XM-19 stainless steel, also known as Nitronic 50, combines high strength, excellent corrosion resistance, and good wear resistance for demanding precision components.


XM-19 is a nitrogen-strengthened austenitic stainless steel developed for applications requiring a combination of high mechanical strength, corrosion resistance, and wear performance. It is commonly known as Nitronic 50 and is available in different strength conditions. Compared with conventional 300-series stainless steels, XM-19 can provide significantly higher strength while maintaining excellent resistance to many corrosive environments. For CNC machining, XM-19 is suitable for precision components where standard stainless steel grades may not provide sufficient strength or durability.
| Property | XM-19 Stainless Steel |
|---|---|
| Material Type | Austenitic Stainless Steel |
| Common Name | Nitronic 50 |
| UNS Number | S20910 |
| Corrosion Resistance | Excellent |
| Strength | High |
| Wear Resistance | Excellent |
| Magnetic Response | Low to moderate,depending on condition |
| Machinabillity | Moderate |
| Weldabillity | Good |
XM-19 supports various surface finishing options, including polishing, passivation, bead blasting, and precision grinding. These treatments enhance corrosion resistance, surface quality, and dimensional accuracy, making machined XM-19 components suitable for demanding applications requiring durability, cleanliness, and long-term performance.

As Machined
Standard finish, surface roughness of 3.2 μm (126 μin), removes sharp edges and deburs parts cleanly.

Tumbling
Utilizes barrel or vibratory processes with abrasives to smooth and polish the surface of parts.

Heat Treatment
Alters the physical (and sometimes chemical) properties of a material to achieve desired mechanical properties.

Electroplating
Electroplating is an electrochemical process that deposits a protective metal layer onto a conductive surface.

Powder Coating
Powder coating provides a durable, scratch-resistant finish with excellent corrosion protection and a clean, attractive appearance.
XM-19 CNC machining delivers excellent strength, corrosion resistance, and wear performance for challenging environments. However, its high work-hardening tendency and premium material cost can increase machining difficulty and production expenses. Proper tooling and machining strategies help achieve optimal results.
pros
cons
CNC machined XM-19 components are widely used in marine, aerospace, chemical processing, oil and gas, and industrial equipment applications. Its combination of high strength, corrosion resistance, and toughness makes it ideal for precision parts exposed to harsh operating conditions.
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We offer both rapid prototyping and large-scale production, utilizing over 700 machines and experienced engineers to deliver high quality CNC parts with minimal compromise on lead time or consistency.
For precision CNC machining, we hold tolerances as tight as ±0.01mm. For sheet metal fabrication, our standard tolerance is ±0.1mm, depending on design complexity.
We process a wide range of metals including Aluminum (6061, 7075), Stainless Steel (304, 316), Titanium, Copper, Brass, and various specialty alloys.
Yes. We offer fast-turnaround prototyping to help you verify designs and functional requirements before scaling to high-volume manufacturing.
Yes, we are IATF 16949 certified for the automotive industry, along with ISO 9001 and ISO 14001 certifications to ensure global quality standards.
Prototypes usually take 3-7 days. Mass production lead times vary from 2-4 weeks depending on the project scale and secondary finishing requirements.
Yes. We have an integrated eco-friendly coating line and offer anodizing, plating, sandblasting, and laser engraving as part of our one-stop service.
Simply upload your CAD drawings (STEP, IGS, or PDF) via our contact form. Our engineers will provide a technical assessment and quote within 24 hours.
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