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3 Inch Schedule 40 80 Stainless Steel Pipe Per Foot

3 Inch Schedule 40 80 Stainless Steel Pipe Per Foot

This 3 Inch Schedule 40 80 Stainless Steel Pipe is made of Monel400 alloy. Monel400 is a corrosion resistant alloy. This alloy has excellent corrosion resistance in hydrofluoric acid, fluorine gas medium, and hot concentrated alkali solution.

This 3 Inch Schedule 40 80 Stainless Steel Pipe is made of Monel400 alloy. Monel400 is a corrosion resistant alloy. This alloy has excellent corrosion resistance in hydrofluoric acid, fluorine gas medium, and hot concentrated alkali solution. At the same time, it is also resistant to the corrosion of neutral solutions, water, seawater, atmosphere, organic compounds, etc. It does not generally produce stress corrosion cracks and has good cutting performance.


Metallographic structure of Monel 400:

The Monel400 alloy has a high strength single phase solid solution.


Corrosion resistance of Monel 400:

Monel400 alloy has excellent corrosion resistance in fluorine gas, hydrochloric acid, sulfuric acid, hydrofluoric acid and their derivatives. At the same time, it is more corrosion resistant in copper than copper-based alloys.

Acid Medium: Monel 400 is resistant to corrosion in sulfuric acid with concentrations of less than 85%. It is one among the few materials that can be resistant to hydrofluoric acid.

Water corrosion: Monel 400 alloy has excellent corrosion resistance in most cases of water corrosion, and pitting corrosion, stress corrosion, etc. are rarely found, and the corrosion rate is less than 0.025 mm/a.

High Temperature Corrosion: The maximum temperature for continuous operation of Monel 400 in air is generally around 600 °C. In high temperature steam, the corrosion speed is less than 0.026 mm/a.

Ammonia: Due to its high nickel content, Monel 400 alloy is resistant to corrosion under anhydrous ammonia and ammonia conditions below 585°C.


Applications include:

Monel400 alloy is a versatile material that can be used in many industrial fields:

1. Seamless water pipes and steam pipes in power plants

2. Sea water exchanger and evaporator

3. Sulfuric acid and hydrochloric acid environment

4. Crude oil distillation

5. Pump shaft and propeller in seawater use equipment

6. Equipment used by the nuclear industry to make uranium extraction and isotope separation

7. Production of pumps and valves for hydrochloric acid equipment


Chemical composition(WT%)

(C) :≤0.3

(Si) :≤0.50

(Mn) :≤2.00

(S) :≤0.024

(Ni) : ≥63

(Fe): ≤ 2.5

(Cu): 28 to 34

physical property

tensile strength:≥520MPa

Yield strength:≥170MPa

Elongation:≥45%


stainless steel pipe 3 inch.jpg

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