Nickel Investment Castings

Strong Safety-Critical Castings

Nickel is a hard, malleable material that will alloy with most other metals. Nickel base alloys produced at Barron Industries resist high pressures, temperatures, and corrosion. They are well-suited for high-performance applications such as jet-engine blades, deep-sea mining, energy, power, chemical and petrochemical industries. The industry standard linear tolerances for any investment casting process are ±.005 per inch of length and the standard minimum wall thickness is between .04 “ and .08”. Barron’s metallurgical experts are prepared to meet your investment casting needs, even if tighter tolerances and thinner walls are needed. Contact us to discuss our design for manufacturing capabilities.

High Nickel Alloys & Superalloys

This group of alloys are used for their outstanding corrosion and high temperature resistance. Many are metallurgically related to the austenitic stainless steels but are much more highly alloyed, particularly with nickel, chromium and molybdenum in order to enhance their corrosion resistance. These alloys are used to resist extremely corrosive conditions in the energy, power, chemical and petrochemical industries.

The term “superalloy” is applied to alloys which have outstanding high temperature, strength and oxidation resistance. The nickel-based superalloys contain carefully balanced alloying additions of chromium, cobalt, aluminum , titanium and other elements. Often components are produced by carefully controlled solidification in order to get an optimum directionally solidified or even single crystal structure. These components can have strengths at 1000°C which exceed that of ordinary steels at room temperature. They are necessary in the production of gas turbines for both power generation and aircraft.

Renowned for their superior chemical corrosion resistance, heat resistance, stress corrosion resistance, and weldability, nickel-based alloys are heavily relied upon in the defense, aerospace, chemical, energy, and automotive industries.

At Barron Industries, we use two major types of nickel alloys during the investment casting process: Inconel® and Hastelloy®.

Nickel Base Alloys: Typical Properties

Nickel base alloys have a high resistance to chemical corrosion and maintain good mechanical properties at elevated temperatures. Some uses include nozzle diaphragms in jet engines, chemical processing and handling equipment, the pulp and paper industries, and specialty pumps and valves.

Nickel	Condition	Tensile Strength (PSI)	Yield Strength (PSI)	% Elongation	Hardness Range or Max	Reference Specification
Inconel 600	As Cast	65-75,000	35-40,000	10-20	80-90 Rb	AMS 5402
Inconel 625	Annealed	80-100,000	40-55,000	15-30	10-20 Rc	AMS 5402
Hastalloy C	As Cast Annealed	80.95,000 75-95,000	45-55,000 45-55,000	8-12 8-12	90-100 Rb 90 Rb- 25 Rc
Hastalloy X						AMS 5390
Invar	As Cast	50-60,000	25-30,000	30-40	50-60 Rb
Monel E

Nickel

Condition

Tensile Strength (PSI)

Yield Strength (PSI)

% Elongation

Hardness Range or Max

Reference Specification

Inconel 600

As Cast

65-75,000

35-40,000

10-20

80-90 Rb

AMS 5402

Inconel 625

Annealed

80-100,000

40-55,000

15-30

10-20 Rc

AMS 5402

Hastalloy C

As Cast Annealed

80.95,000
75-95,000

45-55,000
45-55,000

8-12
8-12

90-100 Rb
90 Rb- 25 Rc

Hastalloy X

AMS 5390

Invar

As Cast

50-60,000

25-30,000

30-40

50-60 Rb

Monel E

Inconel® Nickel-Based Alloys

During the investment casting process, we may use Inconel® 600 and 625.

Inconel® 600, 2.4816 (72% Ni, 14-17% Cr, 6-10% Fe, 1% Mn, 0.5%Cu): superior impact resistance, stability, and high fatigue strength across a broad temperature scale. Made with nickel, chrome, and iron, this alloy can withstand extreme environments and corrosive gasses; it also retains its stability and material properties when exposed to chlorine and chlorine water.

Hastelloy® Nickel-Based Alloys

Hastelloy is an alloy that is easy to weld and use in fabrication. It has excellent chemical corrosion resistance and strong stress corrosion resistance. During investment casting, we may use Hastelloy® Ca nickel-chrome-molybdenum alloy that is applied in environments with inorganic acids. This alloy can withstand high heat up to 1,900 degrees Fahrenheit or 1038 degrees Celsius while retaining its ductility.

Strong Safety-Critical Castings

High Nickel Alloys & Superalloys

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Nickel Base Alloys: Typical Properties

The most common Inconel® nickel-based alloys are:

Inconel® Nickel-Based Alloys

Hastelloy® Nickel-Based Alloys

Cobalt-based Alloys vs. Nickel-based Alloys

Demanding Applications

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