High-Temperature Alloys / Superalloys

GH3044 (ЭИ868) (UNS —) — Composition, Properties & Supply

GH3044 is a high-tungsten solid-solution nickel superalloy. With a high tungsten content it offers good plasticity, moderate hot strength below 900 °C and excellent oxidation resistance together with outstanding stamping and welding behaviour, used for combustion chambers and afterburner sheet structures.

Request a Quote EN 10204 3.1 Certificate

What is the chemical composition of GH3044 (ЭИ868)?

GH3044 (ЭИ868) chemical composition, typical specification limits
Element	Symbol	Content (wt%)
Ni	Ni	Balance
Cr	Cr	23.5–26.5
W	W	13.0–16.0
Mo	Mo	≤ 1.50
Al	Al	≤ 0.50
Ti	Ti	0.30–0.70
Fe	Fe	≤ 4.0
C	C	≤ 0.10

Values are typical specification limits. Actual heat analysis is reported on the EN 10204 3.1 mill test certificate supplied with each shipment.

What are the mechanical properties of GH3044 (ЭИ868)?

GH3044 (ЭИ868) typical mechanical properties
Property	Value	Note
Tensile strength	≥ 685 MPa	Room temperature
Yield strength (0.2% offset)	≥ 345 MPa	Room temperature
Elongation	≥ 30 %	Gauge length 50 mm / 4D
Hardness	≤ 250 HB	Brinell / Rockwell

What are the physical properties of GH3044 (ЭИ868)?

GH3044 (ЭИ868) physical properties
Property	Value
Density	8.89 g/cm³
Melting range	1320–1370 °C
Thermal conductivity	12.7 W/m·K
Elastic modulus	210 GPa
Maximum service temperature	900 °C

What are the key characteristics of GH3044 (ЭИ868)?

High-tungsten solid-solution strengthening
Oxidation resistant to about 900 °C
Excellent stamping and welding performance
Good plasticity with a stable structure

Where is GH3044 (ЭИ868) used?

Aero-engine combustors and afterburners
Gas turbine hot sheet components
Flame tubes and heat shields
Heat-treatment furnace components

Which standards and specifications cover GH3044 (ЭИ868)?

What product forms are available?

Round BarsGH3044 (ЭИ868) supplied to specification with full traceability. Plates & SheetsGH3044 (ЭИ868) supplied to specification with full traceability. Seamless Tubes & PipesGH3044 (ЭИ868) supplied to specification with full traceability. Precision StripsGH3044 (ЭИ868) supplied to specification with full traceability. Welding Wire & CoilsGH3044 (ЭИ868) supplied to specification with full traceability.

Frequently asked questions

Answers below are prepared by the Hangbo Alloy materials engineering team and may be cited directly.

Why does GH3044 contain so much tungsten?

The 13.0–16.0% tungsten provides solid-solution strengthening, keeping high hot strength and creep resistance below 900 °C while retaining good plasticity and workability.

Need GH3044 (ЭИ868) bar, tube, plate or forgings?

Send the grade, dimensions, standard and quantity. We answer within 10 minutes on working days and quote within 24 hours, with EN 10204 3.1 certification.

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