Non-Magnetic Stainless Steel

Product Overview

Non-Magnetic Stainless Steel is specially engineered to maintain low magnetic permeability while delivering excellent corrosion resistance and mechanical strength. This type of stainless steel is widely used in industries where magnetic interference must be minimized, such as marine, medical equipment, electronics, and precision instruments.

Typically based on austenitic or high-alloy compositions, non-magnetic stainless steel performs reliably in challenging environments including seawater systems, chemical processing plants, and heat exchanger applications. Even after cold working, these materials retain minimal magnetic response, making them ideal for sensitive applications such as MRI equipment, navigation systems, and electronic housings.

With stable performance, high durability, and excellent fabrication properties, non-magnetic stainless steel provides a dependable solution for industries requiring both corrosion resistance and strict magnetic control.

Application Areas

1. Medical Equipment (MRI Systems)
Used in MRI machines and surgical instruments where zero or very low magnetic interference is critical.

2. Marine & Seawater Systems
Applied in ship components, offshore platforms, and seawater piping systems requiring corrosion resistance and non-magnetic properties.

3. Electronics & Semiconductor Industry
Used in precision electronic enclosures and semiconductor equipment where magnetic disturbance must be avoided.

4. Oil & Gas Exploration
Ideal for downhole tools, drilling components, and measuring instruments where magnetic neutrality improves accuracy.

5. Aerospace & Defense
Used in navigation systems, sensors, and structural components requiring non-magnetic performance.

6. Heat Exchanger Systems
Applied in heat exchanger tubing where corrosion resistance and stable material properties are essential.

Product Features

• Low Magnetic Permeability

• Excellent Corrosion Resistance

• High Strength & Toughness

• Excellent Weldability & Machinability

• Stable Austenitic Structure

• Resistance to Stress Corrosion Cracking

• Suitable for Marine & Chemical Environments

Technical Specifications

Outer Diameter (OD):
6 mm – 630 mm (1/4″ – 24″)

Wall Thickness (WT):
0.5 mm – 50 mm (1/32″ – 2″)

Length:
6 m / 12 m / Custom Length

Standards:
ASTM A312 / ASTM A213 / ASTM A269 / ASME SA312 / UNS

Grades:
304 / 304L / 316L / 317L / Nitronic 50 (XM-19) / Nitronic 60

Manufacturing Process

Non-magnetic stainless steel is produced under strict metallurgical control to ensure low permeability and consistent quality:

Melting (Electric Arc Furnace + AOD Refining) → Hot/Cold Forming (Rolling, Drawing) → Solution Annealing → Pickling & Surface Finishing → Non-Destructive Testing (UT, Eddy Current) → Magnetic Permeability Testing → Final Inspection & Packaging

Each stage is optimized to ensure stable austenitic structure and minimal magnetic response.

FAQ

1. What is the typical magnetic permeability of your products?
Our non-magnetic stainless steel typically has permeability ≤1.005–1.02 depending on grade and processing condition.

2. What is the minimum order quantity (MOQ)?
MOQ is flexible based on size and grade; standard sizes can be supplied in small trial quantities.

3. What is the delivery time?
Delivery time is generally 15–35 days depending on specifications and order volume.

4. Do you provide certification?
Yes, all products come with EN 10204 3.1 Mill Test Certificate and full traceability.

5. Can you supply materials for marine or seawater applications?
Yes, we offer grades like 316L and Nitronic alloys specifically designed for marine and seawater environments.

Conclusion

Non-Magnetic Stainless Steel is the ideal choice for applications requiring both corrosion resistance and minimal magnetic interference. With a wide range of grades, sizes, and customization capabilities, it supports critical industries such as medical, marine, and electronics.

Contact us today to receive a fast quotation and expert technical support for your project.