CHROMZIRC-328 is a copper chromium zirconium alloy with the outstanding electrical and heat transfer properties of copper but without the drawbacks of being soft and ductile.

The addition of a small amount of chromium ensures its high strength, especially after suitable heat treatment that achieves its good mechanical properties.

CHROMZIRC-328 (copper chromium zirconium) is predominantly used in resistance welding equipment and in the field of electrical engineering.

Related Specifications of CHROMZIRC-328

  • CC102
  • C18150
  • CW106C
  • BS4577 A/2/2
  • BS2874
  • ISO 5182
  • 2.1293
  • CuCr1Zr
  • CuCrZr (DE)

Nominal Composition of CHROMZIRC-328

Cu rem, Cr 1.0%, Zr 0.1%

Mechanical Properties of CHROMZIRC-328

Ultimate Tensile Strength (N/mm²) Proof Stress (N/mm²) Elongation (%) Hardness (HB)
450 400 20 140HV

Key Features of CHROMZIRC-328

  • High electrical conductivity
  • High thermal conductivity
  • High strength
  • Resistance to softening at elevated temperatures

Applications of CHROMZIRC-328

Electrical | Switchgear components, circuit breaker parts, rotating electrical machinery; electrical and thermal conductors

Chemical processing | Turbine generators, current-carrying arms and shafts for process plants

Other | Resistance welding, electrodes, shafts, electrode holders, seam welding wheels and flash or butt welding dies

Columbia Metals - a leading supplier of CHROMZIRC-328

With decades of experience and a huge range of stock, Columbia Metals is an industry leader in the supply of CHROMZIRC-328 and other high quality specialist engineering alloys.

To buy or learn more about CHROMZIRC-328 contact us now, or fill in the enquiry form on the right hand side and we will be in touch shortly.

 Click here to download a CHROMZIRC-328 data sheet.

  Related Specifications Mechanical Properties
Alloy Name BS UNS BS EN Others Ultimate Tensile Strength N/mm² Minimum Yield Strength N/mm² Elongation % Hardness HB  
Be­ry­ll­iu­m Co­pp­er (B­EC­OL-25­) CB­10­1 C1­72­00 CW­10­1C AS­TM B1­96­; CD­A 17­20­0
CH­RO­MZ­IR­C-32­8 CC­10­2 C1­81­50 CW­10­6C BS­­4­5­­77 A/­­2­/­­2; IS­O 51­82 45­0 40­0 20 14­0H­V
CO­LD­UR-A® CS­10­1 C6­55­00­; C6­56­00 CW­11­6C AS­TM B9­8; AS­TM B2­49 48­5 26­0 20
CO­LP­HO­S 90 C5­44­00 AS­TM B1­39­; AS­TM B1­03 34­5-45­0 8-18
CO­LS­IB­RO­® DT­D4­98 C6­47­00­; C1­80­00 CW­11­1C 2.­08­55 55­0-64­0 43­0-59­0 10 15­5-18­0
CO­LS­PE­ED 90 C6­41­10 70­0-76­0 40­0-50­0 10-13 20­0-22­0
CZ­13­2 / CO­LF­IT DZ­R CZ­13­2 C3­53­30 CW­60­2N BS­28­74 35­0-38­0 20-25
NI­BR­ON SP­EC­IA­L® DT­D9­00­/4­80­5 C7­24­00 2.­15­04 77­0-85­0 55­5-63­0 12 22­9-24­0
PB­10­4 / CO­LB­RO­NZ­E PB­10­4 C5­21­00 CW­45­3K DT­D 26­5A­; BS B2­4 45­0-50­0 30­0-40­0 15-20
S3­18­03 / CO­LD­UP­LE­X S3­18­03 F5­1 62­0 44­8 25 28­0 ma­x
S3­25­50 / AM­AZ­ON 25­6 S3­25­50 AS­TM A2­40­; AS­TM A4­79 76­0 55­0 25 28­0 ma­x
S3­27­60 / SE­AC­OL-76­0 S3­27­60 F5­5 75­0 55­0 25 28­0 ma­x
SI­LV­ER­SP­EE­D-XL 56­0 45­0 20 18­5H­V
TR­OJ­AN C7­02­50­; C7­02­52 CW­11­2C 2.­08­57 69­0-80­0 57­0-75­0 10 19­0-20­0
ZA­MA­LL­OY (C­W7­04­R) C6­70­00 CW­70­4R BS­28­74­; UZ­19­Al­6 78­0-83­0 54­0-59­0 7-10