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Nitronic 33

Nitronic 33

Nitronic 33 is a nitrogen-strengthened austenitic stainless steel designed for its strong cryogenic properties, low magnetic permeability, and excellent yield strength, ductility, and toughness. Its superior strength and durability make it ideal for long-term industrial and engineering applications.

Equivalent grades

• Nitronic 33
• UNS S24000
• XM-29

Chemical Composition Reference

Cr: 17-19

Ni: 2.25-3.75

Mn: 11.5-14.5

Si: 0.75max

C: 0.08

P: 0.06

N: 0.2-0.4

S: 0.03

Physical Property Reference

• Density: 7.78 g/cm³

• Tensile strength: 689 MPa

• Yield strength: 379 MPa

• Elogation: 40%

Stock & Dimensions

Our warehouse has a large number of stock to provide you with a variety of products in different sizes, and can also customize the size according to your needs.
• Bar: 0.5~600mm Diameter
• Coil: 0.5~150mm Thick
• Plate: 0.5~200mm Thick
• Pipe: 6~630mm External Diameter; 0.5~40mm Wall Tick
• Available in specific sizes

Product Forms

We provide you with a variety of product forms, including but not limited to:
• Bar/Rod
• Pipe/Tube
• Coil/Strip
• Plate/Sheet/Circle
• Wire
• Fitting (Flange, Elbow, Tee...)
• Customize

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Nitronic 33

Essential details
Nitronic 33 is an austenitic stainless steel designed to withstand cryogenic temperatures. It also offers excellent corrosion resistance, just below that of 304 stainless steel. Furthermore, its yield strength is double that of 304 stainless steels at room temperature due to the addition of nitrogen.


- Marine components

- Heat exchangers - Valves

- Components used in cryogenic operations

- Electrical components

- Pressure vessels

- Fans

- Pipes

- Tube assemblies

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