Cobalt Base Alloys

Designation Applications Metallurgical Characteristics Available Filler Metal Form SDS Tech Data
Eureka 1 AWS ER CoCr-C  Eureka 1 is a hardfacing alloy that has high abrasion and corrosion resistance at working temperatures up to 1500 F. It is commonly used on contact surfaces of exhaust valves, cams, saw bars, chains, crushers, petrochemical valves, and extrusion screws. Also used on hot trimming, shearing or punching dies associated with the forging and extrusion industries. The metal-to-metal wear is also outstanding due to the low coefficient of friction. Eureka 1 is a Cobalt base, hard facing filler metal that conforms to AWS ER CoCr-C. This alloy in bare rod form is generally applied by the oxyacetylene or gas tungsten arc welding process. The room temperature hardness of Eureka 1 is typically 50 – 55 HRC. This alloy is most noted for resistance to softening at elevated temperatures. Hot hardness values of 48 HRC are maintained at 1200 F. This alloy displays exceptional abrasion resistance due to the massive amount of carbide formation. The metal to metal wear is also outstanding due to the low coefficient of friction because of its ability to take a high polish. The large addition of Chromium imparts good oxidation and corrosion resistance up to 1800F. The impact resistance and machinability of this alloy is generally considered poor. Stick Electrode, TIG Rods, and Micro Tig Rods Download Here Download Here
Eureka 6 AWS ER CoCr-A Eureka 6 is a hardfacing alloy that has high abrasion and corrosion resistance at working temperatures up to 1500 F. It is commonly used on contact surfaces of exhaust valves, cams, saw bars, chains, crushers, petrochemical valves, and extrusion screws. Also used on hot trimming, shearing or punching dies associated with the forging and extrusion industries. The metal-to-metal wear is also outstanding due to the low coefficient of friction. Eureka 6 is a Cobalt base, hard facing filler metal that conforms to AWS ER CoCr-A. This alloy in bare rod form is generally applied by the oxyacetylene or gas tungsten arc welding processes. Eureka 6H is a special chemistry designed to reduce the possibility of porosity when TIG welding, as compared to regular 6. The room temperature hardness is typically 40 – 45 HRC. This alloy is most noted for resistance to softening at elevated temperatures. Hot hardness values of 37 HRC are maintained at 1200 F. This alloy displays exceptional abrasion resistance due to the massive amount of carbide formation. The metal to metal wear is also outstanding due to the low coefficient of friction because of its ability to take a high polish. The large addition of Chromium imparts good oxidation and corrosion resistance up to 1800 F. The impact resistance and machinability of this alloy is generally considered fair. Stick Electrode, TIG Rods, Metal Core Wire, and Micro Tig Rods Download Here Download Here
Eureka 12 AWS ER CoCr-B Eureka 12 is a hardfacing alloy that has high abrasion and corrosion resistance at working temperatures up to 1500 F. It is commonly used on contact surfaces of exhaust valves, cams, saw bars, chains, crushers, petrochemical valves, and extrusion screws.  Also used on hot trimming, shearing or punching dies associated with the forging and extrusion industries. The metal-to-metal wear is also outstanding due to the low coefficient of friction. Eureka 12 is a Cobalt base, hard facing filler metal that conforms to AWS ER CoCr-B. This alloy in bare rod form is generally applied by the oxyacetylene or gas tungsten arc welding processes. The room temperature hardness is typically 43 – 48 HRC. This alloy is most noted for resistance to softening at elevated temperatures. Hot hardness values of 37 HRC are maintained at 1200 F. This alloy displays exceptional abrasion resistance due to the massive amount of carbide formation. The metal to metal wear is also outstanding due to the low coefficient of friction because of its ability to take a high polish. The large addition of Chromium imparts good oxidation and corrosion resistance up to 1800 F. The impact resistance and machinability of this alloy is generally considered fair. Stick Electrode, TIG Rods, and Micro Tig Rods Download Here Download Here
Eureka “X” AWS ER CoCr-E Type #21 Eureka “X” is a hardfacing alloy which is used to weld forging dies, hot trimming, punching and shearing dies, extrusion dies, and dummy blocks. Eureka “X” is also used in high pressure and high temperature environments ups to 1500 F.  Eureka “X” has good abrasion resistance and thermal fatigue resistance, as well as good resistance to chemical attack such as acids or salts. Eureka “X” has a room temperature hardness typically 30 – 35 HRC. This alloy is most noted for resistance to softening at elevated temperatures. Hot hardness values of 22 HRC are maintained at 1200F. This alloy displays good abrasion resistance due to the moderate carbide formation and its work hardening abilities. The metal to metal wear is outstanding due to the low coefficient of friction because of its ability to take a high polish. The large addition of Chromium imparts good oxidation and corrosion resistance up to 1800 F. The impact resistance and machinability of this alloy is generally considered good. Stick Electrode, TIG Rods, Metal Core Wire, and Micro Tig Rods Download Here Download Here
Eureka MF-201 Modified Cobalt 21 Type Eureka MF-201 is a hardfacing alloy which is used in press forging dies, hot trimming dies, punching and shearing dies, extrusion dies, and dummy blocks. Eureka MF-201 offers a combined resistance to impact, heat, abrasion, corrosion, scaling and thermal shock. Eureka MF-201 weld deposits are the toughest of the cobalt base alloys and will retain its hardness well at elevated temperatures. Overlaying hot press forging dies with Eureka MF-20 can double or triple die life over conventional die block steels. Eureka MF-201is Cobalt based modified 21 type hard facing alloy. If offers combined resistance to impact, heat, abrasion, corrosion, scaling and thermal shock. It has far greater resistance to shock and heat checking than typical Cobalt base alloys normally have. Eureka MF-201 weld deposits have excellent corrosion resistance in oxidizing atmospheres and chlorine type solutions. It also has resistance to scaling up to 1800 F. It has good hot hardness well at extreme temperatures. The weld deposits of Eureka MF-201, which is the toughest of Cobalt base alloys, will average approximately 30 – 35 HRC as applied, and will work-harden up to 55 HRC. The deposits are also highly resistant to heat checking. Stick Electrode, TIG Rods, and Metal Core Wire Download Here Download Here
Eureka 706 Eureka 706 is commonly used on contact surfaces of exhaust valves, cams, saw bars, chains, crushers, petrochemical valves, and extrusion screws. Also used on hot trimming, shearing or punching dies associated with the forging and extrusion industries. The metal-to-metal wear is also outstanding due to the low coefficient of friction because of its ability to take a high polish.  Eureka 706 TIG Rod is a cobalt base, hard facing filler metal that is more wear resistant and less crack sensitive than standard #6. This alloy in bare rod form is generally applied by the oxyacetylene or gas tungsten arc welding processes. The room temperature hardness is typically 40 – 45 HRC. This alloy is most noted for resistance to softening at elevated temperatures. Hot hardness values of 35 HRC are maintained at 1200 F. This alloy displays exceptional abrasion resistance due to the massive amount of carbide formation. The metal to metal wear is also outstanding due to the low coefficient of friction because of its ability to take a high polish. The large addition of Chromium imparts good oxidation and corrosion resistance up to 1800 F. The impact resistance and machinability of this alloy is generally considered fair. TIG Rods Download Here Download Here
Eureka 25 Eureka 25 is used in press forging dies, hot trimming dies, punching and shearing dies, extrusion dies and dummy blocks. This alloy offers a combined resistance to impact, heat, abrasion, corrosion, scaling and thermal shock. The weld deposits are the toughest of the cobalt base alloys and will retain its hardness well at elevated temperatures. Overlaying hot press forging dies with Eureka 25 double or triple die life over conventional die block steels. Eureka 25 is a Cobalt based type hard facing alloy. If offers combined resistance to impact, heat, abrasion, corrosion, scaling and thermal shock. It has far greater resistance to thermal shock or heat checking than typical Cobalt base alloys normally have. Eureka 25 weld deposits have excellent corrosion resistance in oxidizing atmospheres and chlorine type solutions. It also has resistance to scaling up to 1800 F. It has good hot hardness well at extreme temperatures. The weld deposits of Eureka 25 are approximately 25 HRC as applied, and will work-harden up to 45 HRC.   Stick Electrode, TIG Rods, and Metal Cored Wire Download Here Download Here