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G-CoCr25NiW | 2.4682 Material Datasheet

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Material Description

Material Number Material Name Material Number (single) Standard Scope Standard Status Country Predecessor VDA 231-106 classification
2.4682 (WL 2.4682 : 2012-10) G-CoCr25NiW 2.4682 WL 2.4682 : 2012-10 Supersedes WL 2.4682 : 1977-01 Valid Germany G-CoCr25NiW 4.2 1)
1) Remark: High-temperature cobalt investment casting alloy for aerospace applications. The material is scale resistant up to about 1150 °C, suitable for welding and is usually not heat treated. Corrosion resistance to nitric acid, hydrochloric acid and nitric hydrofluoric acid solutions of low concentration at not higher temperatures, furthermore to chlorine gas in the presence of humidity at room temperature. Application: - turbine guide vanes, guide rings and afterburner parts

Chemical Composition

C [%] Cr [%] Fe [%] Mn [%] Ni [%] Si [%] W [%] Remainder
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Material Compliance

REACh RoHS
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Mechanical Properties

Casting Method Condition Condition Number Nominal Size [mm] Temperature [°C] Tensile Strength [MPa] Yield Strength (0.2% offset) [MPa] Elongation A [%] Hardness HV
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Physical Properties

Temperature [°C] Density [g/cm³] Young's Modulus [GPa] Mean Coefficient of Thermal Expansion (reference 20°C) [10^-6*K^-1] Thermal Conductivity [W/(m*K)] Mean Specific Heat Capacity [kJ/(kg*K)] Electric Conductivity [MS/m] Magnetizeability
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Welding and Joining

Welding and Joining - Evaluation
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Creep Rupture Behaviour

Condition Condition Number Temperature [°C] Creep Tensile Strength at 10² h [MPa] Creep Tensile Strength at 10³ h [MPa] Creep Tensile Strength at 10^4 h [MPa] 0.2% Creep Limit at 10² h [MPa] 0.2% Creep Limit at 10³ h [MPa] 1% Creep Limit at 10² h [MPa] 1% Creep Limit at 10³ h [MPa]
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Cross Reference

Material Name Country Standard
CO-C91-HT Europe AECMA 1)
HC301 Great Britain BS HC 301 1)
Stellite 31 USA AMS 5382 1)
R30031 USA UNS 2)
1) Source: WL 2.4682-100 : 2012-10
2) Source: Metals & Alloys in the Unified Numbering System, SAE/ASTM, 11th Edition, 2008

Producer/Supplier/Trade names

Tradename Supplier
X45 BFG Feinguss Niederrhein GmbH, Moers 1)
G4682 Dörrenberg Edelstahl GmbH, Engelskirchen 1)
Alloy 31 pauly STAHLHANDEL, Essen 1)
1) Source: Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
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