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ASTM B446 Inconel 625 Round Bar, 1-12" Diameter, Aerospace UseAlloy UNS N06625 Bars
In the high-stakes aerospace industry, material reliability directly impacts flight safety and performance. Our ASTM B446-compliant Inconel 625 round bars (UNS N06625) are engineered to exceed the most rigorous demands of aircraft and spacecraft manufacturing, offering unmatched strength, corrosion resistance, and thermal stability across a 1-12" diameter range.
Core Material Advantages: The Science Behind UNS N06625
Inconel 625 is a nickel-chromium-molybdenum-niobium alloy renowned for its solid-solution strengthening mechanism—no post-weld heat treatment required to maintain peak performance . Its precise chemical composition (minimum 58% nickel, 20-23% chromium, 8-10% molybdenum, and 3.15-4.15% niobium-tantalum) creates a robust matrix that resists degradation in extreme conditions .
Key physical and mechanical properties include:
Density: 8.44 g/cm³ (0.305 lbs/in³)
Tensile Strength: Minimum 760 MPa (110 ksi), reaching up to 960 MPa for annealed variants
Yield Strength: 345-414 MPa (50-60 ksi) at 0.2% offset
Elongation: 30% minimum, ensuring ductility for complex fabrication
Temperature Resilience: Maintains structural integrity from cryogenic environments to 982°C (1800°F), with short-term resistance up to 1095°C (2000°F)
Critical for aerospace, this alloy is non-magnetic (magnetic permeability 1.0006 when annealed) and exhibits low thermal expansion (7.3-7.7 x 10⁻⁶ in/in/°F from 20-427°C), minimizing stress from temperature fluctuations .
ASTM B446 Compliance & Dimensional Precision
Our round bars adhere strictly to ASTM B446, the industry standard for nickel-alloy hot-rolled and cold-drawn bars . This ensures consistent quality across:
Diameters: 1" to 12", with tight tolerance control (±0.005" for precision grades) to reduce machining waste.
Surface Finish: Annealed and descaled surfaces (Ra ≤ 1.6 μm) or polished options for critical aerospace components.
Lengths: Standard 12’-24’ or custom-cut to your specifications, with straightness tolerance ≤ 0.015"/ft.
Each bar is traceable via a unique heat number, with certification including chemical analysis, mechanical test results, and dimensional reports—essential for aerospace quality management systems (e.g., AS9100).
Aerospace Applications: Built for Extreme Flight Conditions
Inconel 625’s versatility makes it indispensable for mission-critical aerospace components :
Engine Systems: Turbine casings, combustion chamber liners, and exhaust manifolds rely on its 982°C heat resistance and creep resistance to withstand continuous high-temperature operation.
Structural Components: Landing gear actuators and wing spar fasteners leverage its high tensile strength and fatigue resistance (even after welding).
Fluid Management: Fuel and hydraulic lines use 1"-4" diameter bars for corrosion resistance against jet fuels and hydraulic fluids.
Spacecraft Hardware: Rocket thrust chamber tubes and satellite antenna mounts benefit from its low-temperature toughness and resistance to space debris impact.
Aerospace manufacturers also value its weldability—welded joints retain 80% of base metal strength without cracking, eliminating the need for costly post-weld treatments .
Quality Assurance & Value Proposition
Every round bar undergoes rigorous testing:
Ultrasonic inspection (per AMS 2631) to detect internal defects.
Eddy current testing for surface flaw detection.
Batch-specific corrosion testing in simulated aerospace environments (e.g., salt spray, jet fuel exposure).
We supply both annealed (Grade 1) and solution-treated (Grade 2) variants, with Grade 2 optimized for high-temperature creep resistance up to 1000°C . Our 1-12" diameter range eliminates the need for multiple suppliers, while just-in-time delivery supports tight aerospace production schedules.
Why Choose Our UNS N06625 Round Bars?
Aerospace engineers trust our products for:
Regulatory Readiness: Compliance with ASTM B446, AMS 5666, and AS9100 standards.
Performance Consistency: Tight control over niobium and molybdenum content ensures uniform strength.
Cost Efficiency: Precision sizing reduces machining time and material waste.
Technical Support: Our metallurgists provide application guidance for complex designs (e.g., turbine components).
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...
