Nitronic 50 (XM-19) round bars are made from an alloy whose chemistry includes roughly 20.5–23.5 % chromium, 11.5–13.5 % nickel, 4–6 % manganese, 1.5–3.0 % molybdenum, and nitrogen in the range of 0.20–0.40 %, along with small amounts of niobium and vanadium. This composition gives the material high strength, great pitting and crevice corrosion resistance (often better than 316 stainless), and low magnetic permeability — even after severe cold working or exposure to low temperatures. The alloy conforms to ASTM standards such as ASTM A276 and ASTM A479 for bars and shapes, and in pressure applications, it can be used in accordance with ASME (e.g., ASME SA-240) as well.

One of the strongest advantages of SMM Industries LLP’s Nitronic 50 (XM-19) round bars is their mechanical performance. In the annealed condition, the alloy offers a tensile strength of around 690 MPa and a yield strength of about 380 MPa, with elongation of 35 % or more. This means Nitronic 50 supports loads far higher than conventional 300-series stainless steels. The nitrogen in the alloy also helps resist fatigue, making it ideal for cyclic loading.

Corrosion resistance is a key benefit: Nitronic 50 shows superior resistance to pitting and crevice corrosion compared to 316 stainless steel. It also resists stress corrosion cracking in chloride environments, while maintaining strength at elevated temperatures and in cryogenic conditions. The alloy is non-magnetic in its annealed or cold-worked conditions, which makes it well suited for applications where magnetic permeability must be minimized. In addition, it offers good galling and wear resistance, which can significantly extend component life in friction-intensive systems.

SMM Industries LLP’s Nitronic 50 (XM-19) round bars serve a wide array of demanding applications. Key uses include:

• Marine and ship shafting: Nitronic 50 round bars are ideal for marine hardware and boat shafts, where corrosion from seawater is a constant challenge.

• Chemical and petrochemical equipment: The alloy’s resistance to aggressive chemicals makes it perfect for valve shafts, fittings, and connectors in chemical plants.

• Pump components: High-strength shafts and impellers benefit from Nitronic 50’s combination of strength and corrosion resistance.

• Heat exchangers and pressure vessels: Due to its stability at different temperatures and pressures, it is used for heat exchanger parts, pressure vessel internals, and associated fittings.

• Medical and nuclear: Its toughness, non-magnetic nature, and strength make it suitable for surgical components and nuclear hardware.

• Oil and gas / Down-hole tools: Nitronic 50 is used in drill collars, fishing tools, and mud motors, especially where non-magnetic and high-strength properties are required.

SMM Industries LLP ensures high-quality supply, with a full range of product forms—round bar, square bar, hex bar, and billet—available in hot-rolled, cold-drawn, or forged conditions. The alloy is weldable by conventional methods (TIG, MIG), and uses filler metals like Nitronic 50W (AWS E/ER209) for compatible welding, safeguarding both strength and corrosion resistance.

Across the globe, Nitronic 50 (XM-19) is known under several equivalent standards: its UNS designation is S20910, its Werkstoff (DIN) number is 1.3964, and its trade name is XM-19 or Nitronic 50. Our alloy is also referenced in AMS 5764, ASTM A193/A194, ASTM A262, ASTM A276, ASTM A479, ISO 15156-3, and NACE MR0175.

As a trusted name in the industry, SMM Industries LLP is among the leading Nitronic 50 (XM-19) Round Bars Manufacturers, ensuring consistent quality and traceability. We also act as Nitronic 50 (XM-19) Round Bars Suppliers, serving domestic and global demand with a robust inventory. Our network of Nitronic 50 (XM-19) Round Bars Stockists ensures timely delivery, while as experienced Nitronic 50 (XM-19) Round Bars Exporters, we support international projects across multiple geographies.

In summary, Nitronic 50 (XM-19) round bars from SMM Industries LLP deliver a high-performance material that excels where regular stainless steels fall short. Whether you need corrosion resistance, strength, non-magnetic behavior, or fatigue life, this alloy offers a reliable solution for critical applications in marine, chemical, oil and gas, medical, and beyond.