Sandvik,15LM Strip Steel Rod/Bar

Sandvik 15LM Strip Steel Rod Product Information -:- For detailed product information, please contact sales. -: Sandvik 15LM Strip Steel Rod Synonyms -:- For detailed product information, please contact sales. -:

Sandvik 15LM Strip Steel Product Information -:- For detailed product information, please contact sales. -: ## **Sandvik 15LM Strip Steel – High-Performance, Low-Magnetic Martensitic Stainless Steel** ### **Product Overview** Sandvik 15LM is a specialized **low-magnetic martensitic stainless steel strip** engineered for applications requiring a unique combination of **moderate corrosion resistance, good mechanical properties, and significantly reduced magnetic permeability**. This grade is designed to maintain minimal magnetic response while offering better corrosion resistance than standard ferritic grades, making it ideal for specialized electrical, electronic, and instrumentation applications where magnetic interference must be minimized. ### **Key Advantages** * **Low Magnetic Permeability:** Exhibits significantly reduced magnetic response compared to standard martensitic and ferritic stainless steels, making it suitable for applications sensitive to magnetic fields. * **Good Corrosion Resistance:** Provides better general corrosion resistance than many low-carbon steels and some ferritic grades, suitable for mild corrosive environments. * **Controlled Mechanical Properties:** Can be supplied in various tempers to achieve desired strength and formability combinations. * **Good Fabricability:** Can be stamped, bent, and formed using standard tooling with appropriate adjustments for its work-hardening characteristics. * **Consistent Performance:** Sandvik's precision manufacturing ensures uniform magnetic and mechanical properties throughout the strip. ### **Chemical Composition (Typical, wt%)** The composition is carefully balanced to achieve low magnetic permeability while maintaining corrosion resistance. | Element | Content (%) | Element | Content (%) | |---------|-------------|---------|-------------| | **Carbon (C)** | 0.15 max | **Chromium (Cr)** | 14.0-16.0 | | **Nickel (Ni)** | 0.50 max | **Molybdenum (Mo)** | 0.30-0.60 | | **Silicon (Si)** | 0.50 max | **Manganese (Mn)** | 0.50 max | | **Copper (Cu)** | 0.25 max | **Sulfur (S)** | 0.015 max | | **Phosphorus (P)** | 0.025 max | **Iron (Fe)** | Balance | *Note: The controlled low carbon content and specific alloying balance contribute to the low magnetic properties.* ### **Physical & Mechanical Properties** #### **Physical Properties:** * **Density:** 7.75 g/cm³ * **Thermal Conductivity:** 16.3 W/m·K (at 20°C) * **Electrical Resistivity:** 0.70 μΩ·m (at 20°C) * **Coefficient of Thermal Expansion:** 10.5 × 10⁻⁶/K (20-100°C) * **Magnetic Permeability (Relative):** **Typically 1.05-1.15** (significantly lower than standard martensitic grades) #### **Mechanical Properties (by temper condition):** ##### **Annealed Condition (A):** * **Tensile Strength:** 500-700 MPa * **Yield Strength (0.2%):** 300-500 MPa * **Elongation:** 20-30% * **Hardness:** 160-200 HV ##### **½ Hard Condition (H/2):** * **Tensile Strength:** 700-900 MPa * **Yield Strength (0.2%):** 600-800 MPa * **Elongation:** 10-15% * **Hardness:** 220-260 HV ##### **Full Hard Condition (H):** * **Tensile Strength:** 900-1100 MPa * **Yield Strength (0.2%):** 850-1050 MPa * **Elongation:** 3-8% * **Hardness:** 280-320 HV ### **Corrosion Resistance** * Comparable to Type 410 stainless steel in most environments * Resists atmospheric corrosion, fresh water, mild chemicals, and food acids * Not recommended for severe chloride environments or strongly oxidizing conditions * Better corrosion resistance than standard electrical steels with similar magnetic properties ### **International Standards & Approvals** * **Sandvik Proprietary Grade:** **15LM** * **Similar/Equivalent Standards:** * **EN 10088-2:** 1.4003 * **ASTM A176:** 410S * **UNS:** S41008 * **ISO 4957:** Tool steels - Stainless * **Industry Specifications:** Often approved under customer-specific specifications for electronic and electrical components ### **Product Applications** 15LM is specifically designed for applications where low magnetic permeability is critical: #### **Electrical & Electronic Components:** * Transformer laminations and cores * Magnetic shielding components * Relay and contactor parts * Sensor housings and components * MRI and medical imaging equipment components #### **Instrumentation & Measurement:** * Precision instrument components * Laboratory equipment parts * Test and measurement device components * Scale and balance components #### **Automotive & Aerospace:** * Fuel system components * Sensor mounts and brackets * Electronic control unit housings * Navigation and guidance system components #### **General Engineering:** * Fasteners and hardware for electronic equipment * Non-magnetic tools and implements * Specialized machinery components * Food processing equipment parts ### **Processing Guidelines** #### **Forming & Fabrication:** * **Cold Forming:** Good formability in annealed condition; requires more force in harder tempers * **Bending:** Minimum bend radius typically 2× thickness for annealed, 3× for hard tempers * **Stamping:** Suitable with proper die design and clearance * **Machining:** Fair machinability (approximately 50% of free-cutting steel); use sharp tools with positive rake angles #### **Heat Treatment:** * **Annealing:** 750-850°C followed by slow cooling to optimize magnetic properties * **Stress Relieving:** 300-400°C for 1-2 hours after severe forming * **Hardening:** Not typically performed; properties are achieved through cold working #### **Joining:** * **Welding:** Can be welded using standard stainless steel techniques (TIG, MIG, resistance) * **Brazing:** Suitable with appropriate filler metals * **Soldering:** Good solderability with standard fluxes #### **Surface Treatment:** * Accepts most common finishes including passivation, electroplating, and painting * Can be polished to high surface finishes ### **Availability** * **Thickness Range:** 0.10 mm to 3.0 mm (standard) * **Width Range:** Up to 600 mm (depending on thickness) * **Temper Conditions:** Annealed (A), ¼ Hard (H/4), ½ Hard (H/2), ¾ Hard (H/3), Full Hard (H) * **Surface Finish:** 2B, BA, or custom finishes available * **Edges:** Mill edge, slit edge, or precision sheared * **Packaging:** Coils, sheets, or custom blanks with appropriate protective wrapping ### **Special Considerations** 1. **Magnetic Properties Testing:** Magnetic permeability should be verified for critical applications 2. **Directional Properties:** Magnetic and mechanical properties may show slight anisotropy 3. **Temperature Effects:** Magnetic properties may change with temperature; consult technical data for specific applications 4. **Stress Effects:** Cold working and residual stresses can affect magnetic properties --- **Technical Advisory:** For applications with critical magnetic requirements, extensive testing under actual operating conditions is recommended. Sandvik provides application engineering support to help optimize material selection and processing parameters for specific low-magnetic applications. **Quality Assurance:** Sandvik 15LM is produced under strict quality control with traceability maintained throughout the manufacturing process. Certificates of conformity with chemical analysis and mechanical property data are provided with each shipment. **Disclaimer:** The information provided is for general guidance. Specific application requirements may vary. Always consult the latest Sandvik technical data sheets and conduct appropriate testing for critical applications. -:- For detailed product information, please contact sales. -: Sandvik 15LM Strip Steel Specification Dimensions Size： Diameter 20-1000 mm Length <7445 mm Size:We can customized as required Standard： Per your request or drawing We can customized as required Properties（Theoretical） Chemical Composition -:- For detailed product information, please contact sales. -: Sandvik 15LM Strip Steel Properties -:- For detailed product information, please contact sales. -:

Applications of Sandvik 15LM Strip Steel Rod -:- For detailed product information, please contact sales. -: Chemical Identifiers Sandvik 15LM Strip Steel Rod -:- For detailed product information, please contact sales. -:

Packing of Sandvik 15LM Strip Steel Rod -:- For detailed product information, please contact sales. -: Standard Packing: -:- For detailed product information, please contact sales. -: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and Steel Rod drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 3916 gallon liquid totes Special package is available on request. E FORUs’ is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition