ThePipingMart Blog Grades 673 Bronze (C67300) – Composition, Properties, and Uses

673 Bronze (C67300) – Composition, Properties, and Uses

673 Bronze

If you are in the engineering or manufacturing industries, you have probably heard of 673 Bronze. It is a highly versatile alloy that has been used for centuries in many different applications, from tools and weapons to decorative sculptures. But what exactly is Bronze 673? What makes it so special? Let’s take a look at some of the properties, compositions, and uses of this incredible alloy.

C67300 Chemical Composition

673 Bronze is an alloy consisting primarily of copper and tin, with trace amounts of lead, zinc, and other metals. This combination gives Bronze 673 its unique properties—it is strong enough to be used in tools and weapons yet malleable enough to be used in creating sculptures. Although Bronze 673 was developed centuries ago, modern alloys often include additional elements such as nickel and aluminum to improve its performance even further.

Cu% Pb% Sn% Zn% Fe% Ni%1 Al% Mn% Si%
0.30 Rem. 0.50 0.25 0.25 2.00-

673 Bronze Chemical Properties

The chemical structure of Bronze 673 makes it incredibly resistant to corrosion due to its high copper content. The combination of tin and lead also makes it highly resistant to oxidation. In addition, C67300 has a relatively low melting point compared with other alloys, which makes it easy to work with during machining processes.

C67300 Mechanical Properties

The mechanical properties of Bronze 673 make it ideal for a wide range of applications. It has excellent strength-to-weight ratio, which means that it is lightweight yet strong enough for tools and weapons. In addition, it has good tensile strength, which means that it can withstand high levels of stress without becoming damaged or deformed. Finally, its high ductility means that it can be bent into intricate shapes without breaking or cracking.

Temper Section
Temp Tensile
(0.5% ext.
under load)
El Rockwell
in. % F ksi ksi ksi ksi % B C F 30T 500 500 3000 ksi
mm. C MPa MPa MPa MPa MPa

C67300 Physical Properties

Bronze 673 is a sophisticated alloy used in many industries due to its impressive physical properties. This alloy contains nickel, copper, and zinc, which create a strong and versatile metal that can be worked into many shapes. Its strength lies in its flexibility – it can be heated and curved, as well as being corrosion-resistant even in extreme climates and temperatures. Despite its impressive durability, it maintains its weight and surface finish, making it an ideal choice for delicate sculptures and intricate components. Due to these powerful physical properties of Bronze 673, many businesses benefit from utilizing this unique alloy in projects ranging from intricate jewelry pieces to highly complex engineering fabrications.

US Customary Metric
Melting Point – Liquidus 1605 °F 874 °C
Density 0.3 lb/in3 at 68 °F 8.3 gm/cm3 at 20 °C
Specific Gravity 8.3 8.3
Electrical Conductivity 22% IACS at 68 °F 0.13 MegaSiemens/cm at 20 °C
Thermal Conductivity 55 Btu/sq ft/ft hr/°F at 68 °F 95 W/m at 20 °C
Coefficient of Thermal Expansion 68-572 11 · 10-6 per °F (68-572 °F) 19 · 10-6 per °C (20-300 °C)
Modulus of Elasticity in Tension 17000 ksi 117212 MPa

C67300 Equivalent

C67300 J461

Bronze 673 Uses

Due to its wide range of useful properties, Bronze 673 is used in a variety of industries, including construction, engineering, plumbing, automotive repair, jewelry making, sculpture making, and more! Its corrosion resistance makes it well suited for use in areas exposed to harsh weather conditions, while its heat resistance makes it ideal for use around high temperatures, such as engines or furnaces. Its malleability also makes it great for creating intricate sculptures or jewelry pieces, while its strength allows it to create durable tools and weapons.

Bronze 673 Corrosion Resistance

Bronze 673 is an alloy with remarkable corrosion resistance properties. It has been widely used for a variety of applications that require long-lasting performance in harsh environments, as it has been demonstrated to withstand exposure to high humidity, extreme temperatures, chemicals, and other corrosive substances better than many other metals. This makes it ideal for water supply pipes, offshore structures, and ships, as well as several other applications where oxidation and wear resistance are essential. Moreover, Bronze 673 also boasts strong physical strength, good formability, and machinability characteristics when compared to other alloys of its kind. These features make it one of the most popular materials used in a variety of industries today.

Bronze 673 Heat Resistance

Bronze 673 is made of a special bronze alloy that makes it incredibly heat resistant. This material can withstand extended periods of heat and still maintain its superior strength, even in extreme temperatures. Its strength remains unaffected after being subject to high temperatures several times, ensuring it won’t become brittle or hard over time. Its flexibility allows it to be used in countless ways, from creating pistons to constructing components for harsh environments. Thanks to its heat-resistant properties, Bronze 673 is an ideal choice for products needing superior performance at higher temperatures over the long term.

Bronze 673 Heat Treatment

Heat treating bronze 673 can be an intricate process if not done properly. It requires the type of environment and specifically targeted temperatures to achieve optimal results. Mainly, brazing and annealing are common practices used when heat treating bronze 673. The high ductility of this metal, combined with its low-temperature tolerance, makes it a popular choice in many industries, such as construction and engineering. To ensure that the heat treatment of bronze 673 is successful, skilled staff must be employed to monitor the process diligently from start to end. It is vital that safety protocols are observed, as any mishandling could potentially lead to fire or even explosions in some cases. Ultimately, correctly implemented heat treatment for this metal yields resilient products for its many uses.

Bronze 673 Machining

Many businesses require precise machining of bronze 673, but because of its complex properties, it can be difficult to the machine correctly. Despite these difficulties, experienced machinists are often able to produce high-quality results with this alloy due to their proficiency in understanding the intricacies of bronze 673 and how best to work with it. With the help of modern technology, such as Computer Numerical Control machinery and CAD/CAM systems, many machinists are able to produce exact replicas or custom designs with impressive accuracy and speed. By adhering to a strict set of practices that considers the specific physical characteristics of bronze 673, precision machines have been able to consistently reach astonishing levels of quality when machining with bronze 673.

Bronze 673 Welding

Bronze 673 welding is a specialized form of welding that requires specific skills and expertise. It has been around for almost a century, but only recently has its popularity surged due to the unique properties that bronze 673 has to offer. Despite being incredibly durable and resistant to most forms of corrosion, it is lightweight and costs less than other materials. This makes it an attractive option to those looking for reliable, long-lasting construction projects while not breaking the budget. On top of all this, bronze 673 welding also creates strong joints that are far easier to repair in the event if any damage occurs. It’s no surprise why bronze 673 weldings is becoming increasingly popular amongst professionals and home contractors alike.


Bronze 673 is an incredibly versatile alloy with a wide range of uses across many different industries thanks to its unique composition, which provides excellent corrosion resistance as well as heat resistance and malleability. Its mechanical properties make it ideal for use in both small-scale projects such as sculpture making as well as large-scale projects such as tooling or metalworking applications where strength is essential, but weight must be kept low at the same time. Whether you are looking for an alloy for small-scale craftsmanship or large-scale industrial needs – look no further than bronze 673!

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