Alloy 301,Duranickel 301 Strip,,E FORU

British Specs:，American Specs:，German Specs:

**Technical Datasheet: Duranickel® 301 (UNS N03301) Strip** --- ### **Overview** Duranickel® 301 Strip (Alloy 301, UNS N03301) is a high-performance precipitation-hardenable nickel alloy supplied in thin strip form, characterized by its exceptional strength, excellent spring properties, and outstanding corrosion resistance. This age-hardenable alloy achieves the highest strength levels among commercial nickel alloys through precise heat treatment, making it particularly valuable for applications requiring reliable performance in demanding environments with limited space and weight constraints. --- ### **Chemical Composition (Weight %)** | Element | Content (%) | Role | |---------|-------------|------| | Nickel (Ni) | 93.0–96.0 | Base element, corrosion resistance | | Titanium (Ti) | 4.0–5.0 | Primary age-hardening element | | Aluminum (Al) | 0.5–1.0 | Secondary hardening element | | Carbon (C) | ≤0.30 | Strength enhancement | | Manganese (Mn) | ≤0.50 | Hot workability improvement | | Silicon (Si) | ≤0.50 | Deoxidizer | | Iron (Fe) | ≤0.50 | Residual element | | Sulfur (S) | ≤0.015 | Controlled impurity | | Magnesium (Mg) | 0.10–0.20 | Grain refinement, hot workability | --- ### **Physical Properties** | Property | Value | |----------|-------| | Density | 8.20 g/cm³ (0.296 lb/in³) | | Melting Point | 1440°C (2620°F) | | Thermal Conductivity | 29.7 W/m·K (at 20°C) | | Coefficient of Thermal Expansion | 13.5 μm/m·°C (20–100°C) | | Specific Heat Capacity | 460 J/kg·K | | Electrical Resistivity | 0.75 μΩ·m | | Modulus of Elasticity | 186 GPa (27×10⁶ psi) | | Magnetic Permeability | <1.002 (effectively non-magnetic) | --- ### **Mechanical Properties** **Solution Annealed Condition:** - **Tensile Strength**: 620–760 MPa (90–110 ksi) - **Yield Strength (0.2% Offset)**: 240–380 MPa (35–55 ksi) - **Elongation**: 25–35% - **Hardness**: HRB 85–95 - **Springback Characteristics**: Predictable and consistent **Age-Hardened Condition:** - **Tensile Strength**: 1240–1520 MPa (180–220 ksi) - **Yield Strength (0.2% Offset)**: 1030–1380 MPa (150–200 ksi) - **Elongation**: 10–20% - **Hardness**: HRC 36–44 - **Fatigue Strength**: Excellent under cyclic loading --- ### **Heat Treatment Specifications** **Solution Annealing:** - Temperature: 870–980°C (1600–1800°F) - Soaking time: 10–20 minutes - Cooling: Rapid water quench **Age Hardening:** - Temperature: 595–620°C (1100–1150°F) - Time: 12–16 hours at temperature - Cooling: Air cool to room temperature --- ### **Product Applications** **Spring Applications:** - High-performance flat springs - Electrical contact springs - Instrument springs - Valve spring plates - Relay springs - Snap-action spring components **Electronics & Electrical:** - Connector components - Switch contacts - Relay arms - Battery contacts - Lead frame materials - Shielding components **Aerospace & Defense:** - Precision spring components - Instrumentation parts - Control system components - Guidance system parts - Avionics components **Medical Devices:** - Surgical instrument components - Medical spring elements - Implantable device parts - Diagnostic equipment components - Dental instrument springs **Automotive:** - Fuel injection components - Sensor springs - Electrical connector parts - Control system components - Precision mechanical parts --- ### **Corrosion Resistance** - Excellent resistance to seawater and marine atmospheres - Good performance in fresh water and steam environments - Superior corrosion resistance compared to high-strength steels - Resistance to stress corrosion cracking - Good performance in alkaline solutions - Suitable for mildly acidic conditions --- ### **Fabrication Characteristics** **Stamping & Blanking:** - Excellent for precision stamping operations - Clean blanking characteristics - Good die life characteristics - Suitable for high-speed production - Minimal burr formation **Forming:** - Excellent cold forming properties - Predictable springback characteristics - Good bend performance - Suitable for complex formed shapes - Age after forming for maximum properties **Welding:** - Gas Tungsten Arc Welding (GTAW) preferred - Resistance welding suitable - Use matching filler metals - Solution anneal before welding - Post-weld age hardening recommended **Heat Treatment Response:** - Consistent aging response - Minimal distortion during heat treatment - Good dimensional stability - Uniform properties throughout strip --- ### **International Standards** | Standard Organization | Standard Number | Description | |----------------------|-----------------|-------------| | **ASTM** | B865 | Standard Specification for Age-Hardening Nickel Alloy Strip | | **ASME** | SB-865 | Code-approved version for pressure applications | | **SAE** | AMS 5549 | Nickel Alloy Strip, Spring Temper | | **SAE** | AMS 5548 | Nickel Alloy Strip, Age Hardenable | | **UNS** | N03301 | Unified Numbering System | | **ISO** | 6208 | Nickel alloy strip specifications | | **DIN** | 17750 | Nickel alloy strip standards | --- ### **Available Specifications** **Strip Dimensions:** - **Thickness**: 0.05 mm to 2.0 mm (0.002" to 0.078") - **Width**: 2 mm to 300 mm (0.078" to 12") - **Length**: Coils or straight lengths **Temper Conditions:** - Solution annealed - 1/4 Hard - 1/2 Hard - Full Hard - Age hardened **Surface Finish:** - Cold rolled finish - Bright annealed - Special polished finishes - Custom surface treatments available --- ### **Quality Assurance** - Dimensional accuracy certification - Chemical composition verification - Mechanical property testing - Surface quality inspection - Heat treatment certification - Edge condition verification - EN 10204 3.1/3.2 certification available --- ### **Key Advantages** 1. **Highest Strength**: Maximum strength among nickel alloy strips after age hardening 2. **Excellent Spring Properties**: Superior spring characteristics and fatigue resistance 3. **Precision Manufacturing**: Tight dimensional tolerances and consistent properties 4. **Corrosion Resistance**: Superior to high-strength steels in corrosive environments 5. **Reliability**: Consistent performance in demanding applications --- **Notes:** - "Duranickel" is a registered trademark of Special Metals Corporation - Proper heat treatment is essential for achieving optimal spring properties - Store in clean, dry conditions to prevent surface contamination - Consult technical experts for specific application requirements *For detailed technical assistance and application engineering support, contact materials engineering specialists.*

Packing of Standard Packing: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel 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 2905 gallon liquid totes Special package is available on request.