High Strength Inconel 625 Pipe , Alloy 625 Tubing Excellent Pitting Resistance

Product Specification

Inconel 625 tube UNS N06625 / DIN W. Nr. 2.4856 AMS 5581, ASTM B829

Inconel 625 tube / UNS N06625 / DIN W. Nr. 2.4856
ASTM B444, ASTM B751, ASTM B829, ASTM B775, ASTM B705, ASTM B704, AMS 5581 fabricated to order (welded, with 100% x-ray inspection.

Alloy 625 tube shows excellent corrosion resistance in many media. Excellent resistance to pitting, crevice corrosion, intergranular corrosion and erosion in chloride media.

Inconel 625 nickel chromium alloy is widely used because of its high strength, excellent machinability (including welding) and excellent corrosion resistance. The performance of Inconel 625 makes it an excellent material for avoiding local corrosion (pitting corrosion and crevice corrosion), high corrosion fatigue strength, high tensile strength and resistance to chloride ion stress corrosion cracking in seawater. It is used for mooring cables, blades of thrusters of motor gun boats, auxiliary propulsion motors of submarines, quick disconnection joints of submarines, exhaust pipes of naval ships, protective jackets of submarine communication cables, submarine sensor controllers and expansion joints of steam pipelines, etc. Potential applications include springs, seals, expansion joints for underwater control, cable joints, fasteners, flexible devices, and oceanographic instrumentation components. Inconel 625 alloy has high tensile, creep and fracture strength, excellent fatigue and thermal fatigue strength, oxidation resistance, excellent welding and brazing properties, which make it also play an important role in aviation field. To the aircraft's duct system, engine exhaust system, thrust conversion system, anti welding honeycomb structure in engine installation structure, fuel and hydraulic system pipes, spray rods, expansion joints, vortex coated rings and heat exchanger pipes in environmental control system. It is also suitable for use in the conversion lining of combustion section, turbine seal and thrust chamber pipe of compressor, blade and rocket engine.

• Inconel 625 Bar
• Inconel 625 Wire
• Inconel 625 Sheet
• Inconel 625 Plate
• Inconel 625 Forgings
• Inconel 625 Pipe fittings
• Inconel 625 Flanges
• Inconel 625 Seamless & Welded pipe
• Inconel 625 Seamless Tube & Welded tube
• Inconel 625 Welding wire

Inconel 625 Rod Chemical composition:

This Inconel 625 alloy has the following characteristics:
1.Excellent corrosion resistance to various corrosive media in oxidizing and reducing environment
2.Excellent resistance to pitting and crevice corrosion, and will not cause stress corrosion cracking due to chloride
3. Excellent resistance to inorganic acid corrosion, such as nitric acid, phosphoric acid, sulfuric acid, hydrochloric acid and mixed acids of sulfuric acid and hydrochloric acid, etc.
4.Excellent resistance to various inorganic acid mixed solutions
5. When the temperature reaches 40 ℃, it can show good corrosion resistance in various concentrations of hydrochloric acid solution.
6.Good processability and weldability, no cracking sensitivity after welding
7. Manufacturing certification of pressure vessels with wall temperature of -196 ～ 450 ℃
8. Certified by the American Society of Corrosion Engineers NACE standard (MR-01-75) to meet the highest standard level VII for use in acid gas environments

Deformation Inconel 625 is a kind of alloy which can be processed by hot and cold deformation with working temperature range of - 253 ~ 1320 ℃, has good mechanical properties and comprehensive strength and toughness indexes, and has high oxidation resistance and corrosion resistance. According to its heat treatment process, it can be divided into solution strengthening alloy and aging strengthening alloy.

1. Solid solution strengthening alloy

The temperature range is 900-1300 ℃, and the highest oxidation resistance temperature is 1320 ℃. For example, for gh128 alloy, the tensile strength at room temperature is 850mpa, the yield strength is 350Mpa; the tensile strength at 1000 ℃ is 140MPa, the elongation is 85%, the endurance life of stress at 1000 ℃ and 30MPa is 200 hours, and the elongation is 40%. Solid solution alloy is generally used to make combustion chamber, gearbox and other parts of aerospace engine.

2. Age hardening alloy

The operating temperature is - 253 ~ 950 ℃, which is generally used to make structural parts such as turbine disks and blades of aerospace engines. The working temperature of the alloy is - 253 ~ 700 ℃, which requires good high and low temperature strength and fatigue resistance. For example, GH4169 alloy has a maximum yield strength of 1000MPa at 650 ℃; the alloy temperature for blade manufacturing can reach 950 ℃; for example, GH220 alloy has a tensile strength of 490mpa at 950 ℃, and a durable life of 940 ℃ and 200MPa is more than 40 hours.