Nickel Alloy 716 Round Bar
Alloy 716 is a nickel-chromium-iron alloy strengthened by additions of niobium and molybdenum. It offers exceptional high-temperature strength, oxidation resistance, and fatigue resistance, making it suitable for aerospace, power generation, and petrochemical industries. Compared with Inconel 718, Alloy 716 provides improved stress rupture and creep performance.
| Alloy 716 Bar Specification: |
| Grade | alloy 716 |
|---|---|
| Specification | ASTM B637 |
| Round bar size | Diameter: 3mm~800mm |
| Angle bar size | 3mm*20mm*20mm~12mm*100mm*100mm |
| Square bar size | 4mm*4mm~100mm*100mm |
| Flat bar size | Thickness: 2mm~100mm |
| Width: 10mm~500mm | |
| Bar size | 2mm~100mm |
| Finish | Bright, Polish, Rough Turned, Grinding, Centreless Ground & Black |
| Surface | Hot Rolled Pickled or Sand Blasting Finished, Cold Drawn, Bright, Polished, Hairline |
| Condition | Cold Drawnd Pulished Cold Drawn Centreless Ground & Polished, Annealed round bar |
| Technique | Hot Rolled, Cold Rolled, Cold Drawn, Forged Round Bar, Rod |
| Form | Round, Rod, Precision Ground Bar, Square, Round Rod, Hollow, Hex (A/F), Triangle, Rectangle, Threaded, T-Bar, Half Round Bar, Flat Bar, Rings, Blocks, Billet, Ingot, I/H Bar, Angle, Channel Bar, Profiles, Forging Etc. |
| Alloy 716 Rod Chemical Composition: |
| Grade | C | Mn | Si | S | Ni | Al | Cr | P | Ti | Mo |
| 716 | 0.03 | 0.2 | 0.2 | 0.01 | 59.0-63.0 | 0.35 | 19.0-22.0 | 0.015 | 1.0-1.6 | 7.0-9.5 |
| UNS N09945 Bar Physical Properties: |
| Property | Value |
|---|---|
| Density | 8.44 g/cm³ (0.305 lb/in³) |
| Melting Range | 1290-1350°C (2354-2462°F) |
| Thermal Conductivity at 20°C | 10.8 W/m·K (6.2 BTU/hr/ft/°F) |
| Electrical Resistivity | 1.30 μΩ·m at 20°C |
| Coefficient of Thermal Expansion (20-100°C) | 13.1 × 10⁻⁶ /°C (7.3 × 10⁻⁶ /°F) |
| Specific Heat | 410 J/kg·K (0.098 BTU/lb/°F) |
| Young’s Modulus | 205 GPa (29.7 × 10⁶ psi) |
| Alloy 716 Rod Mechanical Properties: |
| Property | Minimum Value | Typical Value |
|---|---|---|
| 0.2% Yield Strength | 120,000 PSI (827 MPa) | 125,000 PSI (862 MPa) |
| Tensile Strength | 150,000 PSI (1034 MPa) | 160,000 PSI (1103 MPa) |
| Elongation | 20% | 25% |
| Reduction of Area | 35% | 40% |
| Hardness (NACE Compliant) | 32 HRC | 32 – 43 HRC |
| Charpy V-Notch Impact @ -60°C | 37 Joules | 43 Joules |
| Applications of Alloy 716 Bar |
Alloy 716 is widely used in industries that demand exceptional strength, corrosion resistance, and high-temperature performance. Its unique combination of mechanical and metallurgical properties makes it ideal for critical components in:
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Aerospace Industry: Turbine discs, shafts, fasteners, and jet engine components requiring superior creep and oxidation resistance.
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Power Generation: Gas and steam turbine parts, bolts, and structural components exposed to high-stress and elevated temperatures.
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Oil & Gas Sector: Downhole tools, valves, and equipment used in sour gas environments compliant with NACE MR0175 / ISO 15156.
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Petrochemical & Chemical Processing: Reactor vessels, heat exchangers, and pumps requiring corrosion resistance in both oxidizing and reducing atmospheres.
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Marine & Offshore Engineering: Components exposed to chloride-rich and high-pressure conditions.
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Industrial Heating Systems: Furnace fixtures, burner components, and other parts operating under thermal cycling.
| Key Advantages of Alloy 716(625+) |
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Balanced Strength and Corrosion Resistance: Combines the high mechanical strength of Alloy 718 with the outstanding corrosion resistance of Alloy 625 — offering superior all-around performance.
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Exceptional Corrosion Protection: Provides strong resistance against pitting, crevice attack, stress corrosion cracking, and general corrosion in both oxidizing and reducing environments.
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Certified for Sour Gas Service: Fully compliant with NACE MR0175 / ISO 15156, making it reliable for oil and gas applications involving hydrogen sulfide (H₂S).
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High Mechanical Performance: Precipitation hardening delivers excellent tensile and yield strength while maintaining ductility and toughness.
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Excellent Elevated Temperature Capability: Retains strength and structural integrity at high temperatures, suitable for turbine and high-heat environments.
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Superior Fatigue Strength: Withstands cyclic stresses and vibrations, ensuring extended service life in demanding applications.
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Easy to Fabricate: Readily machinable, formable, and weldable using standard nickel-alloy techniques with proper procedures.
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Dimensional Stability: Offers minimal distortion during heat treatment and maintains tight tolerances during long-term service.
| FAQ |
Q1: What is Alloy 716?
A1: Alloy 716 is a precipitation-hardened nickel-chromium-iron alloy that offers superior creep rupture and stress rupture strength compared to Alloy 718.
Q2: What is the difference between Alloy 716 and Inconel 718?
A2: Alloy 716 has optimized niobium and titanium ratios, providing better long-term stability and creep resistance under high-temperature conditions than Alloy 718.
Q3: What are the typical working temperatures for Alloy 716 bars?
A3: It maintains mechanical properties up to 650 °C (1200 °F), ideal for turbine and aerospace use.
Q4: Can Alloy 716 be welded and machined?
A4: Yes. It can be TIG/MIG welded and precision-machined with appropriate nickel-alloy techniques.
Q5: What certifications are available from SakySteel?
A5: Alloy 716 bars can be supplied with EN 10204 3.1/3.2 certificates, ultrasonic testing, and full traceability to melt and heat numbers.
| SASA ALLOY’S Quality Assurance |
1. Visual Dimension Test
2. Mechanical examining like tensile, Elongation and reduction of area.
3. Impact analysis
4. Chemical examination analysis
5. Hardness test
6. Pitting protection test
7. Penetrant Test
8. Intergranular Corrosion Testing
9. Roughness Testing
10. Metallography Experimental Test
| Why Choose Us |
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Material Expertise: Our metallurgists and engineers possess deep expertise in nickel-based superalloys, ensuring the right material solutions for every demanding application.
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Advanced Manufacturing: Equipped with modern production facilities and rigorous quality control systems to guarantee uniform properties and consistent performance.
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Comprehensive Quality Testing: Every product is thoroughly inspected for mechanical strength, dimensional precision, and corrosion resistance to meet critical industry requirements.
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Tailored Solutions: We offer customized compositions, sizes, and heat treatments to match specific project or end-use needs.
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Technical Support: Dedicated experts provide guidance on material selection, heat treatment, welding, and fabrication processes.
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Global Supply Network: With worldwide logistics partners, we deliver materials efficiently and on time to clients across different industries and regions.
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Industry Certification & Compliance: All products conform to or exceed ASTM, ASME, API, and NACE specifications.
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Cost-Effective Performance: Delivering premium superalloy materials with outstanding quality-to-price value for long-term reliability.
| Alloy bar Package: |
1. Packing is quite important especially in a case of international shipments in which consignment pass through various channels to reach the ultimate destination, so we put special concern regarding packaging.
2. Sasa alloy’s pack our goods in numerous ways based on the products. We pack our products in multiple ways, such as,
