Project Description
Magnadur 501, 509, 601, XM19 Non-Magnetic Stainless Steels
Product Description
SHUNFU METAL offers a comprehensive range of premium non-magnetic stainless steels including Magnadur 501, Magnadur 509, Magnadur 601, and XM19 (Magnadur 3964 mod). These specialized alloys feature exceptional non-magnetic properties with permeability μ < 1.01, combined with superior strength and corrosion resistance. Each grade in this series is engineered for specific environmental challenges, with progressive improvements in stress corrosion cracking resistance and pitting resistance from Magnadur 501 through to Magnadur 601. XM19 (Magnadur 3964 mod) offers a different composition profile with higher nickel content (11.5-13.5%) and chromium (20.5-23.5%), providing alternative properties for specialized applications. These non-standardized grades are qualified for common OEM specifications and applications in demanding industries.
Applications
This family of non-magnetic stainless steels is specifically designed for petroleum measurement applications where magnetic interference must be eliminated while maintaining structural integrity in corrosive environments. Primary applications include:
- Downhole measurement instruments and tools in petroleum exploration
- Measurement-While-Drilling (MWD) components
- Non-magnetic drill collars for directional drilling
- Precision measurement tools in aggressive environments
- Components for logging tools where magnetic neutrality is critical
- Specialty fasteners and connectors in downhole assemblies
- Survey instruments requiring non-magnetic materials
Magnadur 601 is particularly suitable for the most aggressive environments with significant stress corrosion challenges, while XM19 offers excellent strain-hardening capabilities for applications requiring specific mechanical property profiles.
Standards
While there is no standardization for these non-magnetic stainless steels, they comply with various industry testing protocols:
- ASTM A 262 practice A and E (corrosion testing)
- API standards for drill collar applications
- NACE requirements for sour service applications
- PREN evaluation (Pitting Resistance Equivalent Number):
- Magnadur 501: PREN 19-23
- Magnadur 509: PREN 28-33
- Magnadur 601: PREN 29.5-35
- XM19: PREN values typically exceeding 30
- PREN formula: %Cr + 3.3x %Mo + 16x %N
Chemical Composition and Grade Comparison
Chemical Composition of Magnadur Series (in weight-%)
| Grade | C max | Si | Mn | Cr | Ni | Mo | N | Key Features |
|---|---|---|---|---|---|---|---|---|
| Magnadur 501 | 0.04 | 0.20-0.60 | 18.5-22.0 | 19.0-22.0 | 0.25-0.50 | 0.35-0.50 | 0.32-0.40 | Base grade, good corrosion resistance |
| Magnadur 509 | 0.05 | 0-0.30 | 18.0-20.0 | 17.0-19.0 | 2.50-3.50 | 0.90-1.20 | 0.50-0.60 | Improved pitting resistance over 501 |
| Magnadur 601 | 0.05 | 0-0.30 | 18.0-20.0 | 16.5-17.5 | 4.20-5.00 | 2.00-2.80 | 0.40-0.50 | Superior stress corrosion resistance |
Chemical Composition of XM19 (Magnadur 3964 mod) in %
| Element | C | Si | Mn | P | S | Cr | Ni | Mo | V | Nb | N |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | ≤ | ≤ | 4.0 | ≤ | ≤ | 20.5 | 11.5 | 1.50 | 0.10 | 0.10 | 0.20 |
| Max | 0.06 | 1.00 | 6.0 | 0.045 | 0.030 | 23.5 | 13.5 | 3.00 | 0.30 | 0.30 | 0.40 |
Mechanical Properties
Each grade in the Magnadur series offers distinctive mechanical properties optimized for different application requirements:
Mechanical Properties of Magnadur Series
| Property | Magnadur 501 | Magnadur 509 | Magnadur 601 |
|---|---|---|---|
| Hardness (HB) | ≥ 275 | ≥ 290 | 300-400 |
| Min. Yield Strength (MPa/ksi) | 825-770 (120-112) | 900-830 (130-120) | 965-900 (140-130) |
| Min. Tensile Strength (MPa/ksi) | 930-900 (135-130) | 965-900 (140-130) | 1035 (150) |
| Min. Elongation (%) | 25 | 20 | 20 |
| Min. Reduction of Area (%) | 50 | 50 | 50 |
| Min. Impact Energy (J/ft-lbs) | 135 (100) | 135 (100) | 135 (100) |
| Min. Fatigue Strength (MPa/ksi) | 350 (50) | 445 (65) | 445 (65) |
Mechanical Properties of XM19 (Magnadur 3964 mod)
| Property | Condition A (Ø 20-247.65 mm) | High Strength (Ø 20-210 mm) |
|---|---|---|
| 0.2% Yield Strength (MPa/ksi) | ≥ 380 (≥ 55) | ≥ 725 (≥ 105) |
| Tensile Strength (MPa/ksi) | ≥ 690 (≥ 100) | 850-1150 (120-165) |
| Elongation (L₀ = 4d) (%) | ≥ 35 | ≥ 20 |
| Reduction of Area (%) | ≥ 55 | ≥ 50 |
| Impact Toughness (J/ft-lbs) | ≥ 115 (≥ 110) | ≥ 80 (≥ 60) |
| Hardness (BHN/HRC) | ≥ 250 | 260-325 (26-35) |
Available Dimensions
SHUNFU METAL supplies these non-magnetic stainless steel grades in the following dimensions:
- Magnadur 501: Round bars from 20 mm to 300 mm (0.8″ to 12″) diameter
- Magnadur 509: Round bars from 20 mm to 280 mm (0.8″ to 11″) diameter
- Magnadur 601: Round bars from 20 mm to 280 mm (0.8″ to 11″) diameter
- XM19 (Magnadur 3964 mod):
- Condition A: Diameter range 20-247.65 mm (⁷/₈-9³/₄”)
- High Strength: Diameter range 20-210 mm (⁷/₈-8⁵/₈”)
Forms of delivery include hot rolled bars, solution annealed, strain-hardened, and machined products. Custom dimensions and specifications are available upon request.
Corrosion Resistance Comparison
The non-magnetic stainless steel grades offer progressive improvements in corrosion resistance:
- Magnadur 501: PREN 19-23, good resistance to pitting and crevice corrosion according to ASTM A 262 practice A and E testing.
- Magnadur 509: PREN 28-33, excellent resistance against intergranular corrosion with critical pitting corrosion potential significantly higher than Magnadur 501.
- Magnadur 601: PREN 29.5-35, exceptional resistance against stress corrosion cracking, with tensile stresses typically remaining below 0.5 x yield strength. Superior pitting corrosion resistance due to higher molybdenum content compared to Magnadur 509.
- XM19 (Magnadur 3964 mod): Excellent general corrosion resistance with high chromium content (20.5-23.5%) and good molybdenum levels (1.50-3.00%), making it suitable for aggressive environments.
Why Choose SHUNFU METAL for Non-Magnetic Stainless Steels
When sourcing non-magnetic stainless steels for your critical petroleum measurement applications, SHUNFU METAL delivers unmatched quality and expertise. We understand that selecting the right grade among Magnadur 501, 509, 601, or XM19 requires careful consideration of environmental factors, mechanical requirements, and cost considerations. Our technical experts are ready to guide you through the selection process, ensuring you get the optimal material for your specific application.
Our inventory of non-magnetic stainless steels undergoes rigorous quality control to ensure consistent performance in challenging environments. We provide complete material traceability and certification for all grades, giving you confidence in the reliability of your critical components. 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 non-magnetic stainless steel requirements. Whether you need Magnadur 501 for standard applications, Magnadur 509 for improved pitting resistance, Magnadur 601 for superior stress corrosion cracking resistance, or XM19 for alternative mechanical profiles, 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.
