Copper, Brass and Bronze Brazing Alloys

DESCRIPTION & APPLICATIONS :

Copper and Brass Brazing Alloys are widely used filler metals for joining copper, copper alloys, steels, cast iron, and cemented carbide. These alloys are suitable for flame, induction, resistance, and furnace brazing applications. Known for their strength, conductivity, and cost efficiency, they are practical alternatives to silver brazing alloys in many industrial and fabrication jobs.

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Grades & specifications

Copper, Brass and Bronze Brazing Alloys — composition, operating temperature and international standards by grade
STAVINOX Ag Brazing Alloy	Normal composition %				Operating temp (°C)	International standards
STAVINOX Ag Brazing Alloy	Cu	Zn	Si	Others	Operating temp (°C)	IS 2927	DIN EN 1044	BS 1845	AWS A5.8	DIN 8513
STAVINOX SIBRO	60	39.6	0.4	-	880	Sc6 BACuZn4	Cu301	CZ6	-	L-CuZn40
STAVINOX MANBRO	60	39.6	0.2	Mn 0.2	910	SC8	-	-	-	-
STAVINOX TINBRO Low Sn	93.8	-	-	Sn 6 P 0.2	1040	-	Cu201	-	-	L-CuSn6
STAVINOX TINBRO Hi Sn	87.8	-	-	Sn 12 P 0.2	990	-	Cu202	-	-	L-CuSn12
STAVINOX CUPRO	100	-	-	-	1085	SC1 BACu1	Cu102	-	BCu-1	L-Cu
STAVINOX 680	58	39.4	0.1	Ni 0.6 Mn 0.3 Sn 1.00 Fe 0.6	882	-	-	-	RBCuZn-B	-
STAVINOX LOW FUMING BRONZE	59	39.5	0.1	Sn 1 Mn 0.4	870	-	-	CZ 7A	RBCuZn-C	L-CuZn39Sn
STAVINOX BRASS 5545	55	45	-	-	890	-	-	-	-	L-CuZn46
STAVINOX 470	59	39.7	0.2	Sn 1	890	-	-	-	RBCuZn-A	-

General composition

Share of each element in every grade, normalised to 100%. Hover or tap a bar for the exact value.

Solidus – liquidus range

Melting range of each grade in °C, with °F on the right-hand axis. Grades without a published range are not plotted.

Key Features and Benefits of STAVINOX Copper and Brass Brazing Alloys

Stanvac International offers a comprehensive range of Copper, Brass, and Bronze Brazing Alloys in forms of wire on spool, coils, cut rods, and rings all developed to deliver reliable joint performance across varied brazing conditions.

Key features and benefits include:

Wide Application Compatibility: Suitable for brazing copper, copper alloys, mild steel, stainless steel, cast iron, and cemented carbide.
Multiple Brazing Processes Supported: Designed for use in flame brazing, induction brazing, resistance brazing, and furnace brazing operations.
Cost-Effective Alternative To Silver Alloys: These alloys provide strong joints at a lower cost compared to silver brazing alloys, making them ideal for large-scale production.
High Joint Strength: Produces durable joints with good mechanical strength for structural and functional applications.
Good Corrosion Resistance: Performs well in environments where resistance to oxidation and corrosion is important.
Excellent Thermal and Electrical Conductivity: Suitable for applications requiring effective heat and current transfer.
Flexible Product Forms: Available in rods, wires, preforms, and flux-coated rods to suit different joint designs and operator preferences.

These advantages make STAVINOX Brass Brazing Alloys and copper-based fillers reliable choices for industrial brazing applications.

Specifications of Copper and Brass Brazing Alloys

The table below provides an overview of the available STAVINOX alloy grades, including their compositions and operating characteristics.

Product Name	Cu Percent	Zn Percent	Si Percent	Others	Operating Temperature °C	IS 2927	DIN EN 1044	BS 1845	AWS A5.8	DIN 8513
STAVINOX SIBRO	60	39.6	0.4	-	880	Sc6	BACuZn4	Cu301	CZ6	L CuZn40
STAVINOX MANBRO	60	39.6	0.2	Mn 0.2	910	SC8	-	-	-	-
STAVINOX TINBRO Low Sn	93.8	-	-	Sn 6, P 0.2	1040	-	Cu201	-	-	L CuSn6
STAVINOX TINBRO Hi Sn	87.8	-	-	Sn 12, P 0.2	990	-	Cu202	-	-	L CuSn12
STAVINOX CUPRO	100	-	-	-	1085	SC1	BACu1	Cu102	-	L Cu
STAVINOX 680	58	39.4	0.1	Ni 0.6, Mn 0.3, Sn 1.00, Fe 0.6	882	-	-	-	RBCuZn B	-
STAVINOX LOW FUMING BRONZE	59	39.5	0.1	Sn 1, Mn 0.4	870	-	-	CZ 7A	RBCuZn C	L CuZn39Sn
STAVINOX BRASS 5545	55	45	-	-	890	-	-	-	-	L CuZn46
STAVINOX 470	59	39.7	0.2	Sn 1	890	-	-	-	RBCuZn A	-

This range allows users to select the right copper brazing rods or brass-based filler according to base metal and operating temperature.

Properties of Copper, Brass and Bronze Brazing Alloys

STAVINOX Copper, Brass and Bronze Brazing Alloys fillers are engineered to deliver consistent performance.

Property	Description
Joint Strength	Produces strong and durable brazed joints
Flow Characteristics	Good fluidity ensures proper joint filling
Corrosion Resistance	Suitable for industrial and outdoor environments
Thermal Conductivity	Supports effective heat transfer
Electrical Conductivity	Suitable for electrical applications
Temperature Stability	Performs reliably within specified operating ranges
Material Versatility	Works with ferrous and non-ferrous base metals

These properties support dependable brazing results across a wide range of applications.

Applications of Copper, Brass and Bronze Brazing Alloys

STAVINOX Brass Brazing Alloys and copper-based fillers are commonly used in:

Joining steel to copper or brass
Furnace brazing of copper assemblies
Electrical and thermal equipment manufacturing
Repair and maintenance of industrial parts
Brazing of cemented and carbide tip tools

Clean base metal surfaces and use appropriate flux to achieve strong, defect-free joints.

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Copper, Brass and Bronze Brazing Alloys