitic stainless steel, produced with an increased nitrogen content which improves its strength and corrosion resistance. This alloy is also widely referred to as XM19, which is the designation of the generic alloy caption in ASTM A276 and ASTM A479, as well as UNS S20910 or DIN 1.3964.

What is the difference between Nitronic 50 and Fermonic 50?

Sold under the names XM-19, NIT 50 High Strength, and UNS S20910, Fermonic 50 High Strength differs in that it has a higher tensile strength (862 N/mm² versus 690) and proof stress (690 N/mm² versus 415) than Fermonic 50 Annealated.

What is the difference between Nitronic 50 and 40?

Nitronic 40 is a high-temperature stainless with low magnetic permeability. Common applications include instrument or hydraulic tubing, but it is also found in bar and sheet. 22-13-5 Nitronic 50 is a corrosion-resistant stainless, commonly used for saltwater and marine applications.

How hard is Nitronic 50?

Annealed nitronic 50 stainless steel has a Brinell scale hardness of 150, and a Rockwell hardness of B80. Nitronic 50 stainless cannot be hardened by heat treatment; cold working will increase strength and hardness.

What is Nitronic 50 used for?

The following are the list of applications of nitronic 50 alloy:

• Fasteners
• Marine hardware
• Boat shafting
• Pumps and valves