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Address: 7/4A3 Linh Dong Street, Linh Dong Ward, Thu Duc City, Hochiminh City, Vietnam

KOJAKO VIETNAM COMPANY LIMITED

7/4A3 Linh Dong Street, Linh Dong Ward, Thu Duc City, Hochiminh City, Vietnam

C18200 CHROMIUM COPPER


C18200 CHROMIUM COPPER

C18200 Chromium Copper is the primary copper alloy used for resistance spot and seam welding. C18200 Chromium Copper is a high conductivity copper alloy that obtains optimum properties from both heat treatment and cold working. C18200 Chromium Copper offers resistance to softening at eleveated temperatures along with good stregnth and hardness. In addition to resistance welding applications C18200 Chromium Copper is used for numerous electrical applications where resistance to deformation at high temperature is required.


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OVERVIEW OF C18200 CHROMIUM COPPER

C18200 Chromium Copper are primary alloys, which are heat treated and cold worked to provide electrical conductivity of 80% IACS and hardness. C18200 Chromium Copper is used in applications that require deformation resistance at high temperatures.

C18200 Chromium Copper  RWMA Class 2 has slightly lower conductivity and higher mechanical properties than Class 1. C18200 Chromium Copper  RWMA Class 2 is general purpose resistance welding electrode materials for production spot and seam welding of most materials. C18200 Chromium Copper  RWMA Class 2 is suitable for spot welding electrodes, projection welding electrodes, seam welding electrodes, shafts and bearings, flash welding electrodes and current-carrying structural members, and are also available as high strength and high electrical conductivity castings for use as welding platens and secondary circuit structural members. C18200 Class 2 material should be used in the heat-treated condition.

C18200 Chromium Copper
C18200 Chromium Copper

These materials C18200 Class 2 are stronger than Class I materials, but have slightly lower conductivity. C18200 Chromium Copper  RWMA Class 2 is used for the spot and seam welding of cold and hot-rolled steel, stainless steel and low conductivity brass and bronze. They are also used as flash welding dies and as electrodes for the welding of galvanized steel and other coated materials.

C18200 Chromium Copper Alloy
C18200 Chromium Copper Alloy

C18200 Chromium Copper is a type of alloy used in various applications, ranging from automotive to aerospace industries. C18200 Chromium Copper is a combination of chromium and copper, with a specific formulation that provides high strength, corrosion resistance, and durability. C18200 Chromium Copper is commonly used in piston rings, valves, and other components in engines due to its excellent wear resistance and ability to withstand high temperatures. C18200 Chromium Copper is also used in high-temperature tubing and heat exchangers due to its good mechanical properties and tolerance to thermal stress. 

C18200 Class 2 Chromium Copper
C18200 Class 2 Chromium Copper

 

PROPERTIES OF C18200 CHROMIUM COPPER

PROPERTIES OF C18200 CHROMIUM COPPER

Chemical Composition

Mechanical properties

Physical properties

%Cu 98.0 99.4 Brinell hardness (HRB min) 75 84 Density (kg/dm3)   8.9  
%Cr 0.6 1.2 Tensile Strength (N/㎟ min) 352 483 Specific Heat J/(g*K)   385.5
%Fe   0.1 0.2% Proof Stress (N/㎟ min)   248    448 Thermal Expansion 10-6 K   17.6
%Pb   0.05 Elongation (%min)   18 Thermal Conductivity W/(m*K)   323.6
%Si   0.1       Electrical Conductivity IACS% 70 80
Other   0.5       Temperature limit on heat ℃ 500 550

APPLICATION OF C18200 CHROMIUM COPPER

C18200 Chromium Copper Alloy used in resistance welding machine electrodes, seam welding wheels, electrical switch gear, electrode holder jaws, cable connectors, current carrying arms and shafts, circuit breaker parts, arcing and bridging parts, grid side rods in electron tubes, molds, spot welding tips, flash welding electrodes, electrical and thermal conductors requiring greater strength than copper, switch contacts. In details as below:

  • Resitance Welding Machine Electrodes
  • Seam Welding Wheels
  • Electrical Switch Gear
  • Electrode Holder Jaws
  • Molds
  • Spot Welding Tips
  • Heat Exchangers

C18200 Chromium Copper Seam Welding Wheel
C18200 Chromium Copper Seam Welding Wheel

ELECTRICAL: Switch Contacts, Electric Motor and Generator Components, Contacts, Wire, High Temperature, Semi Conductor Bases, Parts for Electronic Devices, Cable, Connectors, Thermal Conductors Requiring Greater Strength than Copper, Switch Gears, Electrical Connectors, Electrical Conductors Requiring Greater Strength than Copper, Arcing and Bridging Parts, Circuit Breaker Parts, Electron Tube Grid Side Rods

INDUSTRIAL: Seam Welding Wheels, Electrode Holder Jaws, Flash Welding Electrodes, Plastic Mold Components, Resistance Welding Machine Electrodes, Flash Welding Electrodes, Current Carrying Shafts and Arms, Wear Plates on Heavy Equipment, Heat Sinks, Structural Parts, Spot Welding Tips, Molds


ISO 9001 : 2015 CERTIFIED COMPANY
ISO 9001 : 2015 CERTIFIED COMPANY -  KOJAKO VIET NAM

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