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Technical Specifications
Product Overview
Inconel 625 is a nickel-chromium-molybdenum superalloy with excellent corrosion resistance and high temperature strength. This precipitation-hardenable alloy offers outstanding performance in extreme environments including high temperature, high pressure, and highly corrosive conditions.
Key Features:
- Exceptional corrosion resistance in marine and chemical environments
- High temperature strength up to 980°C (1800°F)
- Excellent resistance to pitting, crevice corrosion, and stress corrosion cracking
- Outstanding fatigue and thermal-fatigue resistance
- Excellent weldability and fabricability
- Resistant to chloride-ion stress-corrosion cracking
Manufacturing Process: Manufactured using advanced melting techniques including VIM (Vacuum Induction Melting) and ESR (Electroslag Remelting) for superior cleanliness and homogeneity. Welded using precision TIG or plasma welding processes.
Applications: Aerospace propulsion systems, chemical processing equipment, marine applications, nuclear reactors, pollution control equipment, seawater applications, and high-temperature furnace components. Ideal for applications requiring resistance to high-temperature oxidation and corrosion.
🧪 Chemical Composition
| Element | Min % | Max % | Typical % | ASTM B443 Requirement |
|---|---|---|---|---|
| Nickel (Ni) | 58.0 | - | 61.0 | ?Y 58.0 |
| Chromium (Cr) | 20.0 | 23.0 | 21.5 | 20.0-23.0 |
| Molybdenum (Mo) | 8.0 | 10.0 | 9.0 | 8.0-10.0 |
| Niobium (Nb) | 3.15 | 4.15 | 3.65 | 3.15-4.15 |
| Iron (Fe) | - | 5.0 | 3.5 | ≤ 5.0 |
| Carbon (C) | - | 0.10 | 0.05 | ≤ 0.10 |
| Manganese (Mn) | - | 0.50 | 0.25 | ≤ 0.50 |
| Silicon (Si) | - | 0.50 | 0.25 | ≤ 0.50 |
| Phosphorus (P) | - | 0.015 | 0.008 | ≤ 0.015 |
| Sulfur (S) | - | 0.015 | 0.008 | ≤ 0.015 |
| Aluminum (Al) | - | 0.40 | 0.20 | ≤ 0.40 |
| Titanium (Ti) | - | 0.40 | 0.20 | ≤ 0.40 |
⚙️ Mechanical Properties
| Property | ASTM Requirement | Typical Value | Test Method | Temperature |
|---|---|---|---|---|
| Tensile Strength | 827 MPa min | 930 MPa | ASTM E8 | Room Temp |
| Yield Strength (0.2%) | 414 MPa min | 450 MPa | ASTM E8 | Room Temp |
| Elongation | 30% min | 42% | ASTM E8 | Room Temp |
| Hardness (Brinell) | - | 280 HB | ASTM E10 | Room Temp |
| Hardness (Rockwell C) | - | 28 HRC | ASTM E18 | Room Temp |
| Modulus of Elasticity | - | 208 GPa | ASTM E111 | Room Temp |
| Impact Energy (Charpy V) | - | 250+ J | ASTM E23 | Room Temp |
🔬 Physical Properties
| Property | Value | Unit | Temperature | Test Standard |
|---|---|---|---|---|
| Density | 8.44 | g/cm3 | 20°C | ASTM B311 |
| Melting Point | 1290-1350 | °C | - | DSC Analysis |
| Thermal Conductivity | 9.8 | W/m·K | 100°C | ASTM E1461 |
| Specific Heat | 410 | J/kg·K | 0-100°C | ASTM C351 |
| Linear Expansion | 12.8 | μm/m·K | 20-100°C | ASTM E228 |
| Electrical Resistivity | 1290 | n|°¤m | 20°C | ASTM B193 |
| Magnetic Permeability | 1.01 | μ/μ₀ | Room Temp | ASTM A342 |
| Curie Temperature | None | - | - | Non-magnetic |
📏 Product Specifications
| Specification | Available Range | Standard Length | Custom Available | Tolerance |
|---|---|---|---|---|
| Outside Diameter (OD) | 6mm - 914mm | Various | Yes | ±0.5mm |
| Wall Thickness | 1.0mm - 50mm | Various | Yes | ±10% |
| Length | 1m - 12m | 6m | Yes | +50mm/-0mm |
| Surface Finish | Pickled, Bright Annealed | Pickled | Yes | Ra ≤ 0.8μm |
| Weld Type | TIG, Plasma | TIG | Both | ASME standard |
| End Connection | Plain, Beveled, Threaded | Plain | Yes | ASME B36.19 |
| Standards Compliance | ASTM B443, B444, B704 | B443 | Multiple | Full compliance |
| Pressure Rating | Schedule 5S - 160 | Schedule 40 | Yes | ASME B31.3 |
| Test Certificate | Mill TC, EN 10204 3.1 | Mill TC | Yes | Standard |
| Packaging | Wooden Crates, Containers | Crates | Custom | Export standard |
Let Us Create Success for Your Project
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Our Advantages in Processing Inconel 625
Precision Manufacturing & Quality Control
Our state-of-the-art manufacturing facility features advanced vacuum melting furnaces and precision machining centers specifically designed for superalloy processing. Every Inconel 625 product undergoes rigorous dimensional inspection, chemical analysis, and mechanical testing. We maintain tolerances as tight as ±0.02mm and provide full material traceability with certified mill test certificates for complete quality assurance.
Custom Processing & Fast Turnaround
We offer comprehensive custom processing services including precision cutting, machining, heat treatment, and surface finishing. Our experienced engineering team works closely with customers to optimize specifications and reduce lead times. Standard orders ship within 7-14 days, while custom-machined components are delivered in 2-3 weeks - 50% faster than industry average.
Global Supply Chain & Technical Support
With strategic inventory locations worldwide and partnerships with leading mills, we ensure consistent supply availability and competitive pricing. Our metallurgical engineers provide comprehensive technical support including material selection guidance, application consulting, and troubleshooting. 24/7 customer service ensures your critical projects stay on schedule.
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