ASTM B366 UNS N06625 Inconel 625 Tube Fittings 45 Degree 90 Degree Nickel Alloy Steel Butt Welding

1. Introduction to Nickel-Based Alloys

Nickel-based alloys are a prominent group in the corrosion-resistant category, primarily consisting of the iron-chromium series known as Incoloy alloys. These alloys exhibit excellent corrosion resistance in both reducing and oxidizing acids, and they offer robust protection against stress corrosion cracking, pitting, and crevice corrosion. Incoloy alloys are extensively used in the chemical, petrochemical, nuclear industry, and rare metal extraction sectors, with popular variants including Incoloy 800, Incoloy 825, and Incoloy 926.

Inconel alloys are another significant family within nickel-based materials, characterized by their solution of nickel, chromium, and iron, which enhances their strength. Known for outstanding high-temperature corrosion resistance and oxidation properties, Inconel alloys also demonstrate superb performance in cold and hot processing and welding. These qualities make them highly sought after in the aviation, chemical, and paper industries, among others. Well-known grades include Inconel 600, Inconel 601, Inconel 625, Inconel 617, Inconel 718, and Inconel X750.

Lastly, Hastelloy alloys represent a crucial part of nickel-based corrosion-resistant and high-temperature materials. They are generally categorized into nickel-chromium alloys and nickel-chromium-molybdenum alloys. Hastelloy alloys are praised for their excellent corrosion resistance and thermal stability, making them suitable for use in aviation, petrochemical, and chemical industries. Frequently used types include Hastelloy C276, Hastelloy C22, Hastelloy B2, Hastelloy B3, Hastelloy C4, Haynes 230, and Haynes 188.

2. Inconel 625 Pipe Fittings Overview

Material Composition and Properties:
Inconel 625 is a nickel-chromium (Ni-Cr) solution-strengthened, deformable high-temperature alloy, chiefly reinforced by molybdenum and niobium. This composition imbues Inconel 625 with a variety of remarkable properties, making it ideal for demanding applications across a wide temperature range, from cryogenic levels up to 980°C (1800°F).

Key Characteristics:

Tensile and Fatigue Strength: Exhibits robust tensile and fatigue strength over its entire operational temperature range.
Processing and Welding Performance: Offers excellent workability and is well-suited for various forming and welding techniques due to its deformable nature and high ductility.
Corrosion and Oxidation Resistance: Inconel 625 provides outstanding resistance to both corrosion and oxidation, making it a preferred material in harsh environments.
Stress Corrosion Resistance: Particularly effective in salt spray atmospheres, it resists the types of stress corrosion that can plague other materials under similar conditions.
Applications:
Due to these properties, Inconel 625 pipe fittings are extensively used in high-stress environments where corrosion resistance and high strength are critical. Common applications include chemical processing, aerospace systems, marine engineering, and nuclear power plants, where both the integrity and longevity of the material are crucial.

Chemical composition

• Specification of pipe fittings

Material Mark : ASTM B366 UNS N0662545

Standard : ANSI/ASME B16.9, B16.28, MSS-SP-43.

Size : 1/2''~48''(Seamless);16''~110''(Welded)

Wall Thickness: SCH5-STD-SCH XXS

3. Application area

Our company can produce carbon steel, stainless steel, and alloy steel pipe fittings according to standards such as ASME/ANSI, JIS, DIN, ISO etc. The varieties include equal diameter tees, reducing tees, tees, elbows, cross, concentric reducer, eccentric reducer etc. We provide the very best quality pipe and fittings, prompt delivery and reliable services at competitive prices.