Exotic Alloys XM-19 Fittings Overview
Zeon Exports supplies Exotic Alloy XM-19 (Nitronic 50, UNS S20910) fittings – elbows, tees, reducers and stub ends – a nitrogen-strengthened austenitic stainless steel with a PREN above 34, comparable to duplex 2205, and roughly double the yield strength of standard 316L.
Exotic Alloy XM-19 (Nitronic 50) Fittings connect piping runs in petrochemical and oil field systems. Its chromium, nickel, manganese, molybdenum and nitrogen composition gives excellent corrosion resistance that outperforms 316L and 317L in many media, combined with roughly double the yield strength of standard austenitic grades.
- PREN >34, on par with duplex 2205, exceeding standard 300-series grades
- Tensile ≥862 MPa, yield ≥379 MPa in the annealed condition
- EN 10204 3.1 certified, export-ready worldwide
Quick Specifications of Exotic Alloys XM-19 Fittings
Exotic Alloy XM-19 (Nitronic 50) Fittings are produced to internationally recognized specifications.
| Field | Detail |
|---|---|
| Material/Grade | Exotic Alloy XM-19 (Nitronic 50) |
| UNS | S20910 |
| DIN/Werkstoff Number | 1.3964 |
| Standards | ASTM A182 |
| Form | Elbows, Tees, Reducers, Stub Ends |
| Finish | Pickled & Passivated |
| Heat Treatment | Solution Annealed |
| Certification | EN 10204 3.1 |
Equivalent Grades of XM-19
Alloy XM-19 (Nitronic 50) is recognized under several international designations below.
| UNS | DIN/Werkstoff Number | Common Trade Name | ASTM/ASME Standard |
|---|---|---|---|
| S20910 | 1.3964 | Nitronic 50 / XM-19 / 22-13-5 | ASTM A182 |
Chemical Composition of XM-19
Composition per ASTM A182 for UNS S20910; exact limits can vary slightly by specification and heat.
| Element | Composition (%) |
|---|---|
| Chromium (Cr) | 20.5 – 23.5 |
| Nickel (Ni) | 11.5 – 13.5 |
| Manganese (Mn) | 4.0 – 6.0 |
| Molybdenum (Mo) | 1.50 – 3.00 |
| Nitrogen (N) | 0.20 – 0.40 |
| Iron (Fe) | Balance |
Physical Properties of Exotic Alloy XM-19 (Nitronic 50)
Typical physical properties for XM-19; confirm exact heat-specific figures against the mill test certificate.
| Property | Value |
|---|---|
| Density | ~7.9 g/cm3 (typical) |
| Magnetic Behaviour | Non-magnetic (does not magnetize with cold work) |
Mechanical Properties of Exotic Alloys XM-19 Fittings
Minimum mechanical properties for annealed UNS S20910 per ASTM A182.
| Property | Minimum Value |
|---|---|
| Tensile Strength | 862 MPa (125 ksi) |
| Yield Strength (0.2% offset) | 379 MPa (55 ksi) |
| Elongation | 35% |
| Condition | Solution Annealed |
Corrosion Resistance of Exotic Alloy XM-19 (Nitronic 50)
- Exotic Alloy XM-19 Fittings offer a corrosion profile that outperforms standard austenitic stainless in most media.
- General corrosion resistance: outperforms 316(L) and 317(L) across many chemical environments.
- Pitting and crevice resistance: PREN above 34, comparable to duplex 2205, giving better resistance than 316(L).
Heat Resistance of Exotic Alloy XM-19 (Nitronic 50)
Exotic Alloy XM-19 fittings retain very good mechanical properties at both elevated and sub-zero temperatures. It cannot be hardened by heat treatment; strength is developed through solution annealing and, where higher strength is needed, controlled hot working. Confirm exact service limits against the governing standard and application before specifying.
Key Properties of Exotic Alloys XM-19 Fittings
Beyond corrosion and heat performance, XM-19 fittings offer these additional properties.
- Roughly double the yield strength of standard 316L
- Good toughness maintained at sub-zero temperatures
- Good weldability using matched filler metal
- Non-magnetic even after cold working
Benefits of Exotic Alloys XM-19 Fittings
Choosing XM-19 fittings from Zeon Exports delivers measurable advantages for your project.
- Duplex-level corrosion resistance in an austenitic, easy-to-fabricate alloy
- Full MTC 3.1 documentation for project QA/QC requirements
- Multiple fitting types and end connections to match project specs
- Reliable bulk supply with consistent ready stock
- Competitive export pricing for large industrial orders
- Fast dispatch to global project sites and ports
Related Products
Explore related Exotic Alloys products from Zeon Exports.
Request a Quote for Exotic Alloys XM-19 Fittings
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Call: +91 98205 33105
Email: info@zeonexports.com
Website: www.zeonexports.com
Address: A-7/9, Saboo Building, Ardeshir Dady Cross Lane, Cawasji Patel Tank Road, Mumbai – 400004
Frequently Asked Questions About Exotic Alloys XM-19 Fittings
Common questions about Exotic Alloy XM-19 (Nitronic 50) Fittings, answered below.
Q1: What is Exotic Alloy XM-19 (Nitronic 50)?
Ans. Nitronic 50 (UNS S20910) is a nitrogen-strengthened austenitic stainless steel with a PREN above 34.
Q2: Which fitting types are available in XM-19?
Ans. We supply elbows, tees, reducers and stub ends across standard fitting sizes.
Q3: How does XM-19 compare to 316L?
Ans. XM-19 offers roughly double the yield strength and better pitting resistance than standard 316L.
Q4: Is XM-19 magnetic?
Ans. XM-19 is non-magnetic and does not magnetize with cold work, unlike many standard austenitic grades.
Q5: Is XM-19 suitable for hot chloride environments?
Ans. No, it is not recommended for hot chloride ion environments where stress corrosion cracking risk is elevated.
Q6: What certification is provided with orders?
Ans. Every order ships with EN 10204 3.1 mill test certificates confirming grade, heat and dimensions.
Q7: Does Zeon Exports supply custom fitting sizes?
Ans. Yes, fittings are available in custom sizes and end connections on request for bulk industrial orders.
Q8: Where is XM-19 fitting typically used?
Ans. It is commonly used in petrochemical and oil field piping systems where higher strength than 316L is required.
