Chromium Zirconium Copper Alloy C18150

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Chromium Zirconium Copper Alloy C18150

Chromium Zirconium Copper Alloy C18150

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DESCRIPTION

Basic Info
Model NO. C18150
Common Fabrication Process Bending,Cold Heading, Machining etc.
Rwma Class 2
Resistance Welding Industry Spot Welding, Seam Welding, Butt Welding Dies
Consumer Pensil-Type, Light Soldering Guns, Tips
Electrical Resistance Welding Electrodes
Industrial Welding Wheels,Rod Extension
DIN 17666 Cucrzr
Transport Package Crates, Wooden Cases and Other Forms
Specification ASTM, GB
Trademark Suhua, OEM, ODM
Origin Jinjiang, Jiangsu, China
HS Code 7407100000
Production Capacity 60tons/Month
Product Description
Chemical composition(%)
Cr0.5 - 1.5
Zr0.02 - 0.2
CuBalance

Material characteristics
Corrosion resistant
High electrical conductivity
High strength
High hardness
Deformation resistant

Typical applications

Resistance welding electrodes
Seam welding
Flash and butt welding dies
Welding gun arms, welding platens, molds, spot welding tips, seam welding shafts
Caps and shanks, Circuit breaker parts
Collector connector, collector housing, connector bar, connector lead bars
Cross wire welding electrodes and components, Electrode holders and adaptors, Power generation products,
Transmission devices


Mechanical properties

Form Temper Temper codeTensile strength (KSI)YS-0.5% Ext(KSI)Elongation(%)Rockwell B scaleSection size(in)
RodPrecipitation heat treated or spinodal heat treated and hardTL0481 Typ79 Typ14 Typ82 Typ0.485
Precipitation heat treated or spinodal heat treated and hardTL0479 Typ75 Typ16 Typ78 Typ0.75
Spinodal hardened-low strenth(ATLS)TX0065 Min55 Min13 Typ75 Typ1.0
WirePrecipitation heat treated or spinodal heat treated and 1/2 hardTL0268 Typ58 Typ19 Typ75 Typ0.6
Precipitation heat treated or spinodal heat treated and 1/2 hardTL0269 Typ49 Typ15 Typ76 Typ0.7
Precipitation heat treated or spinodal heat treated and hardTL0468 Typ66 Typ15 Typ73 Typ0.5
Precipitation heat treated or spinodal heat treated and hardTL0468 Typ63 Typ20 Typ74 Typ0.6
* Measured at room temperature , 68F(20C)

Chromium Zirconium Copper general introduction

Chromium zirconium Alloy C18150 has good thermal and electrical conductivity. More than 400 types of these copper alloys are available, but C18150 is highly preferred since it has high strength and wear resistance at elevated temperatures. C18150 is used extensively for cap-style resistance welding electrodes. It can provide less sticking and resist deformation for much longer than its copper-chrome counterpart in some specific situations.

The chemical composition of C18150 is 1% chromium, 98.85% copper, and 0.15% zirconium. The addition of Zirconium to chromium copper improves creep resistance at high operating temperatures and reduces sticking of electrodes to the work during spot welding of galvanized or coated materials. The physical copper properties of C18150 include a density of 8.89 grams per cubic centimeter.

TYPICAL USES OF CHROMIUM ZIRCONIUM

STRESS RELAXATION

Chromium zirconium is a unique copper alloy that's able to decrease stress under constant strain. It's typically used with steel bolts in turbine casting, which must be straightened and typed.

MACHINING

Machining includes a variety of processes in which a raw piece of material is cut into a desired final shape and size by a controlled material-removal process. The machinability rating of C18150 is 30% which is moderate. The use of a cutting tool with a chip breaker is recommended.

MATERIAL PROPERTIES OF C18150

The C18150 copper alloy has a combination of properties as below:

  • Tensile strength: 220-540 N/mm2
  • 0.2% Proof strength: 100-440 N/mm2
  • % Elongation: 35-5
  • Hardness (HV): 55-175
  • Electrical conductivity: 80% IACS
  • Thermal conductivity: 300 W/moC (compared to copper 394 W/moC)

FABRICATION PROPERTIES

The most common fabrication properties of C18150 are bending, cold heading, and machining. The machinability rating of C18150 is 20. The fabrication properties of C18150 Copper can be categorized as either good, not recommended, fair, or excellent. The properties are as follows:

  • Good for:
    • Soldering
    • Brazing
    • Gas shielded arc welding
  • Excellent for:
    • Capacity for being cold worked
  • Fair for:
    • Butt welding
  • Not recommended for:
    • Oxyacetylene welding
    • Coated metal arc welding
    • Spot Welding
    • Seam Welding
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