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PRODUCTS
Product Details
HSS XM-19
XM-19 is a high-strength nitrogen-alloyed stainless steel offering excellent corrosion resistance, toughness, and mechanical performance for marine, chemical processing, and demanding industrial applications.
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Category
Stainless Steel
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Grade
XM-19 / Nitronic 50 / UNS S20910
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Standard
ASTM A276 / ASTM A479 / ASTM A240
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Product Form
Round Bar / Rod / Shaft / Plate / Sheet / Forging / Wire / Fasteners
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Thickness
0.5–100 mm
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Width
1000–2500 mm
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Length
2000–6000 mm
Features
XM-19, also known as Nitronic 50 and UNS S20910, is a nitrogen-strengthened austenitic stainless steel combining high mechanical strength with excellent corrosion resistance and good toughness. Its alloying system includes chromium, nickel, manganese, molybdenum and nitrogen, providing substantially higher strength than many conventional 300-series stainless steels.
The alloy provides good resistance to general corrosion, pitting and crevice corrosion in a wide range of aggressive environments. It performs particularly well in marine and chemical processing applications where components are exposed to corrosive media while carrying significant mechanical loads.
XM-19 can be supplied in various product forms and processing conditions. Round bar, rod, shaft material, plate, sheet, forgings, wire and fastener stock are available for applications requiring a combination of strength, corrosion resistance and long-term service reliability.
Surface Finish | Pickled / Bright / Ground / Polished / Machined |
Technique | Hot Rolled / Cold Drawn / Forged / Solution Annealed / Cold Worked |
Applications | Marine Hardware, Pump Shafts, Valves, Fasteners, Chemical Equipment, Heat Exchangers, Oil & Gas Components |
High mechanical strength
Excellent general corrosion resistance
Good resistance to pitting and crevice corrosion
Excellent performance in marine environments
Good toughness over a broad temperature range
Higher strength available through cold working
Good resistance to many aggressive chemical environments
Suitable for highly loaded corrosion-resistant components
Chemical Composition (%)
Mechanical Properties (Typical)
Element | Composition (%) |
Fe | Balance |
Cr | 20.50–23.50 |
Ni | 11.50–13.50 |
Mn | 4.00–6.00 |
Mo | 1.50–3.00 |
N | 0.20–0.40 |
Nb | 0.10–0.30 |
V | 0.10–0.30 |
Si | ≤ 1.00 |
C | ≤ 0.06 |
P | ≤ 0.040 |
S | ≤ 0.030 |
Property | Value |
Tensile Strength | ≥ 690 MPa |
Yield Strength (0.2%) | ≥ 380 MPa |
Elongation | ≥ 35% |
Hardness | ≤ 241 HB |
Density | Approx. 7.88 g/cm³ |
Mechanical properties may vary depending on product form, dimensions, processing condition, and applicable material specification.