Sheet metal materials: Tips on materials in sheet metal processing
Choosing the right sheet metal materials determines the quality, durability and cost-effectiveness of your sheet metal products. Our guide shows which metals are suitable for which projects. It highlights current trends such as sustainability and high-tech materials and provides practical tips for your material decisions.
Introduction
Every successful sheet metal part starts with the right material. It is the cornerstone for the functionality and durability of your products. But it is also crucial for its manufacturability and cost-effectiveness. A well-informed choice saves time and money and avoids problems later on.
Whether you are an engineer, designer or purchaser - this guide will help you. It will help you to make the best choice for your sheet metal materials.
Material overview in detail: Which metal suits your project?
To make your decision easier, we will introduce you to the most common sheet metal materials. Find out more about their specific properties, typical applications and how they behave in sheet metal processing.
Steel: Sheet metal processing made easy
Steel is a versatile metal that is characterized by high strength, good weldability and excellent robustness. It is ideal for use in metal construction, mechanical engineering or vehicle construction.
Thanks to special protective coatings, such as galvanizing or powder coating, sheet steel also offers reliable corrosion protection. As a result, the material remains durable and dimensionally stable even under heavy use and weathering. Steel can be precisely cut, bent and shaped.
Steel is therefore a popular material in sheet metal processing. It is used for stable, resilient and durable components. There are many types of steel, which differ depending on their composition, properties and area of application. For example, as alloyed, unalloyed steel, but also as tool steel or galvanized steel.
Typical applications: Enclosures, frames, carriers, switch cabinets, vehicle construction (non-visible parts).
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Suitability for machining processes: Excellent for laser cutting, punching, bending and all common welding processes.
Frequently requested:
- S235JR (1.0037): The standard structural steel, versatile and cost-effective. Ideal for general constructions and components where corrosion protection can be provided by painting or galvanizing.
- S355JR (1.0045): A higher-strength structural steel that can bear more load with the same dimensions. Perfect for applications that require greater rigidity or load-bearing capacity.
Stainless steel: sheet metal for durable applications
Stainless steel impresses with its exceptional strength, high corrosion resistance and elegant appearance. The stainless material is ideal for applications where hygiene, weather resistance and durability are important. It is frequently used in mechanical engineering, architecture and the food industry, for example.
Stainless steel sheets can be precisely cut, edged, shaped and welded. The natural passive layer provides lasting protection against rust - ideal for projects where quality and stability count.
Typical applications:
Food industry, medical technology, chemical plants, architecture, kitchen equipment, maritime applications.
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Suitability for machining processes: Well suited for laser cutting, punching, bending and welding.
Frequently requested:
- AISI 304 (1.4301): The most commonly used stainless steel. Offers good general corrosion resistance and is easy to weld and form. Ideal for indoor and outdoor applications without extreme environmental conditions.
- AISI 316 (1.4401): With the addition of molybdenum, this stainless steel offers significantly higher corrosion resistance, especially against chlorides (e.g. salt water) and many acids. The first choice for maritime applications, the chemical and food industries.
Aluminum: Sheet metal processing for high conductivity
Aluminum alloys impresses with its low weight, high stability and excellent corrosion resistance.
Thanks to the natural oxide layer, aluminum sheets are rust-free and ideal for outdoor use.
Aluminum sheets can be easily cut, bent or welded and offer high dimensional stability. Aluminum sheets are used in vehicle construction, mechanical engineering, facades and interior fittings. They are durable, easy to process and combine strength with optimum protection from the elements.
Typical applications:
Aerospace, vehicle construction (lightweight construction), electronic housings, heat sinks, facade cladding, consumer goods.
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Suitability for machining processes: Very suitable for laser cutting (with special settings), punching and bending.
Frequently requested:
- AlMg3 (EN AW-5754): A highly weldable and formable alloy with good corrosion resistance. Ideal for general vehicle and mechanical engineering as well as maritime applications.
- AlCuMg2 (EN AW-2024): An age-hardenable alloy with very high strength. Often used in aircraft construction, but is more difficult to weld and less corrosion-resistant than 5xxx alloys.
Copper & copper alloys: Excellent conductivity & optics for sheet metal
Copper sheets are very popular in sheet metal processing. This is because copper has the highest electrical and thermal conductivity of all common metals. Due to its ductility and good formability, copper sheets are easy to process and form.
Copper also impresses with its corrosion resistance, which makes it ideal for long-lasting applications. Over time, however, a characteristic patina forms. This changes the appearance of the material, but also enhances its protective function. Copper sheet combines functionality and aesthetics.
Typical applications:
- Electrical engineering (busbars, contacts), electronics, heat exchangers, decorative elements, architecture.
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Suitability for machining processes: Good for laser cutting (demanding due to high reflection), punching and bending.
Frequently requested:
- E-Cu57 (CW004A): Purest copper form for maximum conductivity.
- Brass/bronze: Copper alloys that improve strength and specific properties.
What are the trends for sheet metal materials in 2026?
There are currently many changes in sheet metal processing. This already began in 2025 and will continue in 2026. Today, there are new technologies and more important rules for environmental protection.
It is therefore particularly important to choose the right sheet metal material. The material should help to save energy, last a long time and protect the environment.
In 2026, there are three main trends in the choice of materials. These developments now determine the entire market:
- Firstly, companies are using more and more modern and improved materials.
- Secondly, they are paying more attention to saving raw materials and working sustainably.
- Thirdly, they now select the material to suit the task in hand.
1. extended use of advanced materials
In addition to classic metal alloys, from 2026, more and more New material concepts that fit well into modern manufacturing processes. These include above all Carbon fiber reinforced plastics (CFRP) and Material combinations of metal and plastic. These materials are used where low weight, High load capacity or Additional functions are particularly important.
CFRP complements sheet metal processing, especially when metals reach their limits. In lightweight construction, for example, CFRP acts as a link in highly stressed components or structures.
At the same time, materials that can be can be processed well with modern production methods. This includes combined processes from additive and machining manufacturing as well as automated further processing steps. Material selection is therefore no longer considered individually, but always in conjunction with Production technology, quantities and costs.
This development ties in with existing material trends. At the same time However, the range has been specifically expanded to include materials, that are suitable for efficient and future-proof production solutions.
2. sustainability and environmentally friendly choice of materials
In 2026, sustainability will no longer be an optional criterion, but an integral part of material procurement in sheet metal processing. This can be seen at trade events such as EuroBLECH 2026, where sustainable materials and energy-efficient production take center stage. This is because companies are increasingly focusing on resource-saving and environmentally friendly materials. The aim is to reduce CO₂ emissions and promote the circular economy. Central developments are:
- Increased use of recycled materialsespecially with steel and aluminum. Recycled aluminum and steel not only reduce waste, but also conserve resources and significantly reduce the ecological footprint.
- Stainless steel as a sustainable optionStainless steel is considered a particularly environmentally friendly material due to its durability, corrosion resistance and high recycling rate.
- Optimized use of materials thanks to intelligent software solutionsthat minimize waste during cutting and machining processes. Less material waste means less raw material consumption and lower costs.
- Energy-efficient manufacturing processes also help to further improve the carbon footprint of sheet metal processing.
3. application-related material selection
The targeted choice of materials depending on the intended use will become even more important in 2025. Companies are placing greater emphasis on selecting materials that are precisely tailored to the specific requirements of the end product. Important factors here are:
- Strength and hardness for load-bearing or highly stressed constructions.
Corrosion resistance for use in damp, aggressive or maritime environments. - Low weightparticularly important for aerospace, vehicle construction and lightweight construction.
- Good machinabilityto ensure efficient production processes.
- Optics and surface finishespecially for visible components such as facades or design elements.
- Special propertiesfor example, the highest electrical or thermal conductivity of copper, which is the preferred material in electrical and energy technology.
Our tips: Find the perfect material for your sheet metal processing
Are you unsure which material is right for you? Use our simple guide to make a preliminary selection and tailor the choice of material to your specific needs.
- What is the main requirement for your component?
- [High strength / rigidity]
- [Low weight]
- [Maximum corrosion resistance]
- [Best electrical/thermal conductivity]
- [Lowest costs]
- In which environment is the component used?
- [Interior, dry]
- [Outdoor area, normal weather conditions]
- [Humidity / condensation]
- [Salt water / chemicals]
- [High temperatures]
- Which processing methods are primary for you?
- [Laser cutting / punching]
- [Bending / Forming]
- [Welding]
- [Surface finishing (lacquer, powder, etc.)
Based on your answers, we can give you initial recommendations for suitable materials and start the discussion about the optimum solution.
FAQ
What is sheet metal processing?
Sheet metal working is a versatile trade in which metal sheets are cut, bent, formed and joined together to create functional products. Both thin (from 0.006 inch) and thick (up to 0.25 inch) sheets can be processed.
Techniques include cutting (e.g. lasering), rolling, punching, hemming, welding or riveting. Common materials are aluminum alloys, stainless steels and various types of steel, but also copper and brass.
Applications range from the industrial to the hobby sector, e.g. for car body parts or household appliances. It is characterized by accuracy, efficiency and versatility.
What phases of sheet metal processing are there?
Sheet metal working, a versatile process for transforming metal sheets into functional parts, typically involves five main stages.
- Preparation phase: Here, the metal surface is cleaned and freed from impurities.
- Design phase: Detailed drawings or 3D models of the end product are created manually or using CAD software.
- Production phase: The sheet metal is cut, bent, formed and welded to obtain the desired shape
- Final phase: Surface treatments such as powder coating or polishing are carried out to provide functional and protective properties.
- Assembly phase: The manufactured parts are assembled using techniques such as gluing, welding or mechanical fastening. This process is characterized by its accuracy, efficiency and versatility.
Which techniques are used in sheet metal processing?
Sheet metal processing uses a variety of techniques to shape sheet metal. The main processes include cutting, often using laser cutting, plasma cutting, shearing or sawing.
Sheet metal is also bent and formed into the desired shape using folding benches or universal machines. Punching is used to create holes or patterns. Welding or riveting are used for permanent connections.
Other techniques include rolling, hemming (hemming) and rolling (curling). Finally, the edges are often finished with files or grinding machines.
Which sheet material is the cheapest?
As a rule, untreated carbon steel (e.g. S235JR) is the most cost-effective material. However, the total costs can change if expensive surface treatment or complex processing steps are required.
Which material is best for welding?
Carbon steels are considered to be very easy to weld. Many types of stainless steel and aluminum alloys are also weldable, but often require specific welding processes and specialist knowledge. This helps to avoid distortion or loss of quality.
How do I choose the right material for outdoor applications?
Corrosion resistance is crucial for outdoor applications. Stainless steel (especially AISI 316 for harsh conditions) and aluminum (due to its natural oxide layer) are the first choice here. Carbon steel requires a high-quality coating or galvanizing.
Can you help me with material selection and construction?
Yes, absolutely! Our experienced engineers and production experts will be happy to advise you on the choice of materials. We optimize your design for the best possible manufacturability and cost efficiency.
