ASTM B564 Inconel 625 Flanges: Comprehensive Guide by Amardeep Steel Centre LLP
At Amardeep Steel Centre LLP, we take pride in supplying premium quality ASTM B564 Inconel 625 Flanges that meet the diverse requirements of industries worldwide. These flanges, known for their exceptional properties and robust performance in harsh environments, have become a cornerstone in various critical applications.
What is ASTM B564 625 Inconel Flanges?
ASTM B564 625 Inconel Flanges are components made from Inconel 625, a nickel-chromium-molybdenum alloy, which is well-known for its outstanding resistance to corrosion and high temperatures. The ASTM B564 standard specifies the requirements for forged or rolled nickel alloy flanges, fittings, and valves, ensuring that the products meet stringent mechanical and chemical properties.
625 Inconel Flanges are specifically designed for high-performance applications where extreme environments are present, such as chemical processing, marine engineering, and aerospace industries. These flanges are manufactured according to the ASTM B564 standard, ensuring reliability and consistency in their performance.

ASTM B564 625 Inconel Flanges Properties
The ASTM B564 625 Inconel Flanges possess several exceptional properties that make them highly desirable in various industrial applications:
- Corrosion Resistance: These flanges exhibit excellent resistance to a wide range of corrosive environments, including acidic, alkaline, and marine atmospheres. They effectively withstand pitting, crevice corrosion, and chloride-induced stress corrosion cracking.
- High-Temperature Strength: Inconel 625 retains its strength and structural integrity at elevated temperatures up to 982°C (1800°F), making it ideal for high-temperature applications in industries such as power generation, aerospace, and petrochemical.
- Oxidation Resistance: The alloy is resistant to oxidation in various temperature ranges, which makes it suitable for applications involving exposure to high-temperature oxidation and carburization.
- Fabricability and Weldability: The 625 Inconel Flanges offer excellent weldability and can be readily welded using standard welding techniques without the risk of cracking or degrading the alloy.
- Fatigue Strength: Inconel 625 exhibits remarkable fatigue resistance, making it suitable for applications that require components to endure cyclic loading or vibrations.
- Mechanical Properties: The mechanical properties of these flanges include high tensile strength, excellent toughness, and resistance to deformation under high loads.
ASTM B564 625 Inconel Flanges Advantages
The use of ASTM B564 625 Inconel Flanges offers numerous advantages that enhance the performance and longevity of equipment:
- Superior Durability: These flanges provide long-lasting performance, reducing the need for frequent maintenance or replacement, thereby lowering operational costs.
- Versatility: The unique combination of high strength and corrosion resistance allows these flanges to be used across various industries, from deep-sea oil drilling to aerospace and nuclear plants.
- Excellent Thermal Stability: With high thermal stability, Inconel ASTM B564 625 Flanges are ideal for applications involving extreme temperatures, where conventional flanges may fail.
- Resistance to Contamination: Due to their non-reactive nature, they do not contaminate or degrade in sensitive environments, making them suitable for the food processing and pharmaceutical industries.
- Cost-Efficiency: Despite the higher initial investment, these flanges offer cost-efficiency due to their extended service life and reduced need for replacements or repairs.


Schedule and Size Chart
Flange Type | Nominal Size (inches) | Pressure Rating (Class) | Schedule | Dimensions (OD x ID x Thickness) |
Slip-On Flange | 1/2″ – 24″ | 150, 300, 600, 900, 1500, 2500 | Sch 10, 40, 80, 160 | Custom dimensions per ASME B16.5 |
Weld Neck Flange | 1/2″ – 24″ | 150, 300, 600, 900, 1500, 2500 | Sch 10, 40, 80, 160 | Custom dimensions per ASME B16.5 |
Blind Flange | 1/2″ – 24″ | 150, 300, 600, 900, 1500, 2500 | Sch 10, 40, 80, 160 | Custom dimensions per ASME B16.5 |
Socket Weld Flange | 1/2″ – 24″ | 150, 300, 600, 900, 1500, 2500 | Sch 10, 40, 80, 160 | Custom dimensions per ASME B16.5 |
Threaded Flange | 1/2″ – 4″ | 150, 300, 600, 900, 1500, 2500 | Sch 10, 40, 80, 160 | Custom dimensions per ASME B16.5 |
Lap Joint Flange | 1/2″ – 24″ | 150, 300, 600, 900, 1500, 2500 | Sch 10, 40, 80, 160 | Custom dimensions per ASME B16.5 |
Ring Type Joint Flange | 1/2″ – 24″ | 150, 300, 600, 900, 1500, 2500 | Sch 10, 40, 80, 160 | Custom dimensions per ASME B16.5 |
Mechanical Properties Chart
Property | Value |
Tensile Strength | Minimum 827 MPa (120 ksi) |
Yield Strength (0.2% Offset) | Minimum 414 MPa (60 ksi) |
Elongation | Minimum 30% in 2 inches |
Hardness (Rockwell) | Max 120 HRB |
Impact Strength | Excellent (no measurable embrittlement at cryogenic temperatures) |
Specifications Chart
Specification | Details |
Standard | ASTM B564 |
Material Grade | Inconel 625 (UNS N06625) |
Pressure Class | 150, 300, 600, 900, 1500, 2500 |
Flange Types | Slip-On, Weld Neck, Blind, Socket Weld, Threaded, Lap Joint, RTJ |
Dimensional Standards | ASME B16.5, ASME B16.47 |
Size Range | 1/2″ to 24″ |
Face Type | RF (Raised Face), FF (Flat Face), RTJ (Ring Type Joint) |
Manufacturing Process | Forged, Heat Treated, Machined |
Chemical Composition Chart
Element | Composition (%) |
Nickel (Ni) | 58.0 min |
Chromium (Cr) | 20.0 – 23.0 |
Molybdenum (Mo) | 8.0 – 10.0 |
Iron (Fe) | 5.0 max |
Niobium (Nb) + Tantalum (Ta) | 3.15 – 4.15 |
Carbon (C) | 0.10 max |
Manganese (Mn) | 0.50 max |
Silicon (Si) | 0.50 max |
Sulfur (S) | 0.015 max |
Phosphorus (P) | 0.015 max |
Aluminum (Al) | 0.40 max |
Titanium (Ti) | 0.40 max |
Physical Properties Chart
Property | Value |
Density | 8.44 g/cm³ |
Melting Point | 1290 – 1350 °C (2350 – 2460 °F) |
Thermal Conductivity | 9.8 W/m·K (at 20°C) |
Electrical Resistivity | 1.30 µΩ·m (at 20°C) |
Specific Heat Capacity | 435 J/kg·K (at 20°C) |
Coefficient of Thermal Expansion | 13.0 µm/m·K (20 – 1000°C) |
Applications Chart
Industry | Application |
Chemical Processing | Used in reactors, heat exchangers, and storage tanks exposed to corrosive chemicals. |
Oil and Gas | Ideal for use in pipelines, refineries, and offshore platforms where high strength and corrosion resistance are required. |
Aerospace | Used in jet engines, exhaust systems, and gas turbines that operate under high temperatures and pressures. |
Marine Engineering | Suitable for seawater applications, including submarine systems and shipbuilding. |
Power Generation | Used in nuclear reactors, steam generators, and gas turbine components due to its ability to withstand extreme temperatures. |
Desalination Plants | Applied in evaporators and heat exchangers where resistance to chloride-induced stress corrosion cracking is essential. |
Pollution Control | Utilized in flue gas desulfurization systems where high-temperature corrosion resistance is required. |
Why Choose Amardeep Steel Centre LLP as your exporters of ASTM B564 625 Inconel Flanges?
- Unmatched Quality: Our flanges are manufactured using top-grade raw materials and cutting-edge technology, ensuring the highest quality standards.
- Competitive Pricing: We offer the most competitive prices in the market without compromising on quality.
- Customized Solutions: Our team works closely with clients to deliver customized flange solutions tailored to their specific requirements.
- Prompt Delivery: With a robust supply chain and global distribution network, we ensure timely delivery, regardless of location.
- Technical Expertise: Our experienced engineers and technical experts provide full support, from material selection to product deployment.
ASTM B564 625 Inconel Flanges are an excellent choice for industries that require superior performance under challenging conditions. At Amardeep Steel Centre LLP, we are dedicated to providing high-quality Inconel 625 flanges that offer unparalleled strength, durability, and resistance to corrosion.
Whether you require standard or custom flanges, we have the expertise and capabilities to meet your specific needs. For more information on 625 Inconel Flanges or to request a quote, please contact us today.
Global Reach
Amardeep Steel Centre boasts a robust global presence, committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality ASTM B564 Inconel 625 Flanges. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global steel market.

Countries We Export To
UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.