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Henan Signi Aluminium Co., Ltd.

4343/Sa-7/4343aluminum Aluminium Strip, Aluminum Strip for Air Cooling Fin Material, Aluminium Strip for Air Cooling Fin Material manufacturer / supplier in China, offering 4343/SA-7/4343aluminum Aluminium Strip for Air Cooling Fin Material, Marine Aluminum Alloy Aluminium Plate/Sheet (5052 5083 6061 7075 2024), Professional Manufacturer of Rail Transportation Aluminium Aluminium Plate and so on.

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Supplier Homepage Product Brazing aluminium sheet/strip 4343/SA-7/4343aluminum Aluminium Strip for Air Cooling Fin Material

4343/SA-7/4343aluminum Aluminium Strip for Air Cooling Fin Material

FOB Price: US $2,000 / Ton
Min. Order: 2 Tons
Min. Order FOB Price
2 Tons US $2,000/ Ton
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Transport Package: Carton Box
Payment Terms: T/T

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Basic Info
  • Model NO.: 4343/SA-7/4343
  • Thickness: 0.25mm
  • Type: Sheet and Strip
  • Packings: Carton Box, Then Outside: Wooden Case
  • Port of Loading: Qingdao,Shanghai
  • Trademark: Signi Aluminium
  • Origin: Henan China
  • Alloy: 4343/SA-7/4343
  • Width: 12mm to 1600mm
  • Clad Rate (%): 13~17
  • Place of Origin: Zhengzhou China (Mainland)
  • Application: Air Cooling Fin Material
  • Specification: CE
  • HS Code: 760700900
Product Description
4343/SA-7/4343Aluminum aluminium Strip for Aircooling fin Material

Aluminium brazing material production
Complex assemblies can be turned into single unit by just one pass through a brazing furnace. Aluminium brazing facilitates the joining of parts with a near-eutectic Ai-Si filler alloy, the liquid temperature which is about 50 º C lower than that of the core. In serial heat exchanger production the filler alloy is supplied via a thin clad on a core alloy.

Compound Material

Aluminium brazing material is a sophisticated multi-layer compound consisting of a core alloy which provides the stength and life cycle requirements of the heat exchanger and a clad brazing filler. A one-sided protection layer can also be clad, in order to prevent water-side radiator corrosion.

During brazing, only the clad brazing alloy melts, while the core alloys remain solid. The design and the applied materials of the heat exchanger are adjusted to optimize the brazing result regarding the required post braze mechanical properties as well as the corrosion resistance.

Roll cladding

Today, two basic cladding techniques, roll bonding and cast cladding, have become established industrially. Roll cladding is a solid-state welding process, which is used to join similar and dissimilar aluminium alloys, and represents the primary method of manufacturing fuselage skin sheet for aircraft, bright products and brazing sheet for automotive applications. The cladding layers are attached to the core slab by welding and metallurgical bonding using hot rolling. The cast cladding technique is based on a conventional direct chill mould modified in order to allow multiple metal streams to be casted into one single ingot.

Cladding thickness

Signi's well established, roll bonding process guarantees tight cladding thickness tolerances, which are essential for ensuring stable brazing results. Rather thin clad layers of 5% can be manufactured, as well as brazing materials also with a cladding thickness of 20%.
Performance index of air cooling fin materials
Alloy  Thickness(mm)  Tolerance(mm) Clad rate (%) 
4343/3003 0.25-0.3 ±0.007 13~17
4343/SA-7/4343 0.25 ±0.007 13~17
*OD: 1800max; 
*Width tolerance:±0.02mm;  
*Alloy\specification and mechanical property can be customized according to different requirement.

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