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UNS N07718/DIN W. NR. 2.4668 High-Temp Resilient Seamless Pipe for Demanding Operations

Alloy 718 is an age-hardenable Alloy-chromium alloy that combines corrosion resistance with high strength and good fabricability.
It has high creep-rupture strength at temperatures up to 700℃. Its excellent relaxation resistance contributes to its application in springs.
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  • 1--273mm

  • Huashang

  • 7507120000


Overview


UNS N07718/DIN W. NR. 2.4668 Seamless Pipe is a high-performance alloy pipe designed to thrive in extreme operational conditions. Comprising a nickel-chromium-iron-molybdenum-niobium alloy, this seamless pipe combines excellent strength, corrosion resistance, and high-temperature capabilities. Its seamless construction provides enhanced structural integrity, making it suitable for applications where reliability and durability are non-negotiable.


Features


UNS N07718 seamless pipe is renowned for its outstanding high-temperature strength and creep resistance. It can maintain superior mechanical properties across a wide temperature range, from cryogenic conditions to 704°C (1300°F), making it ideal for long-term exposure to high heat. The alloy's precipitation hardening mechanism contributes to its exceptional strength, allowing it to withstand high pressures without deformation. It also offers good corrosion resistance in various media, including chloride solutions and reducing acids, enhancing its versatility. The pipe exhibits excellent fatigue and fracture toughness, ensuring a long service life even under cyclic loading, and its good formability and weldability simplify the fabrication process.


Application


In the aerospace industry, this seamless pipe is indispensable for jet engine components, such as turbine discs, blades, and shafts, where high-temperature strength and durability are essential for safe and efficient operation. In power generation, it is used in gas turbines, steam turbines, and nuclear reactors, where components are subjected to high temperatures and pressures. The oil and gas industry relies on it for downhole tools, drill collars, and other equipment used in deep-sea exploration and extraction, where it can endure harsh conditions. Additionally, it is widely applied in the chemical and petrochemical sectors for reactors, heat exchangers, and pipelines handling corrosive fluids.


Why Choose Us


When you choose our company for UNS N07718/DIN W. NR. 2.4668 Seamless Pipe, you're choosing excellence. Our manufacturing processes are optimized using advanced forging and heat treatment techniques to achieve the desired microstructure and mechanical properties. We have an in-house testing laboratory equipped with state-of-the-art instruments for comprehensive material testing, ensuring that every pipe meets or exceeds industry standards. Our flexible production schedule allows for fast turnaround times, even for customized orders. Our professional sales and technical teams are always on standby to offer prompt assistance, helping you select the right product and providing solutions to any technical challenges you may encounter.


Seamless Pipe
Seamless Pipe
Seamless Pipe

Chemical Composition

%

Ni

Cr

Fe

Mo

Nb+Ta

Co

C

Mn

Si

S

Cu

Al

Ti

P

B

MIN

50.00

17.00

BALANCE

2.80

4.75







0.20

0.65



MAX

55.00

21.00

3.30

5.50

1.00

0.08

0.35

0.35

0.02

0.30

0.80

1.15

0.02

0.01


Specification

Physical Properties

Seamless pipe and tube

ASTM B 983

DENSITY

8.23g/cm3

MELTING RANGE

1260-1335

Form

Standard

Metal Type

UNS N07718

Bar

ASTM B637 AMS 5662 AMS 5663 AMS 5664 PWA 1009 PWA 1010 GE B50TF15

Wire

AMS 5832

Sheet

ASTM B670 AMS 5596 AMS 5597 PWA 1033 GE B50TF14 ASTM B670 ASTM B637

Plate

ASTM B670 AMS 5596 AMS 5597 PWA 1033 GE B50TF15 ASTM B670 ASTM B637

Tube
AMS 5589 AMS 5590
Pipe
AMS 5589 AMS 5590

Fitting


Forging

ASTM B637 AMS 5562 AMS 5663 AMS 5664 PWA 1009 PWA 1010 GE B50TF15

Weld Wire

A5.14 ERNiFeCr-2

Weld Electrode

Din

2.4668


Specifications Of UNS N07718/DIN W. NR. 2.4668 Seamless Pipe

OD: 1mm-325mm

WALL THICKNESS:  0.2mm-20mm

Max Length:12m (Special specifications are available as required)


Production Processes

Seamless Pipe

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