Nitronic 50 / XM-19 Stainless Steel Plate

Product Details of Nitronic 50 / XM-19 Stainless Steel Plates：

Overview of ASTM A240 XM-19 Stainless Steel Plate:

Nitronic 50 (XM-19/FXM-19) S20910 is a nitrogen-strengthened austenitic stainless steel, its yield strength is about twice that of ordinary 3xx series stainless steel, and its corrosion performance is improved. It is widely used in various marine and industrial applications.

Compared with 316L alloy, Nitronic 50 stainless steel plate contains increased chromium and molybdenum, thereby improving corrosion resistance. The pitting resistance equivalent number (PREN) of 316L alloy is 25, while the PREN of Nitronic 50 is 34. Super duplex stainless steel has a PREN>40, but has different mechanical properties. This is the main reason why Nitronic 50 was chosen to replace the super duplex alloy. Because of its ability to resist sulfide stress cracking, it is listed as an acidic application in NACE MR 0175.

Nitronic 50 (XM-19/UNS S20910) stainless steel plate has very good mechanical properties at high and sub-zero temperatures. Even after large cold deformation or at sub-zero temperature, it can maintain a very low magnetic permeability, and at the same time, it has very good mechanical properties at 1200°F (649°C). Although it can maintain a very low magnetic permeability in a low temperature environment, it still cannot reach the level of Nitronic 33 and Nitronic 40. Many processes have demonstrated outstanding corrosion resistance. After 2025°F (1107°C) annealing treatment, even in the post-welded state, it can exhibit excellent corrosion resistance in a highly corrosive environment.

Nitronic 50 (W.Nr. 1.4565, NAS XM-19) stainless steel plate has outstanding performance in resistance to sulfide stress corrosion cracking and resistance to intergranular corrosion. It can withstand long-term exposure to the marine atmosphere. Tests have shown that its corrosion resistance in calm sea water is slightly better than Monel 400 (UNS N04400). This steel is affected by stress corrosion cracking in a nitride environment, and its crack resistance is between 304 and 316. Nitronic 50 stainless steel plate is a high-efficiency alloy used in petroleum, petrochemical, chemical, fertilizer, nuclear fuel recycling, pulp and paper, textile, food processing and marine industries.

Chemical Composition of ASTM A240 / ASME SA240 Nitronic 50 Plate:

Physical Properties of ASTM A240 XM-19 (UNS S20910) Plates:

Density: 7.88 g/cm3

Melting point: 1415-1550°C

Coefficient of linear expansion: 16.2 16.2 μm/m °C (20-100°C)

Mechanical Properties of ASTM A240 XM-19 stainless steel plate:

Application of Austenitic XM-19 stainless steel plate:

Nictronic 50 is used to manufacture pumps, valves, joints, fasteners, cables, mesh screens, steel wire screen cloth, ship hardware, ship shafts, pump shafts, heat exchanger parts, springs, photographic equipment, etc., which require both corrosion resistance and high Strength parts.

XM-19 is a nitrogen-strengthened austenitic stainless steel, used in petroleum, chemical, fertilizer, pulp and paper, textile, food processing, marine and other industries. Typical applications: sea water pump shafts, heat exchangers, pressure vessels , Marine engineering hardware, etc.

For more information about ASTM A240 Nitronic 50 (XM-19, UNS S20910) Stainless Steel Plate & Sheet, please call +86-731-82250427 or send an Email to [marketing@ronsteel.com]