China ECuSn-B (CuSn6 / UNS C51900 / CW452K) Tin Bronze Welding Rod / Wire, Diameter 0.8–5.0 mm, Wear Resistant & Corrosion Resistant Manufacture and Factory

ECuSn-B (CuSn6 / UNS C51900 / CW452K) Tin Bronze Welding Rod / Wire, Diameter 0.8–5.0 mm, Wear Resistant & Corrosion Resistant

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Product Description

ECuSn-B (also known as CuSn6, UNS C51900, or CW452K) is a tin bronze welding rod/wire primarily used for welding tin bronze alloys, copper alloys, and dissimilar joints between copper alloys and steel.

With a controlled tin (Sn) content, this alloy provides excellent wear resistance, good corrosion resistance, and stable mechanical properties.
It is well suited for applications requiring durability, low friction, and reliable weld performance in industrial environments.

Chemical Composition (Typical) / Approximate Values

Element	Content (%)
Copper (Cu)	Balance (~93–95)
Tin (Sn)	5.0 – 7.0
Zinc (Zn)	≤ 1.0
Lead (Pb)	≤ 0.05
Iron (Fe)	≤ 0.5
Others	≤ 0.5

Note: Exact composition may vary slightly depending on manufacturing standard and application requirements.

Technical Parameters

Parameter	Specification
Material Type	Tin Bronze Alloy (ECuSn-B / CuSn6 / UNS C51900 / CW452K)
Product Form	Welding Rod / Welding Wire
Diameter	0.8 – 5.0 mm (customizable)
Length	250 – 1000 mm (customizable)
Melting Point	Approx. 880–1020 °C
Conductivity	Moderate
Corrosion Resistance	Good
Wear Resistance	Excellent
Packaging	Coils or straight rods

Custom Attributes / 可定制属性

Attribute	Options / Description
Diameter Tolerance	±0.01 mm
Surface Finish	Bright, Polished
Packaging Type	Coil, Bundle, Straight Rods
Heat Treatment	As-drawn, Annealed
Welding Method	TIG (GTAW), MIG (GMAW), Brazing
Certification	ISO 9001, RoHS, REACH (optional)
Special Coating	Optional anti-oxidation coating
Length Customization	Any length within 250–1000 mm