UNS N09946 Age-Hardenable Alloy - Stock Availability & Specifications for Downhole Tools
N09946 Nickel Alloy: High-Strength Solution for HPHT Oil & Gas Operations
Age-hardenable nickel-chromium alloy engineered for extreme downhole conditions
Why Procurement Teams Choose N09946 for Critical Applications
High-pressure, high-temperature (HPHT) wells demand materials that won't fail under extreme stress. Standard carbon steels crack. Inferior alloys corrode. N09946 nickel alloy delivers both exceptional strength and corrosion resistance where failure isn't an option.
UNS N09946 offers three strength designations—140K, 150K, and 160K—allowing precise material selection based on your specific pressure and temperature requirements. This age-hardenable alloy achieves yield strengths up to 160 ksi while maintaining excellent impact toughness for critical downhole components.
Key Specifications Buyers Need to Know
Chemical Composition
- Nickel: 52.0-55.0% (base element)
- Chromium: 19.5-22.5% (corrosion resistance)
- Niobium: 3.80-4.50% (primary strengthening)
- Molybdenum: 3.00-4.00% (pitting resistance)
- Titanium: 0.50-2.50% (age-hardening)
Mechanical Properties
- 140K Grade: 140 ksi yield, 165 ksi tensile
- 150K Grade: 150 ksi yield, 170 ksi tensile
- 160K Grade: 160 ksi yield, 180 ksi tensile
- Impact Toughness: 45 ft-lbs minimum (longitudinal)
- Elongation: 18% minimum
Critical Applications Where N09946 Excels
🔧 Downhole Tools
Safety valves, packers, and pressure-containing equipment for HPHT wells requiring exceptional strength and reliability.
🌊 Subsea Equipment
Wellhead systems, Christmas trees, and completion components exposed to corrosive seawater and H2S environments.
⚙️ Drilling Components
Drill string elements, completion hardware, and surface equipment requiring fatigue resistance under cyclic loading.
🏭 Petrochemical Processing
Reactor vessels, heat exchangers, and refinery equipment where chloride stress corrosion cracking resistance is essential.
Manufacturing Standards & Quality Assurance
Process Route A: Electric Furnace → AOD/VOD → ESR/EFR/VAR
Process Route B: Vacuum Induction Melting (VIM) → ESR/EFR/VAR
Compliance Standards:
- ✓ ASTM/ASME B637
- ✓ API 6A718
- ✓ ISO 15156 / NACE MR0175
- ✓ EN 10204 3.1/3.2 Certificates
Available Forms & Stock Dimensions
Forged Round Bars
Diameter: 80mm – 1200mm
Length: Up to 12 meters
Rolled Round Bars
Diameter: 10mm – 300mm
Length: Up to 12 meters
Hollow Bars
OD: Custom per requirements
Wall: As specified
Custom Forgings
Forms: Blocks, rings, discs
Capability: Near-net-shape
Standard sizes available from stock for immediate delivery
Heat Treatment for Optimal Performance
N09946's exceptional properties depend on precise heat treatment. Our controlled furnace operations ensure consistent results:
Two-Step Age Hardening Process:
- Solution Annealing: 1800°F-1950°F (982°C-1066°C) followed by rapid cooling
- Age Hardening: Dual-temperature treatment precipitates γ' and γ" strengthening phases
Result: Fine precipitate distribution throughout the matrix delivers the exceptional strength-to-toughness combination this alloy is known for.
Why SHUNFU METAL for Your N09946 Requirements
✓ Direct Manufacturer
ISO9001 certified facility with complete process control from raw material to final inspection.
✓ Expert Technical Support
22 metallurgy engineers available for specification review and application guidance.
✓ Extensive Inventory
8,000+ tons across 250+ grades ensures fast delivery on standard sizes.
✓ Global Experience
Trusted supplier to top 10 oilfield service companies across 52+ countries.
Ready to Secure Your N09946 Supply?
Get competitive pricing and availability for your specific requirements. Our team responds within 24 hours with detailed quotes and technical specifications.
View N09946 Specifications & Request Quote →📞 Direct Line: +86-731-89903933
📧 Technical Inquiries: info@shunfusteel.com
✈️ Worldwide shipping available
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