Alloy 301,Duranickel 301 Rod,,E FORU

British Specs:，American Specs:，German Specs:

**Technical Datasheet: Duranickel® 301 (UNS N03301) Rod** --- ### **Overview** Duranickel® 301 Rod (Alloy 301, UNS N03301) is a premium precipitation-hardenable nickel alloy supplied in round bar form, offering an exceptional combination of high strength, excellent corrosion resistance, and superior mechanical properties. Through precise age-hardening heat treatment, this alloy achieves the highest strength levels among commercial nickel alloys while maintaining good ductility and toughness, making it ideal for high-stress structural applications. --- ### **Chemical Composition (Weight %)** | Element | Content (%) | Role | |---------|-------------|------| | Nickel (Ni) | 93.0–96.0 | Matrix 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 | Deoxidizer, hot workability | | Silicon (Si) | ≤0.50 | Deoxidizer | | Iron (Fe) | ≤0.50 | Residual element | | Sulfur (S) | ≤0.015 | Impurity control | | Magnesium (Mg) | 0.10–0.20 | Grain refinement, sulfur control | --- ### **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 (Typical):** - **Tensile Strength**: 620–760 MPa (90–110 ksi) - **Yield Strength (0.2% Offset)**: 240–380 MPa (35–55 ksi) - **Elongation**: 25–35% - **Reduction of Area**: 40–60% - **Hardness**: HRB 85–95 **Age-Hardened Condition (Typical):** - **Tensile Strength**: 1240–1520 MPa (180–220 ksi) - **Yield Strength (0.2% Offset)**: 1030–1380 MPa (150–200 ksi) - **Elongation**: 10–20% - **Reduction of Area**: 25–40% - **Hardness**: HRC 36–44 --- ### **Heat Treatment Specifications** **Solution Annealing:** - Temperature: 870–980°C (1600–1800°F) - Holding time: 30 minutes per inch of thickness - Cooling: Rapid water quench **Age Hardening:** - Temperature: 595–620°C (1100–1150°F) - Time: 12–16 hours at temperature - Cooling: Air cool --- ### **Product Applications** **High-Strength Fasteners:** - Aircraft bolts and studs - Marine fastening systems - High-temperature bolts - Critical structural fasteners **Valve Components:** - Valve stems and shafts - High-pressure valve parts - Control valve components - Pump shafts **Aerospace Components:** - Landing gear components - Engine mounting hardware - Structural attachments - Actuator systems **Marine & Offshore:** - Propeller shafts - Marine pump rods - Subsea componentry - Corrosion-resistant fittings **Industrial Machinery:** - High-strength gears - Power transmission shafts - Heavy-duty fasteners - Processing equipment components --- ### **Corrosion Resistance** - Excellent resistance to seawater and marine atmospheres - Good performance in fresh water and steam environments - Resistance to caustic alkalis and neutral salts - Superior to high-strength steels in corrosive environments - Good stress corrosion cracking resistance --- ### **Machining & Fabrication** **Machining Characteristics:** - Best machined in solution-annealed condition - Use positive rake angles and sharp tools - Recommended speeds: 30–50 SFM for turning - Use sulfur-free cutting fluids - Rigid tooling required for age-hardened material **Welding:** - Gas Tungsten Arc Welding (GTAW) preferred - Use matching filler metal (ENiCu-7) - Solution anneal before welding age-hardened material - Post-weld age hardening required for maximum properties **Forming:** - All severe forming should be done in annealed condition - Good cold working characteristics - Intermediate annealing may be required for extensive deformation --- ### **International Standards** | Standard Organization | Standard Number | Description | |----------------------|-----------------|-------------| | **ASTM** | B865 | Standard Specification for Age-Hardening Nickel Alloy Bars, Forgings, and Forging Stock | | **ASME** | SB-865 | Code-approved version for pressure components | | **SAE** | AMS 5545 | Nickel Alloy, Corrosion and Heat-Resistant, Bars, Forgings, and Rings 93Ni - 4.5Ti - 1.5Al Solution Heat Treated | | **SAE** | AMS 5546 | Same composition, age-hardened condition | | **UNS** | N03301 | Unified Numbering System | | **ISO** | 9724 | Nickel alloy bars for high-strength applications | | **DIN** | 17750 | Nickel alloy rod and bar specifications | --- ### **Available Rod Specifications** **Diameter Range:** - Standard sizes: 3.0 mm to 300 mm (0.125" to 12") - Special diameters available upon request **Lengths:** - Standard: 3–6 meters (10–20 feet) - Cut-to-length service available **Surface Condition:** - Turned and polished - Centerless ground - Hot finished - Black surface **Temper Conditions:** - Solution annealed - Age hardened - Custom heat treatments available --- ### **Quality Assurance** - Full traceability from melt to finished product - Chemical analysis certification - Mechanical property testing - Ultrasonic testing available - Dimensional verification - EN 10204 3.1/3.2 certification available --- ### **Key Advantages** 1. **Highest Strength**: Achieves the maximum strength among commercial nickel alloys 2. **Corrosion Resistance**: Superior to high-strength steels in aggressive environments 3. **Reliability**: Consistent performance under high stress conditions 4. **Manufacturability**: Good machining and welding characteristics 5. **Temperature Stability**: Maintains properties at moderately elevated temperatures --- **Notes:** - "Duranickel" is a registered trademark of Special Metals Corporation - Proper heat treatment is critical for achieving specified properties - Store in clean, dry conditions to prevent surface contamination - Technical data represents typical values; actual properties may vary by processing *Consult with materials engineers for specific application requirements and technical assistance.*

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 2899 gallon liquid totes Special package is available on request.