Question 1

What are the characteristics of the chemical composition of Nimonic 80A, and how does it obtain high-temperature strength?

Accepted Answer

Nimonic 80A uses nickel as the balance, chromium 18-21% for oxidation resistance, aluminum 1-1.8%, titanium 1.8-2.7% for aging precipitation strengthening, iron ≤ 3%, cobalt ≤ 2%, boron ≤ 0.008%, zirconium ≤ 0.15% to control grain boundaries, and carbon ≤ 0.1%. A typical nickel-chromium precipitation strengthened high-temperature alloy, the page is classified as a nickel-chromium alloy, with a balance of strength and oxidation resistance.

Question 2

What are the mechanical property data of Nimonic 80A?

Accepted Answer

Nimonic 80A uses nickel as the balance, chromium 18-21% for oxidation resistance, aluminum 1-1.8%, titanium 1.8-2.7% for aging precipitation strengthening, iron ≤ 3%, cobalt ≤ 2%, boron ≤ 0.008%, zirconium ≤ 0.15% to control grain boundaries, and carbon ≤ 0.1%. A typical nickel-chromium precipitation strengthened high-temperature alloy, the page is classified as a nickel-chromium alloy, with a balance of strength and oxidation resistance.

Question 3

In what situations is Nimonic 80A generally used and how to purchase it?

Accepted Answer

Nimonic 80A uses nickel as the balance, chromium 18-21% for oxidation resistance, aluminum 1-1.8%, titanium 1.8-2.7% for aging precipitation strengthening, iron ≤ 3%, cobalt ≤ 2%, boron ≤ 0.008%, zirconium ≤ 0.15% to control grain boundaries, and carbon ≤ 0.1%. A typical nickel-chromium precipitation strengthened high-temperature alloy, the page is classified as a nickel-chromium alloy, with a balance of strength and oxidation resistance.

Question 4

Nimonic 80A and 90 look similar, how to distinguish them based on parameters?

Accepted Answer

You can tell by looking at the data on the page: 80A has a density of 8.19 and a melting point of 1320-1365°C; 90 has a density of 8.20 and a melting point of about 1400°C and contains 15-21% cobalt. 80A cobalt is only ≤2%. 90 belongs to the nickel-chromium-cobalt series, has a higher temperature resistance and is more expensive; 80A is a more economical nickel-chromium choice. If the temperature is sufficient, there is no need to go to 90.

Question 5

Is Nimonic 80A suitable for making spring and fastener parts? What is the basis?

Accepted Answer

930/620/20% shows that it has high strength and plasticity. Chromium 18-21% has good oxidation resistance and is commonly used to make high-temperature fasteners and spring parts. The density of 8.19 is lighter than the 8.44 of GH3625, which has an advantage in specific strength. Both 80A and GH4180 are accepted. Wires, ribbons and rods are in stock. Commonly used specifications can be delivered in 1-2 weeks.

Elements	Min.	Max.
Nickel (Ni)	Rest	Rest
Chromium (Cr)	18	21
Iron (Fe)		3
Manganese (Mn)		1
Silicon (Si)		1
Phosphorus (P)		0.02
Sulfur (S)		0.015
Aluminum (Al)	1	1.8
Titanium (Ti)	1.8	2.7
Carbon (C)		0.1
Cobalt (Co)		2
Boron (B)		0.008
Zirconium (Zr)		0.15

Item	Details
Lead Time	Samples 5-10 days; production 15-30 days
MOQ	Small trial orders accepted
Samples	Available on request
Packaging	Export-standard coil spools / wooden cases
Certificate	COC with chemical composition analysis
Payment	T/T, L/C

High-temperature alloy

Nimonic 80A

High-Temp Alloy (Nickel-Chromium Alloy)

Nimonic 80A

Need this alloy for a demanding application?

Frequently Asked Questions (FAQ)

Alloy Grade	80A
Density (g/cm³)	8.19
Melting Point (°C)	1320-1365
Tensile Strength (Rm N/mm²)	930
Yield Strength (Rp 0.2N/mm²)	620
Elongation at Break A5 (%)	20

High-temperature alloy

Nimonic 80A

High-Temp Alloy (Nickel-Chromium Alloy)

Nimonic 80A

Need this alloy for a demanding application?

Frequently Asked Questions (FAQ)

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