ASTM B637 Inconel 718 Flanges are high-strength, corrosion-resistant nickel alloy flanges manufactured from Inconel 718 (UNS N07718). These flanges offer excellent performance in extreme temperatures, high-pressure environments, and corrosive conditions, making them ideal for aerospace, oil & gas, power generation, and marine applications. Known for superior tensile strength, oxidation resistance, and creep resistance, Inconel 718 Flanges are widely used where reliability and durability are critical
Introduction to ASTM B637 Inconel 718 Flanges
ASTM B637 Inconel 718 Flanges are forged nickel alloy flanges made from precipitation-hardened Inconel 718, a material recognized for its outstanding mechanical strength and resistance to extreme environmental conditions. These flanges are produced under strict ASTM standards to ensure consistent quality, performance, and dimensional accuracy.
We supply a wide range of Inconel 718 Flanges (UNS N07718) Nickel Alloy Flanges, designed to meet demanding industrial requirements. Whether used in high-temperature turbines or aggressive chemical processing units, these flanges deliver unmatched reliability.
What is Inconel 718 (UNS N07718)?
Inconel 718 is a nickel-chromium alloy strengthened by precipitation hardening. It contains elements such as niobium, molybdenum, and titanium, which contribute to its exceptional strength and corrosion resistance.
Key Features of Inconel 718 / Alloy 718 (2.4668):- High tensile and yield strength
- Excellent resistance to oxidation and corrosion
- Superior creep and rupture resistance at high temperatures
- Good weldability without post-weld cracking
- Maintains mechanical properties up to 700°C
These properties make Inconel 718/Alloy 718 (2.4668) ideal for manufacturing high-performance flanges.
Table of Contents
- ➤ What is Inconel 718 (UNS N07718)?
- ➤ Key Benefits of ASTM B637 Inconel 718 Flanges
- ➤ Types of ASTM B637 Inconel 718 Flanges
- ➤ ASTM B637 Inconel 718 Flanges Specifications
- ➤ Chemical Composition of Inconel 718
- ➤ Mechanical Properties of Inconel 718 Flanges
- ➤ Applications of Inconel 718 Flanges
- ➤ Why Choose Our Inconel 718 Flanges?
- ➤ Quality Testing & Inspection
Key Benefits of ASTM B637 Inconel 718 Flanges
- Exceptional Strength: Thanks to precipitation hardening, Inconel 718 Flanges exhibit superior strength compared to other nickel alloys.
- High-Temperature Resistance: These flanges maintain structural integrity even in extreme temperatures, making them suitable for turbine and aerospace components.
- Corrosion and Oxidation Resistance: Resistant to harsh chemicals, seawater, and oxidizing environments.
- Long Service Life: Durability reduces maintenance costs and downtime.
- Excellent Weldability: Unlike many high-strength alloys, Inconel 718 can be welded without cracking.
Types of ASTM B637 Inconel 718 Flanges
We offer a comprehensive range of Inconel Flanges in various types to suit different applications:
➤ Inconel 718 Weld Neck Flanges
Designed for high-pressure applications, these flanges provide excellent stress distribution and long service life.
➤ Inconel 718 Slip-On Flanges
Easy to install and cost-effective, suitable for low-pressure systems.
➤ Inconel 718 Blind Flanges
Used to seal pipeline ends, ensuring leak-proof performance.
➤ Inconel 718 Socket Weld Flanges
Ideal for small-diameter, high-pressure piping systems.
➤ Inconel 718 Threaded Flanges
Used in systems where welding is not feasible.
➤ Inconel 718 Blank Flanges
Inconel 718 Blank Flanges are solid flanges used to block off sections of piping systems, providing safety and easy maintenance.
ASTM B637 Inconel 718 Flanges Specifications
| Specification | Details |
|---|---|
| Material Grade | Inconel 718 (UNS N07718) |
| Standard | ASTM B637 |
| Equivalent Grade | Alloy 718 / 2.4668 |
| Pressure Rating | Class 150 to 2500 |
| Size Range | ½” NB to 48” NB |
| Flange Types | Weld Neck, Slip-On, Blind, Threaded, Socket Weld |
| Face Type | RF, FF, RTJ |
| Manufacturing Process | Forged |
Chemical Composition of Inconel 718
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | 50 – 55 |
| Chromium (Cr) | 17 – 21 |
| Iron (Fe) | Balance |
| Niobium (Nb) | 4.75 – 5.50 |
| Molybdenum (Mo) | 2.80 – 3.30 |
| Titanium (Ti) | 0.65 – 1.15 |
| Aluminum (Al) | 0.20 – 0.80 |
Mechanical Properties of Inconel 718 Flanges
| Property | Value |
|---|---|
| Tensile Strength | 965 MPa |
| Yield Strength | 550 MPa |
| Elongation | 30% |
| Hardness | ≤ 363 HB |
Applications of Inconel 718 Flanges
Due to their advanced properties, ASTM B637 Inconel 718 Flanges are widely used in:
- Aerospace and aircraft engines
- Oil & gas exploration and drilling
- Power generation plants
- Chemical processing industries
- Marine and offshore platforms
- Nuclear reactors
Related Inconel Steel Flanges
Why Choose Our Inconel 718 Flanges?
We bring practical industry experience and technical expertise to every product we supply. Our Inconel 718 Flanges (UNS N07718) Nickel Alloy Flanges are:
- Manufactured using premium raw materials
- Tested for mechanical and chemical properties
- Supplied with mill test certificates
- Available in customized sizes and specificationss
- Compliant with international standards
Our understanding of real-world applications allows us to deliver flanges that perform reliably even in the most demanding environments.
Quality Testing & Inspection
To ensure top performance, our Inconel Flanges undergo strict quality checks:
- Ultrasonic Testing (UT)
- Radiographic Testing (RT)
- Hydrostatic Testing
- Positive Material Identification (PMI)
- Mechanical Testing
If you are looking for high-performance ASTM B637 Inconel 718 Flanges, we provide reliable solutions engineered for durability, precision, and extreme environments. With a focus on quality, compliance, and customer satisfaction, we ensure that every flange meets your exact requirements.
Frequently Asked Questions
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