Project Description
Magnadur 501 Non-Magnetic Stainless Steel
Product Description
Magnadur 501 is a specialized non-magnetic stainless steel developed by Deutsche Edelstahlwerke GmbH with exceptional corrosion resistance properties. This high-performance alloy features a permeability μ < 1.01, combined with high strength and superior corrosion resistance. With a well-balanced chemical composition including 19.0-22.0% chromium and 0.25-0.50% nickel, Magnadur 501 delivers reliable performance in environments where magnetic interference must be eliminated while maintaining structural integrity.
Applications
Magnadur 501 is specifically designed for petroleum measurement instruments and equipment operating in magnetic field environments. Its primary applications include standard drill collar components where pitting corrosion resistance is critical. The alloy performs exceptionally well in downhole environments, particularly in sour service conditions where stress corrosion cracking resistance is essential. Its non-magnetic properties make it ideal for precision measurement tools, directional drilling equipment, and MWD (Measurement While Drilling) components where magnetic interference would compromise operational accuracy.
Standards
Magnadur 501 is manufactured as a non-standard special steel from Deutsche Edelstahlwerke GmbH. It complies with the following standards:
- ASTM A 262 practice A and E (corrosion testing)
- PREN value: 19-23 (Pitting Resistance Equivalent Number)
- PREN formula: %Cr + 3.3x %Mo + 16x %N
Chemical Composition and Grade Comparison
Chemical Composition (in weight-%)
| Element | C | Si | Mn | P | S | Cr | Ni | Mo | N |
|---|---|---|---|---|---|---|---|---|---|
| Min. | – | 0.20 | 18.5 | – | – | 19.0 | 0.25 | 0.35 | 0.32 |
| Max. | 0.04 | 0.60 | 22.0 | 0.03 | 0.005 | 22.0 | 0.50 | 0.50 | 0.40 |
Mechanical Properties
Magnadur 501 offers excellent mechanical properties in forged and work-hardened condition at room temperature:
Physical Properties
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.8 kg/dm³ at 20°C | 0.282 lb/in³ at 68°F |
| Young’s modulus | 195 GPa at 20°C | 28.3 x 10⁶ ksi at 68°F |
| Thermal conductivity | 14.0 W/(m·K) at 20°C | 97.16 BTU·in/(h·ft²·°F) at 68°F |
Mechanical Properties in Forged and Work-Hardened Condition
| Diameter Range | 50-175 mm (2-6⅞”) | 176-279.4 mm (7-11″) |
|---|---|---|
| Hardness in HB | ≥ 275 | ≥ 275 |
| Min. Yield Strength (Rp0.2) | 825 MPa (120 ksi) | 770 MPa (112 ksi) |
| Min. Tensile Strength (Rm) | 930 MPa (135 ksi) | 900 MPa (130 ksi) |
| Min. Elongation (A5) | 25% | 25% |
| Min. Reduction of Area (Z) | 50% | 50% |
| Min. Impact Energy (AV) | 135 J (100 ft-lbs) | 135 J (100 ft-lbs) |
| Min. Fatigue Strength | 350 MPa (50 ksi) | 350 MPa (50 ksi) |
Corrosion Resistance
Magnadur 501 offers high resistance to pitting and crevice corrosion according to ASTM A 262 practice A and E testing. It demonstrates good resistance against stress corrosion cracking, especially when suitable surface treatments like shot or hammer peening are applied. The pitting corrosion resistance makes it suitable for standard drill collar applications in petroleum industry.
Available Dimensions
SHUNFU METAL supplies Magnadur 501 in the following dimensions:
- Round Bars: Diameter range from 20 mm to 300 mm (0.8″ to 12″)
- Hollow Bars: Outer diameter from 50 mm to 280 mm (2″ to 11″) with various wall thicknesses
Custom dimensions are available upon request to meet specific project requirements.
Special Properties
Magnadur 501’s key distinguishing feature is its non-magnetic property (μ < 1.01) combined with high strength and high corrosion resistance. This unique combination makes it exceptionally suitable for applications where both magnetic neutrality and mechanical resilience are required, particularly in harsh downhole environments.
Why Choose SHUNFU METAL for Magnadur 501
When sourcing Magnadur 501 non-magnetic stainless steel for your petroleum measurement applications, SHUNFU METAL delivers unmatched quality and service. Our stock of Magnadur 501 meets the strictest industry standards and undergoes rigorous quality control to ensure consistent performance in challenging environments. We understand the critical nature of non-magnetic components in measurement while drilling operations and offer complete material traceability and certification.
Our technical experts can help you select the right specification of Magnadur 501 for your specific application requirements, ensuring optimal performance and longevity of your equipment. With competitive pricing, reliable global shipping, and responsive customer service, we strive to be your trusted partner for specialty steel solutions.
Contact us today with your Magnadur 501 requirements. Our team is ready to provide detailed quotations and technical support to help you make the best material selection for your projects.
We are committed to integrate steel resources in china and serve the global steel market. Our company has more than 15 years of experience in steel researching, production, managing and sales. And our team mostly are based on and worked in national famous steel enterprise before. In the aspect of resources and information, we have established cooperative relationship with nearly hundred enterprises, either state-owned or private owned in China.
What’s more, we have built long, deep and close business relationship with dozens of steel company, Sharing and holding equities with several steel enterprises. Because of the close cooperation with steel companies and our pioneering spirit, which can ensure us stay at the top competition, and ensure our customers get what they really want. We provide preffesional one-stop service to the Contractors of follows project:
- Oil and Gas Pipeline Construction
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Our ability to purchase materials directly from leading mills at the best possible price will give you the competitive edge. This coupled with a skilled workforce dedicated to embracing the demands of the markets we serve. Just give us a call +86-731-89903933.
