DAIKOWT CuSn9

GTAW
  • COPPER ALLOYS
CuSn

Description

Tin bronze alloy solid rod
This wire rod is intended for build-up welding on cast iron, particularly suitable for welding deep drawing sheets like body sheets. Its good flow characteristics allow it to be used for closing large welding gaps, especially highly recommended for furnace brazing. Suitable for example bronze with 10-12% Sn, copper-zinc alloys, copper tin zinc-lead alloys and cast alloys. Weld surfacing on cast iron. Preheating of the base material is usually not required. Pulsed argon arc welding is recommended for multilayer hard facing on steel.
Specifications
ISO 24373
S CuSn10MnSi (Cu 5211)
DIN 1733
-
Shielding
I1
Positions
PA, PB, PC, PD, PE, PF
Current
DC-
Packaging Type
5kg carton tube

Hardness

115HB
Chem. Comp. %
DEFAULT
Mn
0.25
Al
0.001
Sn
9.5
P
0.01
Si
0.25
Fe
0.01
Zn
0.01
Pb
0.01
Mechanical Properties
min
variant
Tensile strength Rm MPa
-
290
Yield strength Rp0.2 MPa
-
130
Elongation A (L0=5d0) %
-
14
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
5kg carton tube
5kg carton tube
Description

Application

Used for welding various copper-based alloys to themselves, CMn steels, or cast irons, and for repairing and joining castings, this consumable is also suitable for weld surfacing to provide a bearing surface and/or corrosion-resistant overlay on steel components, shafts, etc. Avoiding stainless steels is recommended due to chromium pick-up causing embrittlement. The tin bronze weld metal can be sluggish due to its wide melting range. Preheating to approximately 200°C can enhance fluidity when dealing with thick sections. To prevent hot cracking, it's advisable to maintain the interpass temperature below 200°C. This consumable is also applicable for welding copper materials if the presence of tin in the weld metal is acceptable, such as in copper and tin bronzes, particularly for joining copper-zinc alloys and steels. For multi-layer welding on steel, pulsed arc welding is advised, and it is also suitable for oven soldering.

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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