Germany · DIN

CuCo2Be

DIN EN 1654 — Copper and copper alloys. Strip for springs and connectors

Chemical composition

wt% · log scale
0.1110Be0.4 – 0.7Co2 – 2.8Fe0.2Ni0.3Total Others0.5
  • min – max range
  • typical value

Mechanical properties

value range by condition
Hardness1 <= 1 mmsteel strip, B370, > 0, HVHardness1 <= 1 mmsteel strip, B500, > 0, HVHardness1 <= 1 mmsteel strip, B590, > 0, HVHardness1 <= 1 mmsteel strip, H060, > 0, HV

Chemical composition

ElementminmaxSimilarRemarks
Be0.40.7
Co22.8
Cu​​Bal​​
Fe0.2
Ni0.3
Total Others0.5

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
steel strip, B370, > 0, HV1 <= 1 mm ≤190
steel strip, B500, > 0, HV1 <= 1 mm ≤200
steel strip, B590, > 0, HV1 <= 1 mm ≤210
steel strip, H060, > 0, HV1 <= 1 mm ≤60
steel strip, H140, > 0, HV1 <= 1 mm ≤140
steel strip, H190, > 0, HV1 <= 1 mm ≤190
steel strip, H200, > 0, HV1 <= 1 mm ≤200
steel strip, H210, > 0, HV1 <= 1 mm ≤210
steel strip, R240, > 0, 1 <= 1 mm≤240≤20
steel strip, R480, > 0, 1 <= 1 mm≤480≤2
steel strip, R680, > 0, 1 <= 1 mm≤680≤8
steel strip, R750, > 0, 1 <= 1 mm≤750≤5
steel strip, R820, > 0, 1 <= 1 mm≤820
steel strip, Y130, > 0, 1 <= 1 mm≤130≤20
steel strip, Y370, > 0, 1 <= 1 mm≤370≤2
steel strip, Y550, > 0, 1 <= 1 mm≤550≤8
steel strip, Y650, > 0, 1 <= 1 mm≤650≤5
steel strip, Y750, > 0, 1 <= 1 mm≤750

Physical properties

20.0

Elastic modulusMean thermal expansionThermal conductivitySpecific heatResistivityDensityPoisson's ratio
8.80

Fatigue

1. Steel strip; Solution heat treated and cold worked; Reversed bending; T: 20°C; -

Test conditions
ItemDetail
Productsteel strip; Solution heat treated and cold worked
ExperimentReversed bending; T: 20°C
Specimen
Monotonic
PropertyValue
Tensile strength (MPa)517.0
Stress life
No.Cycles
11E8

Similar grades

GradeRegionSystem
CW104CItalyUNI
CW104CSpainUNE
CuCo2BeSpainUNE
CW104CSwedenSS
CW104CSwitzerlandSNV
CuCo2BeSwitzerlandSNV
CW104CFinlandSFS
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CW104CPolandPN
CuCo2BePolandPN
CW104CAustriaONORM
CuCo2BeAustriaONORM
CW104CNorwayNS
CuCo2BeNorwayNS
CW104CBelgiumNBN
CuCo2BeBelgiumNBN
CW104CHungaryMSZ
CuCo2BeHungaryMSZ
CW104CGermanyDIN
CW104CCzech RepublicCSN
CuCo2BeCzech RepublicCSN
CW104CUnited KingdomB.S.
CW104CBulgariaBDS
CuCo2BeBulgariaBDS
CW104CRomaniaASRO
CuCo2BeRomaniaASRO
CW104CFranceAFNOR NF
CuCo2BeFranceAFNOR NF
CuCo2BeItalyUNI
CuCo2BeUnited KingdomB.S.
C17500United StatesUNS
CuCo2BeSwedenSS