Copper Alloys According to RWMA Class-1, Class-2, Class-3, Class-4
We are Stockholder & Distributors of Copper Alloy materials like Cadmium-Copper Alloy UNS C16200 RWMA Class-1, Zirconium-Copper Alloy UNS C15000 RWMA Class-1, Chromium-Copper Alloy UNS C18200 RWMA Class-2, Chromium-Zirconium-Copper Alloy UNS C18150 RWMA Class-2, Nickel-Silicon-Chromium Copper Alloy UNS C18000 RWMA Class-3, Nickel-Beryllium-Copper Alloy UNS C17510 RWMA Class-3, Beryllium-Copper Alloy UNS C17200 RWMA Class-4 in the form of Sheets, Plates, Strips, Rods, Bars, Wires etc.
Copper Alloys
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RWMA Class
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Type of Material
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CDA No.
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Primary Use
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1
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Copper-Cadmium
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C16200
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Cadmium Copper is a general-purpose material for resistance welding use. The addition of Cadmium increases the metal's hardness and give it high electrical and thermal conductivity. It is commonly used for spot welding aluminum alloys, magnesium alloys, coated materials, brasses, and bronzes. It is also used for spot welding electrodes, welding fixture components, seam welding wheels, seam welding shafts, and flash and butt welding dies.
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1
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Copper-Zirconium
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C15000
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Zirconium Copper is used in spot welding electrodes and seam weld wheels. It is particularly useful when welding galvanized materials because of its high thermal conductivity, which prevents sticking.
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2
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Copper-Chromium
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C18200
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Chromium Copper is the primary copper alloy for high level production spot and seam welding of clean mild steel, low alloy steels, stainless steel, low conductivity brasses and bronzes, nickel-silver, nickel, nickel alloys, and monel. It is also suitable for projection welding dies, seam welder shafts and bearings, flash and butt welding dies, and current-carrying structural members.
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2
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Copper-Chromium-Zirconium
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C18150
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Chromium Zirconium Copper is used as an electrode material for welding galvanized steel and other metallic-coated materials. It has improved creep resistance at high operating temperatures.
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3
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Copper-Nickel-Silicon-Chromium
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C18000
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This alloy is a very hard, heat-treatable copper with moderate electrical conductivity that is ideal for use as seam weld wheels, projection welding dies, flash and butt welding dies, current-carrying shafts and bushings, high stressed structural current-carrying members, electrode holders, and high pressure electrodes where the welded material has a high electrical resistance.
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3
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Copper-Nickel-Beryllium
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C17510
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This alloy is heat-treatable with moderate electrical and thermal conductivity and high tensile strength. It is recommended for projection welding dies, flash and butt welding dies, current-carrying members, and heavy-duty offset electrode holders. It is also generally recommended for spot and steam welding steels with high electrical resistance, such as stainless steel.
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4
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Copper-Beryllium
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C17200
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Beryllium Copper has extremely high hardness and tensile strength but less electrical conductivity than Class III alloys. It is recommended as the electrode material for special flash, upset-butt and projection welding applications where pressures are extremely high and wear is severe, but where heat is not excessive. They are used frequently in the form of inserts and facings and seam welding bushings.
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Other Copper
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CDA No.
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Type of Material
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CDA No.
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Primary Use
|
|
101
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Oxygen-Free Copper
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C10100
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Oxygen-Free Copper has the highest conductivity of all coppers. It is used for electrical and electronic conductors, wave guides, cavity resonators, super conductor matrixes, vacuum tube and solid-state devices, and glass to metal seals.
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110
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Electrolytic Copper
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C11000
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Electrolytic Copper's malleability allows it to be readily bent, soldered, drilled, welded, and formed to fit almost any design. It is primarally used for plumbing fitting and some electrical compenents that do not require extensive machining.
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Other Materials
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CDA No.
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Type of Material
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Primary Use
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|
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Anviloy
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Anviloy is a tungsten-based material that contains a mixture of nickel, iron, and molybdenum. It has low thermal expansion, good thermal conductivity, and a high melting point. Anviloy is readily machinable and cools very quickly, making it an ideal choice for die cast tooling.
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95400
62300
62400
63000
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Aluminum Bronze
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Aluminum bronzes have higher strength and corrosion resistance than other bronze alloys. It is commonly used in the MIG welding processes and in applications in which resistance to corrosion is desired, such as aeronautical components, underwater fastenings, ship propellers, water supply, and oil and petrochemical components.
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660
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Bearing Bronze
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Bearing Bronze is commonly used in bushings, washers, pumps, and bearings. It is easy to machine and has a long life.
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RWMA Class II Chrome Copper (Alloy 18200)
RWMA Class II Zirconium Copper (Alloy 18150)
RWMA Class III Beryllium Copper (Alloy 17510)
RWMA Class III Beryllium Free Copper (Alloy 18000)
RWMA Class 4 Beryllium Copper (Alloy 17200)
RWMA Class 10 Copper Tungsten (1W3, 5W3)
RWMA Class 11 Copper Tungsten (10W3)
RWMA Class 12 Copper Tungsten (30W3)
RWMA Class 13 Pure Tungsten
RWMA Class 14 Molybdenum
101 Oxygen Free Copper
110 Electrolytic Copper
Anviloy
Seam Welding Wheels in Class II Chromium and Zirconium & in Class III
Mild Beryllium and Beryllium-Free
Aluminum Bronze (Alloy 95400, 62300, 62400, & 63000)
660 Bearing Bronze
Copper Base Alloys
RWMA CLASS 1 ALLOY
ZIRCONIUM-COPPER, suited to welding aluminum and magnesium alloys, coated materials, brass and bronze.
Class 1 alloy is superior to pure copper as an electrode material and is recommended as a general purpose material for resistance welding use. It may be used for spot welding electrodes, seam welding wheels and welding fixture components. It is not heat treatable.
RWMA CLASS 2 ALLOY
CHROMIUM-COPPER, suited to welding cold- and hot-rolled steels, stainless steel, and low-conductivity brasses and bronzes.
Class 2 alloy is a superior resistance welding electrode material, recommended for high-production operations. It is used for welding electrodes, projection welding electrodes, seam welding shafts and bearings, flash and butt welding electrodes, and current-carrying structural components. Available in forms for use as welding gun arms, welding platens and secondary-circuit structural members. It is heat treatable.
ZIRCONIUM-CHROMIUM-COPPER is suited to welding galvanized steel and other metallic-coated steel.
This is a specially heat-treated alloy which meets the minimum electrical conductivity and hardness specifications of Class 2 alloy.
RWMA CLASS 3 ALLOY
BERYLLIUM-NICKEL-COPPER (55) are suited to welding steels having high electrical resistance, such as stainless steel.
NICKEL-COPPER (55A) is a beryllium-free alloy
Class 3 alloy is recommended for projection welding electrodes, and flash and butt welding electrodes. With its higher strength it is also used on highly-stressed current-carrying parts such as electrode shanks and heavy-duty electrode holders. It is heat treatable.
RWMA CLASS 4 ALLOY
BERYLLIUM-COPPER has extremely high hardness, and is recommended for projection, flash and butt welding electrodes. It has lower conductivity than Class 3 alloy but it is harder and more wear resistant. It should be considered where there is concern with high pressure density and severe wear, but where heating, due to its low conductivity, is not excessive.
It is used frequently in the form of inserts, tooling facings, and seam welder bushings. It is available in the annealed condition which is more readily machined and then subsequently heat treated.
AMS 4880 Nickel Aluminum Bronze
AMS 4881 Nickel Aluminum Bronze
AMS 4533 Copper
AMS 4534 Copper
AMS 4590 Nickel Aluminum Bronze
AMS 4616 Silicon Bronze
AMS 4640 Nickel Aluminum Bronze
C10100 Oxygen Free Electronic Copper
C10200 Oxygen Free Copper
C16200 Cadmium Copper
C16500 Cadmium Tin Copper
C17200 Copper
C17300 Leaded Beryllium Copper
C17500 Copper
C17510 Copper
C18000 Copper Chromium Nickel Silicon
C18150 Copper Chromium Zirconium
C18200 Chromium Copper
C11000 (CDA 110 / Cu-ETP) Electrolytic Tough Pitch (ETP) Copper
C14500 Tellurium Copper (Deoxidized Grades)
C17510 Copper
C18000 Copper Chromium Nickel Silicon
C18150 Copper Chromium Zirconium
C18200 Chromium Copper
C31400 Leaded Commercial Bronze
C31600 Nickel Leaded Commercial Bronze
C35200 Dezincification Resistant Machine Brass
C36000 Free Machining Brass / Free Cutting Brass
C46400 Naval Brass "Lead Free"
C54400 Phosphor Bronze "B-2" "Free Cutting"
C62400 Aluminum Bronze
C65500 High Silicon Bronze "A"
C90300 Tin Bronze "Navy G"
C90700 Tin Bronze "SAE 65"
C92200 Leaded Tin Bronze "Navy M"
C92300 Leaded Tin Bronze
C11000 (CDA 110 / Cu-ETP) Electrolytic Tough Pitch (ETP) Copper
C14500 Tellurium Copper (Deoxidized Grades)
C18150 Copper Chromium Zirconium
C10100 Oxygen Free Electronic Copper
C11000 (CDA 110 / Cu-ETP) Electrolytic Tough Pitch (ETP) Copper
C17200 Copper
C17510 Copper
C18150 Copper Chromium Zirconium
C18200 Chromium Copper
C70600 Copper Nickel "90/10"
C71500 Copper Nickel "70/30"
Inspection & Approval Certificates : C/W Certificate (Calibration Works Certificate) EN10204 3.1 / DIN 50049 3.1 / ISO 10474 3.1 Mill Test Certificate, NACE MR-0103 / NACE MR-0175 / ISO 15156, European Pressure Equipment Directive PED-97/23/EC, AD-2000-WO, ASME Boiler & Pressure Vessel Code Sec.II Part A Ed. 2010 Add. 2011, API 6A (American Petroleum Institute), with 3.2 certificate duly Certified & Approved by LRS (Lloyd's Register), GL (Germanischer Lloyd), BV (Bureau Veritas), DNV (Det Norske Veritas), ABS (American Bureau of Shipping), SGS, TUV, RINA, IRS, NORSOK Approved Standard M-630, M-650 Rev.3, NADCAP Certified in accordance with SAE Aerospace Standards, RWMA Class (Resistance Welding Manufacturing Aliance)
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Regards,
CONTACT PERSON :
MUKESH SHAH
Director
MOBILE No. 0091- 9820292499
EMAIL - sales@rolexalloys.com
ROLEX ALLOYS INTERNATIONAL
( High Nickel Alloy & Super Alloy Materials )
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