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AWS A5.7 ERCuSi-A Copper Silicon Bronze Welding Wire welding rod ( DIN 1733 SG-CuSi3 )
Standard:
AISI/AWS A5.7
ASME SFA 5.7 ERCuSi-A
DIN SG-CuSi3
BS EN14640 CuSi3Mn1


Description:
Silicon bronze welding wire
Description: contains 3% silicon and small amounts of manganese bronze wire, melting point is 965-1035 ℃,
good welding performance, high weld mechanical properties.
Application: used for brazing silicon bronze, brass and steel, galvanized steel sheet.
Conforming: GB/ t9460-2008 model: HSCuSi
Quite: AWS a5.7-84 model: ERCuSi-A
Best for joining and overlay welding of Cu-Zn alloy, especially for the MIG welding of zinc coated steel sheet.Pre-heat suggested when MIG overlay welding for large size products and use pulsed arc welding while overlay the steel.
Application:
Joining and overlay welding of copper zinc alloys ,low copper materials,also for an excellent wear resisting overlay welding on low and unalloyed steel as well as cast iron For MIG overlay welding of large work pieces preheating is recommended For multilayer welding on steels,pulsed arc welding is recommended .Appropriate for MIG brazing of zinc coated sheets.
Pruduct Technical Data:
(A)ERCuSi-A welding wire Chemical Composition of Deposited Metal(%)
| Elements | Cu | Al | Fe | Mn | Pb | Si | Sn | Zn | Other |
| Sample | bal | 0.01 | 0.5 | 1.5 | 0.02 | 2.8-4.0 | 1.0 | 1.0 | 0.5 |
(B)ERCuSi-A welding wire Mechanical Properties of Deposited Metal(%)
ITEM | Hardness | Tensile Strength(MPa) | Elongation(%) |
Samples | 80HB | 330-370 | 40 |
AWS A5.7 ERCuSi-A welding wire Packing&Shipping:
1. AWS ERCuSi-A welding wire
2. Wire Diameter Dia(mm) :0.8-5.0
3. Delivery time:Within 25days after receiving your order.
Package details:
1. 15kg/spool;
2.Spool+plastic film+color box+pallet;
3. As clients’ requirement
Delivery details:
1. Time: Normally ready goods within 8 to 25 days.
2. Term: CIF CNF FOB
AWS ERCuSi-A welding wire pictures:


![]() | CO2 Solid Welding Wire Model: ER70S-6, ER49-1, ER70S-3, ER70S-2, ER100S-G etc. Size: 0.8mm, 0.9mm, 1.0mm, 1.2mm, 1.6mm Packing: 1kg, 5kgs, 15kgs 20kgs packing |
![]() | Flux Cored Welding Wire Model: E71T-1, E71T-1C, E71T-1W, E71T-GS etc. Size: 0.8mm, 0.9mm, 1.0mm, 1.2mm, 1.6mm Packing: 1kg, 5kgs, 15kgs packing |
![]() | Stainless Steel Welding Wire MIG/TIG Model: ER308L, ER309L, ER316L etc. Size: 0.8mm-1.6mm for MIG; 1.6mm- 4.0mm for TIG Packing: 1kg, 5kgs, 15kgs for MIG ; 5kg/tube for TIG |
![]() | Aluminum Welding Wire MIG/TIG Model: ER4043, ER5356, ER5183 etc. Size: 0.8mm-1.6mm for MIG; 1.6mm- 4.0mm for TIG Packing: 0.5kg, 2kgs, 6kgs, 7kgs for MIG; 5kg/tube for TIG |
![]() | Welding Electrodes Model: E6013, E7018, E308L-16, E316L-16, E4043 etc Size: 2.5mm, 3.2mm, 4.0mm, 5.0mm Packing: 1kg/2kgs/2.5kgs/box, 20kgs/carton, 1ton/pallet |
![]() | Tungsten Electrode Model: WT20 WL20 WL10 WL15 WC20 WP WZ3 WZ8 etc. Size:1.0mm 1.6mm 2.0mm 2.4mmm 3.0mm 3.2mm 4.0mm. Packing: 10pcs/box, 200boxes/Carton |
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