Nitrogen Reinforced Austenitic Xm-19 Light Rod High-Strength
Nitronic 50 Rod And Plate
Introduction to Austenitic Stainless Steel XM-19:
XM-19 is a high-performance, corrosion-resistant metallic material
belonging to austenitic stainless steel, also known as UNS S20910
or Nitronic 50.
It has high strength, high corrosion resistance, good processing
performance and welding performance, and is widely used in various
industrial fields, such as oil, natural gas, chemical, shipbuilding
and pharmaceutical.
Chemical composition table %
| element | C | Si | Mn | P | S | Cr | Ni | Mo | N | V |
| content | ≤0.06 | ≤1.00 | 0.50~4 | ≤0.040 | ≤0.030 | 13~23.50 | 17~23 | 2~3 | 0.20~0.4 | 0.10~0.50 |
These chemical components have a significant impact on the
properties of XM-19 stainless steel. For example, high levels of
chromium and nickel provide excellent corrosion resistance,
especially the ability to resist oxidation and reduction corrosion;
The addition of molybdenum further enhances corrosion resistance,
especially in resisting pitting and crevice corrosion; The addition
of nitrogen increases the strength and hardness of the material. In
addition, the addition of vanadium helps to improve the hardness
and wear resistance of the material. These characteristics make
XM-19 stainless steel suitable for industries such as aerospace,
shipbuilding, chemical equipment, and marine engineering.
characteristic:
Mechanical properties at room temperature: up to 203mm
Rp0,2: ≥ 365 N/mm²
A: ≥ 35%
Rp1,0: ≥ N/mm²
KV: ≥ 85 J
Tensile strength Rm: 690-950 N/mm ² for thicknesses below 203mm
Brinell hardness: maximum 293 HBW
Performance:
Weldability: No need for PWHT, good
Processability: 4 (1=poor -10=good)
Corrosion resistance: excellent
Forging ability: moderate
Mechanical performance: Good
characteristic:
1. High strength and wear resistance: The design of XM-19 aims to
meet the requirements of high load and high wear resistance. Its
impact resistance is related to factors such as alloy element
content, grain size, and heat treatment process. By adjusting these
factors, the impact resistance can be improved. In addition, the
lattice structure of XM-19 is face centered cubic, which gives it
high plasticity, toughness, and wear resistance, providing a
guarantee for its application in various harsh environments.
2. Machinability and Weldability: XM-19 is a nitrogen strengthened
austenitic stainless steel with strong machinability and high
weldability. Its yield strength is twice that of 316 stainless
steel and it has comparable corrosion resistance to 316 stainless
steel. Even after extreme molding, XM-19 stainless steel remains
non-magnetic.
3. Stress corrosion cracking performance: In specific environments,
the cracking resistance of XM-19 stainless steel is between 304 and
316, indicating its good corrosion resistance performance in
certain specific environments.
4. Application areas: XM-19 can reduce vehicle weight, fuel
consumption, and improve vehicle safety performance in automotive
manufacturing. In the field of ocean engineering, such as ships,
offshore platforms, etc., they have good resistance to seawater
corrosion and fatigue performance. In addition, it also has good
corrosion resistance and a long service life in underground
facilities, underwater engineering and other fields.
5. Mechanical properties: The tensile strength of XM-19 is 620 MPa,
the yield strength is 310 MPa, and the elongation is 35%. These
mechanical performance indicators ensure its reliability and safety
in various applications.
In summary, XM-19 stainless steel has become the preferred material
in multiple industrial fields due to its high strength, good wear
resistance, excellent processability and weldability, as well as
excellent corrosion resistance in specific environments
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