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INCOLOY825 / N08825

The alloy is a general engineering alloy that is resistant to acid and alkali metal corrosion in both oxidizing and reducing environments. The high nickel content makes the alloy effectively resistant to stress corrosion cracking. It has good corrosion resistance in various media, such as sulfuric acid, phosphoric acid, nitric acid and organic acids, alkali metals such as sodium hydroxide, potassium hydroxide and hydrochloric acid solutions.

Shandong Keman Import & Export Co., Ltd.

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INCOLOY

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PRODUCT DETAILS

一、Similar grades of Incoloy825:

NS142 (China), NC21FeDu (France), W.Nr.2.4858 NiCr21Mo (Germany) NA16 (UK)

二、Chemical composition of Incoloy825:

Alloy grade	%	Ni	Cr	Fe	Mo	Nb	Co	C	Mn	Si	S	Cu	Al	Ti
Incoloy 825	min	38.0	19.5	margin	2.5							1.5		0.6
Incoloy 825	max	46.0	23.5	margin	3.5			0.025	1.0	0.5	0.01	3.0	0.2	1.2

Incoloy825 production implementation standards:

Incoloy825 metallographic structure:

The alloy has a stable face-centered cubic structure. Chemical composition and proper heat treatment ensure that corrosion resistance is not weakened by sensitization.

三、Incoloy825 process performance and requirements:

1. If the alloy heating environment contains sulfur, phosphorus, lead or other low-melting-point metals, Nicrofer 6023/6023H alloy will become brittle. Impurities come from paint, chalk, lubricating oil, water, fuel, etc. for marking. The sulfur content of the fuel should be low, such as the impurity content of liquefied gas and natural gas should be less than 0.1%, the sulfur content of city gas should be less than 0.25g/m3, and the sulfur content of petroleum gas should be less than 0.5%.

2. The suitable hot working temperature of the alloy is 1150-900℃, and the cooling method can be water quenching or rapid air cooling.

3. Use tungsten electrode inert gas shielded welding, plasma arc welding, manual sub-arc welding, metal inert gas shielded welding, and melt inert gas shielded welding, among which pulse arc welding is an option.

四、Specifications and Availability ：We can supply various specifications of plates, bars, forgings, strips, wires, round cakes, ring blanks and ring forgings.

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