DAIKOWT CuSn6

GTAW
  • COPPER ALLOYS
CuSn

Description

Tin bronze alloy rod
High-alloy tin bronze, suitable for welding similar bronzes and often also for joining copper with steel. Also used for hard facing on cast iron. Suitable for Cu-Sn, Cu-Sn-Zn-Pb, and cast iron. For GMAW brazing on steel, pulsed arc is recommended. Also excellent for creating works in artistic foundry.
Specifications
AWS A5.7
ERCuSn-A
DIN 1733
SG- CuSn6
Shielding
I1
Positions
PA, PB, PC, PD, PE, PF
Current
DC-
Packaging Type
5kg carton tube
Asme qualifications
F-No (QW432)
33
A-No (QW442)
-

Hardness

80HB
Chem. Comp. %
DEFAULT
Mn
0.25
Al
0.001
Sn
6.5
P
0.01
Si
0.1
Fe
0.01
Zn
0.01
Pb
0.01
Mechanical Properties
min
variant
Tensile strength Rm MPa
240
250
Yield strength Rp0.2 MPa
-
130
Elongation A (L0=5d0) %
0
20
Impact Charpy ISO-V
-
-
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
product.packaging_types.product.packaging_types.product.packaging_types.5kg carton tube
product.packaging_types.product.packaging_types.product.packaging_types.5kg carton tube
Description

Application

CuSn is used for welding a wide range of copper-based alloys, both with each other and with C-Mn steels or cast iron. It is also ideal for repair and joining of castings. When a low dilution is obtained, the material is suitable for overlays aimed at providing support surfaces and/or corrosion-resistant coatings on steel components, such as shafts and other mechanical parts. However, it is not suitable for stainless steels because the chromium released during the process can cause embrittlement. Tin bronze welding metal tends to stasis due to its wide melting range. Preheating to approximately 200 °C can improve fluidity in welding thick sections. To prevent hot cracking, it is advisable to keep the interpass temperature below 200 °C.

Alloy Type

Tin bronze alloy wire for welding similar tin bronze (phosphor bronze) alloys.

Microstructure

A multi phase copper base structure with complex eutectoids.

Materials

Tin bronze up to 10%Sn+0.5%P. Cu + 20-25%Sn. Cu + 40%Zn, manganese bronze.

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