.png)
.png)
.png)
PRODUCTS
Product Details
HSS XM-19
XM-19 is a nitrogen-strengthened stainless steel offering high strength, excellent corrosion resistance, superior toughness, and reliable performance in demanding marine and industrial applications.
.png)
Category
Stainless Steel
.png)
Grade
XM-19 / UNS S20910 / Nitronic 50
.png)
Standard
.png)
Product Form
ASTM A276 / ASTM A479 / ASTM A182 / AMS 5764
Round Bar / Forged Bar / Shaft / Valve Stem / Fasteners / Pump Components / Marine Hardware / Machined Parts
.png)
Thickness
5–150 mm
.png)
Width
500–2500 mm
.png)
Length
1000–6000 mm
Features
XM-19 is a nitrogen-strengthened austenitic stainless steel designed to combine significantly higher mechanical strength than conventional 300-series stainless steels with excellent corrosion resistance and toughness.
Its chromium, nickel, molybdenum, manganese and nitrogen alloying system provides strong resistance to general and localized corrosion. Nitrogen plays an important role in increasing strength while also contributing to pitting resistance without sacrificing useful ductility.
XM-19 performs particularly well in marine and seawater environments and provides good resistance to pitting, crevice corrosion and chloride-related attack. Its combination of strength and corrosion resistance makes it suitable for highly loaded components exposed to aggressive environments.
Typical applications include marine shafts, valve stems, pump components, fasteners, seawater equipment and machined parts used in chemical processing, nuclear, oil and gas, and marine engineering.
Surface Finish | Bright / Peeled / Ground / Polished / Machined |
Technique | Hot Rolled / Cold Worked / Forged / Solution Annealed / Machined |
Applications | Marine Shafts, Valve Stems, Pump Components, Fasteners, Seawater Equipment, Chemical Processing, Nuclear Components, Oil & Gas Equipment |
High mechanical strength
Nitrogen-strengthened austenitic structure
Excellent general corrosion resistance
Good pitting and crevice corrosion resistance
Excellent toughness and ductility
Good seawater resistance
Good fatigue performance
Strength can be increased by cold working
Suitable for highly loaded components
Excellent performance in marine environments
Chemical Composition (%)
Mechanical Properties (Typical)
Element | Composition (%) |
Fe | Balance |
Cr | 20.5–23.5 |
Ni | 11.5–13.5 |
Mn | 4.0–6.0 |
Mo | 1.5–3.0 |
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 | Typical Value |
Tensile Strength | ≥ 690 MPa |
Yield Strength (0.2%) | ≥ 380 MPa |
Elongation | ≥ 35% |
Hardness | Approx. ≤ 269 HB |
Density | Approx. 7.88 g/cm³ |
Mechanical properties may vary depending on product form, dimensions, cold-working level, heat-treatment condition, and applicable material specification.