Nitronic XM-19 rods and bars are high-strength austenitic stainless steel materials utilized in applications that demand excellence in strength and resistance to corrosion. These bars provide double the yield strength of normal 304 and 316 stainless steels with superior toughness and non-magnetic characteristics. Made with accuracy to fulfill critical requirements, Nitronic XM-19 is also made in high-strength and annealed conditions. These bars are particularly prized in marine, oil and gas, chemical processing, and structural uses. Their mechanical strength, corrosion resistance, and fabricability make them a perfect solution for challenging industries under harsh service conditions.
Nitronic XM-19 contains about 20–23% chromium, 11–13% nickel, 4–6% manganese, with traces of molybdenum, nitrogen, and silicon. It is nitrogen-hardened to achieve enhanced tensile and yield strength. In annealed form, it has tensile strength of approximately 690 MPa and yield strength greater than 380 MPa with elongation greater than 35%. In high-strength form, yield strength can be greater than 700 MPa. XM-19 has excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. It does not become non-magnetic even when cold worked and possesses good weldability and machinability.
| Grade | Nitronic Alloy XM-19 (UNS No. S20910) |
|---|---|
| Specification | DIN, JIS, ASTM, BS, ASME, AISI |
| Nitronic XM 19 Square bar size | 4 to 100mm |
| Nitronic Alloy XM 19 Hollow Bar | 32mm OD x 16mm ID to 250mm OD x 200mm ID) |
| Nitronic Alloy UNS S20910 Hex Bar size | 2-100mm A/F |
| Nitronic 50 Angle bar size | 3mm*20mm*20mm~12mm*100mm*100mm |
| Nitronic Alloy XM 19 Rectangles Size | 33 x 30mm to 295 x 1066mm |
| Nitronic Alloy UNS S20910 Flat bar size | Thickness: 2 -100mm |
| Width: 10 to 500mm | |
| Nitronic XM 19 Channel Bar | 80 x 40mm to 150 x 75mm section; 5.0 to 6.0mm thickness |
| Nitronic Alloy XM 19 Section | 3.0 to 12.0mm thickness |
| Nitronic Alloy UNS S20910 Round bar size | Diameter: 3-~800mm |
| Nitronic XM 19 Billet Size | 1/2″ to 495mm Diameter |
| Nitronic Alloy XM 19 Round Bar Standard Dimensions | Diameter / Height: |
| Nitronic XM 19 Surface | Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline |
| Nitronic Alloy XM 19 Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
| Nitronic Alloy UNS S20910 Technique | Nitronic XM 19 Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod |
| Nitronic XM 19 Condition | Hardened & tempered, annealed |
| Finish | Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black |
| Form | Nitronic XM 19 Round, Rod, T-Bar, Nickel Alloy Channel Bar, Precision Ground Bar, Nickel Alloy Flat Bar, Nickel Alloy Square Bar, Nickel Alloy Blocks, Nickel Alloy Round Rod, Nickel Alloy Rings, Nickel Alloy Hollow, Nickel Alloy Triangle, Rectangle, Hex (A/F), Nickel Alloy Threaded, Half Round Bar, Profiles, Nickel Alloy Billet, Nickel Alloy Ingot, I/H Bar, Forging etc. |
| Processing | Bar cutting to 650mm |
| Our Nitronic 50 Round bar conforms to NACE MR0175/ISO 15156 | |
| Grade | C | Mn | S | Si | N | Ni | Cr |
| Nitronic Alloy XM-19 | .06 | .10 | 0.03 | 1.00 | 0.20 – 0.40 | 11.50 – 13.50 | 20.50 – 23.50 |
| Hardness MAX, Brinell | 241 |
| Ultimate Tensile Strength, ksi | 95 |
| 0.2% Yield Strength, ksi | 50 |
| Elongation, % | 35 |
| Reduction of Area, % | 55 |
| Grade | C | Mn | S | Si | N | Ni | Cr |
| Nitronic Alloy XM-19 | .06 | .10 | 0.03 | 1.00 | 0.20 – 0.40 | 11.50 – 13.50 | 20.50 – 23.50 |
Common diameters for Nitronic XM-19 rods typically range from 1/8 inch (3.175 mm) to 6 inches (152.4 mm), though custom sizes may also be available depending on the supplier.
Nitronic XM-19 rods typically come in standard sizes ranging from 1/8 inch to 6 inches in diameter, with lengths varying from 12 to 20 feet, depending on supplier and application.
Yes, Nitronic XM-19 bar can be welded. It is known for its excellent weldability, though proper procedures and filler materials are essential for maintaining its mechanical properties and corrosion resistance.
Nitronic XM-19 rods and bars have applications in high-strength and corrosion-resistant applications like pump shafts, valve parts, fasteners, offshore oil drilling equipment, and marine hardware. Due to their non-magnetic nature, they have applications in measurement instruments and electronic enclosures. They have applications in chemical processing facilities, desalination plants, nuclear and hydroelectric power plants, and food processing equipment. XM-19 also excels in seawater and freshwater environments, and it is a choice material in subsea and shipbuilding activities. Its resistance to maintaining mechanical integrity under loading and corrosive stress provides long-term service reliability.






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