Stainless steel

Nitronic 50

Manufacturer or standards-body identification; product values do not apply to every form or condition.

Specific property examples

What distinguishes this material

Nitronic 50 / XM-19 has separate annealed and proprietary high-strength bar conditions. The bulletin distinguishes annealing temperature and bar diameter; its HS state is obtained by mill processing, not an interchangeable anneal.

Designation in this reference

Nitronic 50 / UNS S20910

Forms covered by the sources

Electralloy bar, forging-quality billet, ingot and master-alloy supply; other manufacturers supply additional forms.

States to distinguish or confirm

Annealed condition requires the actual annealing temperature and cooling method.
High-strength mill-processed bar is a separate condition; later hot work can change its strength.

Temperature and exposure

The example applies only to the bulletin’s 1-inch-diameter annealed bar at room temperature; it is typical data, not a purchase minimum.

Other search names in these sources

UNS S20910 · XM-19

Read the scope above: a source’s related product name is not a blanket interchangeability statement.

Property evidence for a stated condition

Read the complete example before using a number. Typical values are not guaranteed limits. Missing test conditions remain visible.

Specific source example

Nitronic 50 annealed 1-inch bar

Product / specimen: 1 in (25.4 mm) diameter bar
Condition: Annealed at 2050°F (1121°C), water quenched
Test temperature / environment: Room temperature

Values apply to the example above
Property	Value	Meaning and method
Tensile strength	827 MPa	typical Producer bulletin Table 2; original value 120 ksi.
0.2% yield strength	414 MPa	typical 0.2% offset, Table 2; original value 60 ksi.
Hardness	98 HRB	typical Rockwell B, Table 2.

Electralloy Nitronic 50 product data bulletin E-50 ↗

Resolve these conditions next

What product standard, edition and complete grade are on the material certificate?
What product form, section size and delivery/heat-treatment condition will be machined?

For machining, take the exact grade, supplied condition and measured hardness where applicable into the tool maker’s application data. A generic material-family speed is not a substitute for an operation and tool-specific recommendation.

Continue to a machining task →Check specified size limits →

Sources and what they establish

Reviewed 23 October 2026. A source’s publication date and the review date are different. The scope below identifies the fields checked.

Electralloy licensed Nitronic products

Producer listings for Nitronic 50 and 60 and product forms; these are separate alloys.

Electralloy licensed Nitronic products ↗

Electralloy Nitronic 50 product data bulletin E-50

Producer-linked bulletin, internally revised 11-2013: S20910/XM-19, annealed and HS conditions, section-specific mechanical data.

Electralloy Nitronic 50 product data bulletin E-50 ↗

Source identity, a named product example and a supplied-batch certificate are different evidence. Cross-standard similarity does not approve substitution.

Corrections from the previous article

Remove unconditional 95 HRB/760 MPa values; do not use Nitronic 60 galling results as Nitronic 50 evidence.
Withdraw the legacy generic hardness (95 HRB) and tensile-strength (760 MPa (110 ksi)) pair: the old page does not establish a matching product, heat treatment, section and test source.
Remove the unsupported cutting-speed table and machinability percentage; select tooling only after the actual material condition is known.

See this page’s review record →

Other references in Stainless steel

Related references, not equivalent substitutes.

13-8 Mo Stainless →15-5 PH →17-4 PH →Browse this family →