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UNS N08800/DIN W. NR. 1.4876 SEAMLESS PIPE

N08800 has good rupture and creep strength and excellent resistance to oxidation, carburization and sulfidation at temperatures up to 816℃.

It also resists general corrosion by many aqueous media. For applications requiring higher stress rupture and creep properties, especially at temperatures above 816℃, N08810 and N08811are recommended. N08800 is readily formed, welded and machined.
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Overview

The UNS N08825 DIN W.NR. 2.4858 Seamless Pipe is a nickel - iron - chromium alloy pipe that offers excellent resistance to a wide range of corrosive media, especially in wet and harsh environments. The alloy composition includes significant amounts of nickel, chromium, molybdenum, and copper, which work together to provide superior corrosion resistance and mechanical properties.


This seamless pipe is produced using state - of - the - art manufacturing processes to ensure high precision and quality. The seamless construction ensures a smooth internal surface, which minimizes fluid friction and allows for efficient flow of liquids and gases. It complies with international standards, making it a reliable choice for global industrial applications.


Features


One of the most notable features of the UNS N08825 DIN W.NR. 2.4858 Seamless Pipe is its outstanding resistance to chloride - induced stress corrosion cracking. It performs exceptionally well in saline environments, such as seawater and brine solutions, where many other materials fail due to stress corrosion. The pipe also has excellent resistance to general corrosion in a variety of acids, including sulfuric acid, hydrochloric acid, and phosphoric acid, especially at moderate temperatures.


In addition to its corrosion resistance, the pipe has good mechanical properties at both ambient and elevated temperatures. It can withstand moderate high temperatures and has sufficient strength for pressure - bearing applications. The alloy is also known for its good weldability and formability, which makes it easy to fabricate into complex shapes and integrate into existing piping systems.


Exceptional Corrosion Resistance

Acid Resistance: Withstands sulfuric acid (≤70% concentration, ≤80°C), hydrochloric acid (≤20% concentration, ≤50°C), and mixed acids (e.g., H₂SO₄ + HF).

Chloride Environments: Resists pitting and crevice corrosion in saltwater, brines, and industrial fluids (e.g., oilfield injection water).

Stress Corrosion Cracking (SCC): Outperforms common stainless steels (e.g., 316L) in resisting SCC under combined chloride and stress conditions.


Robust Mechanical Properties

High strength: Tensile strength ≥550 MPa, yield strength ≥240 MPa, suitable for high-pressure applications.

Temperature resistance: Maintains oxidation and creep resistance at 500–700°C, ideal for heat exchangers and high-temperature systems.


Fabrication and Weldability

Formable via cold/hot working (e.g., bending, flaring).

Weldable with matching nickel-based filler metals (e.g., ERNiCrMo-3), requiring precautions to avoid thermal cracking and intergranular corrosion.


Application


The UNS N08825 DIN W.NR. 2.4858 Seamless Pipe is widely used in industries that deal with corrosive fluids and harsh environments. In the marine industry, it is used for seawater intake systems, offshore pipelines, and shipboard equipment, where the constant exposure to seawater requires materials with high corrosion resistance.


In the chemical processing industry, it is suitable for transporting and processing various acids, as well as for equipment in pickling plants and fertilizer production. The pipe is also used in the oil and gas industry, particularly in offshore oil fields where the presence of saltwater and corrosive gases poses a challenge to material selection. Additionally, it can be found in the water treatment industry for pipelines and equipment handling brackish water and wastewater, where resistance to chloride and other contaminants is essential.


UNS N10001 PIPE
UNS N10001 PIPE


UNS N10001 PIPE



UNS N10001 PIPE
UNS N10001 PIPE


UNS N10001 PIPE

Our pipe factory has 296 employees ,including 4 senior engineers,18 engineers and 38 professional technicians.

We can produces 30,000tons of austenitic steel and duplex steel pipes annually with 18 seamless  production lines and 3 perforation production lines.

Our pipe factory has been certified to the ISO9001:2015 quality management system and certified by various classification societies (such as BV, ABS,CCS,DNV/GL,TUV,LR,KR etc).


UNS N10001 PIPE


UNS N10001 PIPE


UNS N10001 PIPE



Chemical Composition

%

C

Mn

Si

Cr

S

Ni

Cu

Fe

Al

S

Ti

MIN




19.00


30.00


39.50

0.15


0.15

MAX

0.10

1.50

1.00

23.00

0.02

35.00

0.75


0.60

0.03

0.60



Specification

Physical Properties

Seamless pipe and tube

ASTM B 407, B 829

DENSITY

7.94g/cm3

MELTING RANGE

1357-1385 ℃



Specifications Of UNS N08800/DIN W. NR. 1.4876 Seamless Pipe

OD: 1mm-325mm

WALL THICKNESS:  0.2mm-20mm

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

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