CuNi18Zn20

Normaanduiding

EN: CuNi18Zn20/CW409J
UNS: C 76400*

Chemische samenstelling

Cu: 60 - 63 %
Ni: 17 - 19 %
Zn: Rest

Fysische eigenschappen1)

Soortelijk gewicht: 8,7 g/cm³
Elektrische geleidendheid: 3,3 m/Ω·mm² = 5,5 % IACS2)
Thermische geleidendheid: 33 W/m·K
E-module: 140 GPa3)

 

1) Richtwaarden bij kamertemperatuur
2) IACS =International Annealed Copper Standard
3) 1 GPa = 1 kN/mm²


Verwerkingsaanwijzingen

Lasbaarheid: goed
Soldeerbaarheid: middel
Spanningscorrosie: geen

Mechanische eigenschappen

Toestand R380/H110 R450/H140 R500/H160
Trekvastheid RM 380-450 MPa4) 450-520 MPa 500-590 MPa
Strekgrens RP0.2 ≤ 250 MPa ≥ 250 MPa ≥ 410 MPa
Uitzetting A50 ≥ 27 % ≥ 9 % ≥ 3 %
Hardheid HV 85-115 115-160 160-190
Toestand R580/H180 R610/H200
Trekvastheid RM 580-670 MPa 640-730 MPa
Strekgrens RP0.2 ≥ 510 MPa ≥ 600 MPa
Uitzetting A50 - -
Hardheid HV 180-210 200-230

4) 1 MPa = 1 N/mm²

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