Stainless Steel Coil

Incoloy 840

Incoloy 840 is a high-temperature alloy mainly made of nickel and chromium, with added iron, aluminum, and titanium. It is engineered for extreme heat and harsh service conditions. Incoloy 840 retains outstanding strength even when very hot and resists oxidation in air and steam, making it ideal for extreme environments.

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Features of Incoloy 840

High-Temperature Strength: Incoloy 840 maintains its strength and structural stability even at very high temperatures. This makes it reliable for heat-intensive equipment and processes.

Extreme Heat Resistance (~1000°C): The alloy can be used in environments reaching around 1000 °C, so it performs consistently in furnaces, heat exchangers, and other high-temp applications.

Oxidation & Corrosion Resistance: Incoloy 840 resists oxidation (reaction with air and steam) and stands up to corrosive environments. It forms a stable protective surface that lets it endure harsh, oxidizing conditions and chemicals.

Low Thermal Expansion: This alloy expands very little when heatedghtsteel.com. Low thermal expansion means Incoloy 840 parts suffer much less warping or cracking as temperatures change, reducing stress damage during thermal cycling.

Wear and Fatigue Durability: Incoloy 840 has excellent wear resistance and resists thermal . It withstands friction and repeated heating/cooling cycles with minimal degradation, giving it a long service life in demanding applications.

Incoloy 840 Datasheet

Standard	WERKSTOFF NR.	UNS
Incoloy 840	1.4847	S33400

Incoloy 840 Chemical Composition

Grade	ASTM	C%	Mn%	P%	S%	Si%	Cr%	Ni%	Mo%
840	A240	≤0.08	≤1.00	≤0.030	≤0.015	≤1.00	18.00~22.00	≤0.60	-

Incoloy 840 Mechanical Properties（Nominal Room Temperature）

Type No.	Yield Strength Rp0.2 (N/mm²)	Tensile Strength Rm (N/mm²)	Hardness	Elongation (%)
840	≥241	≥572	70	≥40%

Incoloy 840 Stainless Steel Application

APliable Tubing

Automotive Components

Medical Instruments

Domestic Goods

Construction Building Materials

Chemical Processing

Culinary Sector

Farming Sector

Maritime Construction

Heat Exchange

APliable Tubing

Automotive Components

Medical Instruments

Domestic Goods

Construction Building Materials

Chemical Processing

Culinary Sector

Farming Sector

Maritime Construction

Heat Exchange

APliable Tubing

Automotive Components

Medical Instruments

Domestic Goods

Construction Building Materials

Chemical Processing

Culinary Sector

Farming Sector

Maritime Construction

Heat Exchange

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How We Pack Stainless Steel Coil

For stainless steel coils, we wrap the coils in brown paper and bundle them onto wooden pallets. If extra protection is needed, we offer reinforced packaging with metal straps at the four corners, which may involve an extra cost. We also provide custom packaging options to suit individual customer needs, ensuring safe and tailored delivery.