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                WD-Co25

                INTRODUCTION

                WISDOM WD-Co21 is recommended for applications involving cavitation, erosion, corrosion and/or high temperatures, such as valve trim for petrochemical and power generation. Due to its good impact resistance, it has been widely used in the building up of forging or hot stamping dies.

                 

                Common Names: Stellite 21 Polystel 21

                Standard: AWS 5.21-2001 ERCoCr-E

                 

                CHEMICAL COMPOSITION(%)

                C

                Si

                Mn

                Mo

                Cr

                W

                Ni

                Fe

                Co

                0.25

                1.5

                ≤0.5

                5.5

                27.3

                ≤0.5

                2.0

                1.5

                Rest

                 

                CHARACTERISTIC

                Abrasion Resistance

                Moderate

                Impact Resistance

                Excellent

                Corrosion Resistance  

                Good

                Hardness

                HRC 20-40

                Deposit Layers

                Multiple

                Deposit Cross Checks

                No

                Magnetic  

                No

                Hot Wear Hardness  

                Good

                Machinability

                Carbide Tools

                 

                APPLICATIONS

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