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2.1291

Standards

Material No.
2.1291
EN Material No.
CW105C
EN Designation
CuCr1
UNS
C18200
RWMA
Class 1

Description

CuCr1 is a low-contained copper alloy and is thermally aged.

Special properties

Good mechanical properties and a high thermal and electrical conductivity. High strength.

Chemical Composition

C
%
NULL
Si
≤ %
≤ 0.10
Mn
≤ %
NULL
P
≤ %
NULL
S
≤ %
NULL
Cr
%
0.30 - 1.20
Mo
%
NULL
Ni
%
NULL
V
%
NULL
N
%
NULL
Ti
≤ %
NULL
Cu
%
Rest
Al
%
NULL
Zr
%
NULL
Co
%
NULL
B
%
NULL
Fe
%
≤ 0.08
Mg
%
NULL
W
%
NULL
Ta
%
NU
Be
%
NULL
O
%
NULL
H
%
NULL
Pd
%
NULL
Nb
%
NULL
Ce
%
NULL
Pb
%
NULL
Zn
%
NULL
Y
%
NULL
La
%
NULL

Mechanical Properties 20°C

Hardness HB 30
≤ HB
145
0.2% Yield strength Rp
≥ N/mm²
310
Tensile strength Rm
N/mm²
≥ 400
Elongation A5
≥ %
12
Resistant on air up to
°C
NULL
Modulus of elasticity
kN/mm²
117

Physical Properties 20°C

Density
g/cm³
8.9
Specific heat capacity
J/kg K
385
Thermal conductivity
W/m K
320-330
Electrical resistivity
Ω mm²/m
0.022
Electrical conductivity
MS/m
> 47

Suitable welding
filler materials

NULL

Application

Electrical engineering, spot welding (automotive industry)

Available forms for 2.1291 / CuCr1

Sheets/Plates
Lieferform
Bars
Lieferform
Wire
Lieferform
Tubes/Pipes
Lieferform
Forged / cast parts
Lieferform
Finished part (drawing)
Lieferform