What metals can be used in lost wax casting?

KEMING’s lost wax casting service supports a wide range of metals and alloys—including carbon steel, stainless steel, aluminum, nickel-based alloys, and copper-based alloys—each offering distinct properties that influence product quality and application suitability. These materials vary in corrosion resistance, wear resistance, tensile strength, hardness, machinability, and cost, allowing for tailored solutions based on specific performance needs. Additionally, studies indicate that electric arc casting yields stronger products with better microstructure compared to torch casting.

Principales conclusiones

• Lost wax casting can use many metals. Each metal is different. These differences change how the final product turns out.
• Picking the right metal is very important. It changes how strong and tough the part is. It also changes what the part can be used for. KEMING’s experts can help you pick the best metal.
• Precious metals are great for jewelry and art. They show small details and can be polished well. Base metals like bronze and brass are strong. They do not rust easily. This makes them good for factories and machines.
• Industrial metals like stainless steel and alloy steel are very strong. They do not rust much. They are good for machines and car parts.
• KEMING has more than 100 kinds of metals and alloys for casting. This means every project can get the best material for its needs.

Metals Used in Lost Wax Casting

KEMING can use many metals and alloys for lost wax casting. This process helps make strong and detailed parts for different industries. The main groups are precious metals, base metals, industrial metals, and other special alloys. KEMING can cast more than 100 types of metal, including common and special alloys. This means every project gets the best material for its job.

Precious Metals: Gold, Silver, Platinum

People use precious metals like gold, silver, and platinum for jewelry, art, and expensive parts. These metals have special features that make them great for lost wax casting.

Propiedad	Descripción
Color	Bright white, reflective
Hardness (Mohs)	~2.7-3.0
Melting Point	893 °C (Sterling Silver)
Resistencia a la tracción	170 – 250 MPa (annealed to hardened)
Density	~10.3 g/cm³

• Gold shows fine details and has a smooth surface. It is simple to polish and plate, so people like it for fancy items.
• Silver is bright and conducts heat well. It cools fast, so vacuum or centrifugal casting works best for small details.
• Platinum is strong and melts at a high temperature. It is good for tough jobs.

Precious metals work well for small and medium batches. They keep tiny details and can get different finishes, like rhodium plating.

Base Metals: Bronze, Brass, Copper

Base metals such as bronze, brass, and copper are important in lost wax casting. These metals are strong, resist rust, and show small details well.

Material	Tensile Strength (MPa)	Hardness (Mohs)	Punto de fusión (°C)	Resistencia a la corrosión
Bronce	300-550	~3.0-4.0	950–1050	Excellent, even in marine environments
Phosphor Bronze	300-400	N/A	N/A	Good resistance to most acids and alkalis
Silicon Bronze	350-450	N/A	N/A	Excellent, especially in marine environments

• Bronze keeps small details and gets a nice color over time. People use it for statues and boat parts.
• Brass can make complex shapes with a smooth surface. It is used in plumbing and electric parts.
• Copper conducts electricity and heat well. It is also used for both looks and function.

• Manganese bronze is very strong and used for heavy gears and boat parts.
• Phosphor bronze does not wear out easily, so it is good for springs and electric connectors.
• Silicon bronze is great for boat parts and pumps because it does not rust easily.

Bronze and brass alloys are used in many fields. Bronze is picked for boats because it does not rust. Brass is chosen for easy cutting and good heat flow.

Industrial Metals: Stainless Steel, Alloy Steel, Iron

Industrial metals are used a lot in lost wax casting. Stainless steel, alloy steel, and iron are strong and last long, even in tough places.

Material	Ventajas
Acero inoxidable	High strength, corrosion resistance, attractive finish; suitable for robotics, medical equipment, and food processing.
Acero al carbono	Superior wear resistance and strength at a lower cost; ideal for structural parts and machinery in harsh conditions.

Grade Type	Características	Aplicaciones
Duplex	Combines austenitic and ferritic properties for high strength and corrosion resistance.	Used in marine components and industrial automation.
Martensitic	Known for high strength and hardness, suitable for heat treatment.	Common in medical equipment and food processing.
Austenitic	Offers excellent corrosion resistance and good formability.	Preferred for robotic systems and clean environments.

• Stainless steel has chromium, nickel, and molybdenum. These make it better against heat and rust.
• Carbon steel is strong and not expensive. It is used for gears and valves.
• Alloy steel is tougher and used in cars and buildings.

KEMING can cast many iron-based metals, like stainless steel, carbon steel, and alloy steels. These metals are needed for machines, building parts, and tools that must be strong and last long.

Other Alloys: Aluminum, Nickel, Zinc

Special alloys like aluminum, nickel, and zinc give more options for lost wax casting. These metals are picked for their special features and use in advanced jobs.

Área de aplicación	Características principales
Aeroespacial	High-performance alloys for turbine blades
Médico	Precision components like implants
Fundición para automoción	Specialty parts requiring complex geometries
Art and Jewelry	Fine surface finishes and intricate designs
Energía	Components that require tight dimensional control

• Aluminum alloys are light and easy to cut. They are used in cars and planes.
• Nickel based alloy is strong and does not rust, so it is good for hard jobs.
• Zinc alloys can make small, detailed parts that fit very well.

KEMING’s lost wax casting can use almost any alloy, both iron-based and not. This means every customer gets the best choice for their needs.

The lost-wax casting process and KEMING’s skill give great results for all metals and alloys.

Properties of Lost-Wax Casting Metals

Picking the right metal is very important. Each metal has special features. These features change how well the casting works. They also change how strong the finished part is. KEMING uses careful checks and new technology. This makes sure every casting is high quality.

Resistencia y durabilidad

Strength and durability show if a metal part will last. These features tell how much force a part can take. They also show if it will break or wear out. KEMING checks every casting for these features. This helps parts work well in hard jobs like cars, planes, and machines.

Métrica	Descripción
Resistencia a la tracción	The ability to resist being pulled apart under load
Resistencia al impacto	Capacity to absorb energy and resist fracture from shocks
Fatigue Life	Endurance under repeated cyclic loading over time

KEMING uses top materials and checks every product. Their castings fight abrasion, heat, and wear. This makes them good for many jobs.

Resistencia a la corrosión

Corrosion resistance means a metal can stand up to water and chemicals. It also means it does not rust or break down. This is important for parts in boats, factories, or medical tools. KEMING tests metals for corrosion resistance. This helps parts last longer.

• Nickel-based alloys fight heat, oxidation, and corrosion. They are used in power plants and chemical factories.
• Cobalt alloys handle high heat. They work in jet engines and turbines.
• Copper-based alloys like bronze and brass fight rust and conduct heat. They are used in marine parts and bearings.

Melting Point and Fluidity

Melting point and fluidity help metals fill the mold. Metals with the right melting point flow better. They fill small spaces and make detailed parts. KEMING controls melting temperatures. This stops defects and gives smooth surfaces.

Alloy category	Representative alloys	Approx. melt / pour range (°C)	Practical notes
Precious metals	Gold, Silver, Platinum	962–1,768	Used for jewelry; platinum needs very high temperatures.
Bronze / Copper alloys	Bronze, Brass, Copper alloys	900–1,080	Good fluidity; watch for oxide formation.
Aleaciones de aluminio	A356, AlSi7, AlSi10	610–720	Rapid solidification; needs special handling.
Steels & stainless	400/300 series, tool steels	1,420–1,500	Needs strong molds and careful temperature control.

• Higher melting temperatures help metals fill complex molds.
• Lower melting points may cause problems and defects.
• Careful control of melting and pouring helps KEMING make good castings.

KEMING picks and tests materials carefully. This makes sure every lost wax casting fits the needs of each industry.

Applications Across Industries of Lost Wax Casting

KEMING helps many industries with lost wax casting. Their team changes each project to fit what is needed. They use new methods and skilled workers to make metal parts for many jobs. This process makes detailed parts that are very accurate and do not waste much material.

Automoción y aeroespacial

Automotive and aerospace companies use lost wax casting for strong, light parts. These jobs need metals that can take stress, heat, and rust. The table below shows how these fields use cast metals:

Industria	Specific Uses
Aeroespacial	Turbine blades, engine components, structural parts, fuel systems
Automoción	Transmission components, engine parts, exhaust system components

Parts must be strong, resist rust, and be very exact. Aluminum castings help make cars and planes lighter. Stainless steel parts, like fuel doors, last longer and work well. Lost-wax casting lets makers create thin and tricky shapes. This saves weight but keeps the part strong.

Machinery and Industrial Parts

Machinery and industrial jobs use lost wax casting for tough and exact parts. These parts often carry heavy loads and must last a long time. The table below shows common uses:

Área de aplicación	Materiales utilizados	Ventajas
Automotive Sector	Aluminum, Stainless Steel	Precision, durability, excellent lubrication
Tool Industry	Aleaciones de acero	High tensile strength, shock resistance, minimal post-casting work

Lost wax casting has many good points:

• Makes thin and tricky shapes.
• Cuts down on extra cutting work.
• Good for making many parts at a fair price.

These things make it great for gears, valves, and other machine parts.

Art, Jewelry, and Medical Devices

Artists, jewelers, and medical makers use lost wax casting for its detail and flexibility. The process helps make custom jewelry and medical implants with tricky shapes. The table below shows metals used in these jobs:

Industria	Metals Used
Jewelry	Gold, Silver
Dentistry	Gold
Art	Gold, Silver, Brass, Bronze

Common metals are brass, bronze, copper, gold, platinum, and silver. Jewelry makers like this method for making fancy and hollow designs. Medical device companies use it for implants that need exact shapes and smooth surfaces. Lost wax casting and 3D printing let people make special parts when needed and change them easily.

KEMING’s lost wax casting service helps many industries. They pick the right metal for each job to get the best results.

Metal Selection in Lost Wax Casting

Process Considerations

Picking the right metal for lost wax casting is important. Many things affect this choice. Each metal acts in its own way during casting. Stainless steel needs high heat to melt and does not rust easily. Aluminum melts at lower heat and fills molds well. Bronze is strong and melts at a medium temperature. This makes bronze good for art and machines.

Propiedad	Acero inoxidable	Aluminio	Bronce
Resistencia a la corrosión	Excelente	Moderado	Bien
Fuerza	Alta	Moderado	Alta
Melting Point	Alta	Bajo	Moderado
Fluidez	Moderado	Alta	Moderado
Índice de contracción	Bajo	Moderado	Bajo

The casting process also depends on what the part must do, where it will be used, and how much it costs. Aluminum alloys cost less to melt because they need less heat. Stainless steel costs more to melt since it needs more heat. Nickel-based alloys are very strong but cost more money. The table below shows how different metals change the casting process and price:

Tipo de metal	Propiedades	Impacto en los costes
Aleaciones de aluminio	Lightweight, strong	Lower melting costs
Acero inoxidable	Corrosion resistant	Higher melting costs
Acero al carbono	Good strength	Moderate melting costs
Aleaciones de cobre	Excellent conductivity	Variable melting costs
Aleaciones a base de níquel	High strength, corrosion resistance	Higher overall costs

Choosing the best casting method helps make sure the part works well. KEMING’s team looks at each project and picks the best metal for the job.

Surface Treatments and Finishing

After casting, surface treatments make metal parts look better and work better. The finish you get depends on the casting method. Silica-sol casting gives a smooth finish. Water-glass casting makes a rougher finish. Other steps like machining, polishing, and grinding help get the finish you want.

Método	Descripción
Granallado	Removes surface debris and smooths the finish.
Mecanizado y rectificado	Refines surfaces for a precise fit and shine.

KEMING does all steps for lost-wax casting. They use CNC machines, machine vision, and ultrasonic sensors to check for problems. Skilled workers and new tools make sure each part is smooth and strong. KEMING follows world quality rules and has CE and ISO9001 certificates. This focus on quality gives customers strong and trusted metal parts for every use.

Tip: The right surface treatment can help a metal part last longer and look better.

Lost wax casting uses many metals, each with unique strengths. Stainless steel, bronze, aluminum, and precious metals fit different jobs. Choosing the right metal helps parts last longer and work better. KEMING’s experts guide customers to the best choice for lost-wax casting. They suggest looking at both technical needs and cost.

• Ask KEMING for advice on metal selection.
• Match the metal to the job for best results.

PREGUNTAS FRECUENTES

What metals work best for jewelry lost wax casting?

Gold, silver, and platinum work best for jewelry. These metals show fine details and polish well. Jewelers choose them for rings, necklaces, and art pieces.

Can KEMING cast custom alloys for special projects?

Yes. KEMING can cast over 100 metal materials, including custom alloys. Their team helps customers pick the right alloy for each project.

How does metal choice affect casting cost?

Aluminum costs less to melt than stainless steel. Nickel-based alloys cost more. The metal’s melting point and price both affect the final cost.

What surface finishes can KEMING provide?

KEMING offers many finishes. These include shot blasting, machining, grinding, and powder coating. Each finish improves the look and performance of the part.