DIN 2.1291 CW105C C18200 Chromium Copper Rod For Spot Welding

Place of Origin China
Certification ISO,SGS
Model Number C18200 DIN 2.1291
Minimum Order Quantity 100kgs
Price 18USD
Packaging Details Packed into wooden case
Delivery Time Usually 10-15 days
Payment Terms L/C, T/T, Western Union
Supply Ability 200T/Month

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Product Details
Name C18200 Copper Rods Grade C18200 CuCr1-RWMA Class2
Specification As The Requirement Of Customers' Advantage With Good Electrical Conductivity
Safe Handling No Special Health Risk Machining Property Good
Density G/cm³ 8.89 Cu(Min) Standard
Export To All Over The World
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C18200 Chromium Copper Rods


Spot Welding Chromium Copper Rods


DIN 2.1291 Chromium Copper Rods

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Product Description

RWMA Class 2, DIN 2.1291, CW105C C18200 High Conductivity Chromium Copper Rod For

RWMA Class2 high conductivity chromium copper alloy Casting Forging Rod Plate for Spot welding

Product Normal Description:

Product Name Chromium Copper Rods

C18200, C


Standard: RWMA Class 2, DIN 2.1291, CW105C to EN, CuCr.
Product Specification: we could provide beryllium copper alloy according customers' requirement.
Delivery Time: Usually within 10~15 days

Packed in woodencases

Product Brand: CUBERYLLIUM®


CuCr1 – UNS.C18200 Chromium Copper is a heat treatable copper alloy offering good electrical conductivity, resistance to softening at elevated temperatures and good strength and hardness. This combination of properties makes C18200 one of the preferred resistance welding electrode materials for a variety of applications. Nominally composed of 99.1% copper and 0.9% chromium, this heat treatable alloy can be brought to its softest condition by annealing it at 1000°C (1850°F) for one-half hour at temperature, then rapidly quenching it in water. In this annealed condition, the alloy is ductile and easily formed, and has an electrical conductivity of about 40% IACS.


RWMA Class 2 materials are stronger than Class 1 material, have slightly lower connductivity.


Chemical Composition of CuCr1-UNS.C18200 Chromium Copper Alloys:

Product Grade: CUBERYLLIUM ®-182 (UNS.C18200)

Cr: 0.60-1.20%
Cu: Balance
Note: Copper plus additions equal 99.50% minimum.

Typical Physical Properties of CuCr1-UNS.C18200 Chromium Copper Alloys:

  Metric Units Imperial Units
Density 8.89 gm/cm³ @ 20°C 0.321 lb/in³ @ 68°F
Specific Gravity 8.89 8.89
Melting Point (Liquidus) 1075°C 1967°F
Melting Point (Solidus) 1070°C 1958°F
Coefficient of Thermal Expansion 17.6 x 10 -6 / °C (20-100°C) 9.8 x 10-6 (77-212°F)
Themal Conductivity 323.6 W/m. °K @ 20°C 187.0 BTU/ft²/ft/hr/°F @ 68°F
Electrical Conductivity 0.468 MegaSiemens/cm @ 20°C 80% IACS@ 68°F
Modulus of Elasticity (tension) 117,000 MPa 17,000ksi


1: the units are based upon US Customary.

2: the typical physical properties apply to age hardened products.


Mechanical Performance of CuCr1-UNS.C18200 Chromium Copper Alloys:

Description Articles Temper Specification (mm)

Tensile Strength







C18200 TH04 4-20 >380 >10 75-80
20-40 >475 >10 72-80
40-60 >450 >8 65-75

The detailed mechanical properties will be available on request from customers.


Most Commonly Temper Used:

Chromium copper rods/ bars/tubes: AT(TF00), HT(TH04)

Chromiium copper plates: AT(TF00), HT(TH04)


Typical Uses For CuCr1-UNS.C18200 Chromium Copper Alloys:

Consumer:Rod Extensions, Pencil-type, Light Soldering Guns, Tips

Industrial:Resistance Welding Machine Electrodes, Resistance Welding Equipment, Plastic Mold Components, Flash Welding Electrodes, Electrode Holder Jaws, Seam Welding Wheels, Wear Plates on Heavy Equipment, Heat Sinks, Spot Welding Tips, Molds

Electrical Industry:Cable, Connector, Thermal Conductors, Switch Gears, Electrical Connector, Circuit Breaker Parts, Switch Contacts, Electric Motor and Generator Components, Parts for electronic Devices


Product Photos:

DIN 2.1291 CW105C C18200 Chromium Copper Rod For Spot Welding 0