DAIKOWT 412

GTAW
  • COPPER ALLOYS
CuNi 90-10

Description

90/10 copper-nickel solid rod
The weld metal of this wire rod is designed to match the CuNi 90/10 alloys and is nominally 86% Cu and 10,5% Ni. Applications include offshore construction, desalination plant, evaporators, condenser, etc, in salt and sea water processing system.
Specifications
ISO 24373
S Cu 7061
AWS A5.7
ERCuNi
DIN 1733
SG-CuNi10Fe
Shielding
I1
Positions
PA, PB, PC, PD, PE, PF
Current
DC-
Packaging Type
5kg carton tube
Asme qualifications
F-No (QW432)
34
A-No (QW442)
-

Hardness

80HV - 110HV
Chem. Comp. %
DEFAULT
Mn
0.8
Ni
10
P
0.003
S
0.005
Si
0.01
Fe
1.2
Ti
0.3
Pb
0.001
Mechanical Properties
min
variant
Tensile strength Rm MPa
345
400
Yield strength Rp0.2 MPa
-
180
Elongation A (L0=5d0) %
0
32
Impact Charpy ISO-V
-
200J @ 20°C
Impact Charpy ISO-V
-
-
Welding Parameters
1.6 mm
2.4 mm
Ampere
110A - 150A
175A - 250A
Voltage
-
-
Packaging
Ø 1,6÷4,0 mm
Ø 1,6÷4,0 mm
Packaging Type
5kg carton tube
5kg carton tube
Description

Application

Suited for surfacing and cladding applications, these consumables exhibit optimal performance when accompanied by a fitting buttering layer, commonly alloy 400 or pure nickel. Their versatile applications extend to offshore construction, desalination plants, and various components like evaporators and condensers used in salt and sea water processing systems. Notably, preheating is typically unnecessary, and the interpass temperature is restricted to a maximum of 150°C, eliminating the need for post-weld heat treatment (PWHT). Ensuring the weld zone's purity is paramount, necessitating meticulous precautions to prevent contamination with foreign materials, particularly those containing lead, tin, or zinc. Such scrupulous measures are imperative to safeguard against any potential weld metal cracking.

Alloy Type

90/10 copper-nickel alloys.

Microstructure

Solid solution, single phase alloy.

Materials


EN W.Nr.: 2.0872 (CuNi10Fe), 2.0882 (CuNi30Mn1Fe), 2.0883 (CuNi30Fe2Mn2).
ASTM: C71500, C96400 (cast).
UNS: C70600, C96200.
PROPRIETARY: Cunifer 10 (VDM), Osna®-10 (KME).

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