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Stainless Steel
Advanced Manufacturing

Advanced manufacturing Technology

We provide advanced manufacturing services in technologies like 3d printing, CNC machining, fabrication, extrusion, etc.

Experienced Engineers

Team of expert engineers with more than 15 years of experience.

On Time Project Delivery

on time project delivery

With locations in all over Australia we can assure lightning fast delivery.

Australia Wide Expandation

Australia wide expandation

Zeal 3D is present in
Victoria, NSW, Western Australia,
Queensland and Tasmania.

ISO 9001 : 2015

ISO 9001-2015 certified

Committed to consistently provide products and services that meet customer and regulatory requirements and to demonstrate continuous improvement.


To accommodate the broad spectrum of applications, stainless steel is available in more than 100 distinct grades. In order to impart qualities like strength, ductility, heat resistance, and flexibility, alloys like nickel, silicon, nitrogen, manganese, and carbon are added to create the various grades and varieties. The grades of stainless steel primarily fall under the austenitic, ferritic, martensitic, precipitation hardening, and duplex types, which are primarily distinguished by their crystalline structure.

Stainless steel grades for 3D Printing:

  • Type 316L
  • Type 420

Stainless steel grades for CNC Machining, Fabrication and Extrusion :

Austenitic stainless steels grades: The 300 series and 200 series are the two primary subclasses of austenitic stainless steels.

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1. 200 series Stainless Steel

  • Type 201
  • Type 202

2. 300 series Stainless Steel

  • Type 301
  • Type 303
  • Type 304 / 304L
  • Type 316
  • Type 317
  • Type 321
  • Type 347
  • Type 348

Ferritic stainless steels grades: Ferritic stainless steels grades fall under 400 series. Some of the ferritic stainless steel grades are -

  • Type 409
  • Type 430
  • Type 430LI
  • Type 434
  • Type 439
  • Type 442
  • Type 444
  • Type 446

Martensitic stainless steels grades: Martensitic stainless steels grades also fall under 400 series. Some of the Martensitic stainless steel grades are

  • Type 410
  • Type 414
  • Type 416
  • Type 431
  • Type 440

Duplex stainless steel grades: Duplex stainless steel grades are designated in the 2000 Grade series. Some of the duplex stainless steel grades are

  • Duplex 2205
  • Duplex 2304
  • Duplex 2507

Precipitation hardened stainless steels: Precipitation hardened stainless steels are regarded for their exceptional strength-to-weight ratio.Some of the Precipitation hardened stainless steels are

  • 13-8 Stainless Steel
  • 15-5 Stainless Steel
  • 17-4 / 17-4PH Stainless Steel

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Stainless Steel Grades
Applications of Stainless Steel


Medical Industry: Since it can be easily sanitised and is corrosion-resistant, stainless steel is perfect for sanitary environments. It is used to make dental, surgical and medical implant instruments, operating tables, kidney dishes, and other medical devices like cannulas, steam sterilisers, and MRI scanners.

Automotive Industry: Stainless steel is now being used more frequently in the automobile sector. Traditionally utilised in trim, grills, and exhaust systems for automobiles, stainless steel is now preferred by metal manufacturing sectors for structural components as well as due to new emission reduction rules and environmental concerns.

Defence Industry: The use of stainless steel has been highly in demand for the defence industry. Since it has lightweight and exceptional tensile strength capabilities, stainless steel is used in artillery weapons, riveting in tanks, and missiles.

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Aerospace Industry: Stainless steel is a very adaptable material that may be used for any metallic component of an aircraft in the aerospace sector. The aerospace industry has become more and more dependent on stainless steel for manufacturing aerospace components that require higher performance. Almost every significant component of an aeroplane uses stainless steel in aerospace applications. Manufacturers of various aircraft, including jets, aeroplanes, helicopters, gliders, and similar craft, frequently use stainless steel components to build completely functional aircraft systems.

Nuclear Plants: The nuclear industry needs equipment that has been thoughtfully constructed to withstand adverse conditions, which is now taken care of by stainless steel. Because of its many beneficial qualities, stainless steel is perfect for use in the nuclear field, which demands accurate procedures and dependable tools. In addition, stainless steel is used extensively in a typical nuclear power plant to ensure efficient operation, and it can be found in some capacity in almost every system component, whether large or tiny.

Mining Industry: Since stainless steel has several properties that make it appropriate for mining settings, it has been employed in the mining sector for many generations. It is lightweight yet robust and durable; it can be simply produced; it doesn't rust or corrode; it is simple to clean; and, ultimately, it is a very sustainable material. Stainless steel can survive the severe and abrasive mine settings, which is why it is used to make tools, drill rigs, grinding media, demolition equipment, fluidized bed boilers, tanks, mining screens, pumps, vessels, pipes, heat exchangers, and cathode plates. In addition, stainless steel is the primary material used in the construction of large mining equipment such as bulldozers, shovels, and crushers.

Construction: The use of stainless steel has grown to be an essential part of the building industry because of its strength, resilience, and flexibility. It is frequently used in exterior cladding for higher-intensity buildings as well as interior countertops, backsplashes, and railings. Due to its weld-ability, ease of maintenance, and aesthetic finish, it is a common element in contemporary architecture and can be seen in modern building structures. Stainless steel has aesthetically pleasant qualities and can help the building's natural illumination by having a polished or grain appearance.

Food and Catering Industry: Stainless steel is used to make cookware, cutlery, and other culinary items in the food sector. Knife blades with sharp edges are crafted from less ductile types of steel. For things like grills, cookware, sinks, and saucepans that need to be bent into shape, more ductile steel types are employed.

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3D Printing: For use in quick prototyping, several 3D printing companies have created their own proprietary stainless steel fabrication sintering blends. Products made with stainless steel using 3D printing typically have a more refined microstructure, which leads to higher mechanical properties as a result of the high temperature gradient and quick rate of solidification.

CNC Machining: Stainless steel is a remarkably adaptable material that is frequently utilised in the CNC machining process to create desired end products. The production of several stainless steel products uses CNC machining, a flexible manufacturing process that makes use of the accuracy of computer-guided drills, mills, lathes, and cutting equipment to quickly and affordably produce reliable and accurate end-parts.

Fabrication: Stainless steel is unquestionably a great material for fabricating tasks. Despite being expensive, the alloy is preferred by a wide variety of steel fabrication firms due to its plethora of advantages. The advantages of using stainless steel for fabrication operations can vary considerably depending on your industry. Any of the conventional forming and shaping techniques can be used to create stainless steel with ease.

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By applying suitable pressure and force, authenticate stainless steel can be easily rolled, deep pulled, spun, cold forged, hot forged, or stippled in order to get the desired output. Although stainless steel is incredibly strong and hardens quickly, it is also quite ductile, which allows it to be cold formed.

Extrusion: Numerous industrial components and parts are produced in a range of industries using the process of stainless steel extrusions. Stainless steel components offer the material attributes required for high durability, strength, and corrosive applications, whether they are cast, forged, or extruded. In other words, extrusions made of stainless steel are the best option when a product needs to be exceptionally strong or heat resistant. When corrosion is a concern, stainless steel extrusions are unquestionably preferable since they offer even better heat resistance than carbon steel. In most cases, extruded profiles are the best option for complicated shapes and profile designs.

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Services in Stainless Steel
Zeal 3d for Stainless Steel


  • Zeal 3D is an ISO 9001-2015 certified company that offers a wide range of 3D engineering solutions, including 3D printing, CNC machining, vacuum casting, laser cutting, and CAD services, to assist you in achieving all of your organisational objectives.
  • By utilising our cutting-edge tools and technology, Zeal 3D can expertly manage all of your stainless steel manufacturing and prototyping requirements.
  • With our delivery locations spread out across Australia, we can provide exceptionally speedy delivery of the highest calibre.
  • At Zeal 3D, our team of engineers and designers from all backgrounds is capable of improving any current 3D CAD designs, creating one specifically for your project, and printing 3D models in more than 40 different materials, including stainless steel, aluminium, brass, copper, and plastic.
  • Our top-notch 3D engineering services can help you turn your concept into a tangible reality. Get in touch with us to get a free quote based on your use cases and business needs.


The most crucial characteristic of stainless steels, which also accounts for their creation and extensive use, is their resistance to corrosion. Since a protective coating spontaneously forms on their surfaces, stainless steel sheets are resistant to corrosion to nearly undetectable levels. Chromium is the main alloying component that provides corrosion resistance capability to stainless steel. Chromium creates a thin, self-healing coating that shields the stainless steel from the harsh environment.

Even though it has high corrosion resistance, stainless steel is not fully impervious or immune to corrosion. Even stainless steel is susceptible to corrosion, although it happens far more slowly than other materials, suggesting that stainless steel has a higher uptime. There are four different types of corrosion in stainless steel:

Uniform corrosion: Uniform corrosion generally occurs in very aggressive conditions, such as in the pulp and paper industries, where chemicals, acidic or hot alkaline solutions, are produced or utilised frequently.

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Localised corrosion: Localised corrosion can be caused by a variety of mechanisms, such as pitting corrosion and crevice corrosion. These localised attacks are most common where there is a large concentration of chloride ions.

Stress corrosion cracking (SCC): This kind of corrosion is brought on by three different factors, such as tensile stress, high temperatures, and solutions with higher concentrations of chlorides and hydroxides.

Galvanic corrosion: The corrosion damage caused when two dissimilar materials are linked in a caustic electrolyte is referred to as galvanic corrosion. It is also known as dissimilar-metal corrosion.

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Stainless Steel Material
Stainless Steel Hardness

Hardness of the Stainless Steel

Hardness in material science is defined as the capacity to endure surface scratching and indentation. In other words, the hardness of the material determines its resistance to being scratched, abraded, indented, or even shaped or subjected to localized plastic deformation. Hardness is important because it frequently correlates with resistance to damage from friction or erosion from steam, oil, and water.

Hardness is a measure of a substance's surface's resistance to penetration, and a material's hardness is measured by how deeply a hard indenter can be driven into its surface. The three most well-known and often used machines for testing the hardness of metals are Brinell, Rockwell, and Vickers. Brinell, Vickers, and Vickers machines. Each of them uses a different indenter shape and a different method to apply the well-known force. Thus, transformations between the various scales are only roughly possible.

Types of Stainless Steel

Stainless steel types come in more than 100 distinct grades, however they can be divided into five main types as mentioned below.

Austenitic: Austenitic is one of the mostly used types of stainless steel. It offers outstanding mechanical capabilities over a wide range of temperatures and great heat and corrosion resistance. Austenitic steel is frequently used in household items, construction projects, industrial pipelines and vessels, and facades of buildings.

Ferritic: While sharing many traits with mild steel, ferritic stainless steel is distinguished by its high chromium concentration, which can range from 10.5 to 27 percent. In addition to their magnetic qualities, these stainless steel materials exhibit good ductility, tensile property stability, and resistance to corrosion, thermal fatigue, and stress-corrosion cracking. Ferritic stainless steels are most frequently used in the petrochemical industry, heat exchangers, and furnaces.

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Martensitic: Martensitic stainless steel is extremely strong and hard, but it does not have the same level of corrosion resistance as ferritic or austenitic grades. Martensitic stainless steel is employed in a variety of applications like compressor blades, knives, kitchen utensils, turbine parts, bolts, and screws.

Duplex: As the name suggests, duplex stainless steels have a combined microstructure of austenite and ferrite. Duplex steels are widely used in the pulp and paper, petrochemical, and shipbuilding industries.

Precipitation hardening: Precipitation-hardening stainless steels can alternatively be categorised as martensitic or semi-austenitic steels. By including substances like aluminium, copper, and niobium, these steels are strengthened to an extraordinarily high degree. They are widely utilised in various industries because of their great strength and good durability.

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Stainless Steel
Types of Stainless Steels

Stainless Steel

Stainless steel is an alloy of iron with a number of additional elements, including nickel, chromium, carbon, and molybdenum. Along with numerous proprietary alloys created by various stainless steel companies, there are more than 57 stainless steels that are recognised as standard alloys. Stainless steel has a wide variety of uses in both industrial and consumer markets because of its superior corrosion resistance, high strength, and aesthetically appealing look. In addition to these benefits, stainless steel is also very wholesome, easy to maintain, highly durable, and offers a wide range of features.

Stainless steel metal is made when the raw materials of iron ore, chromium, nickel, molybdenum, silicon, and others are melted and fused together. The process of making stainless steel is a multi-step process that includes melting steel scrap, solid casting, heat treating, cleaning, and polishing. Prior to beginning production, the producer must choose precisely the kind of stainless steel they intend to produce. This is significant because the grade of stainless steel they wish to produce will have an impact on the proportion of stainless steel components, such as iron, carbon, nickel, etc., present in the mixture. Due to the inescapable risk of variation in the purity of each element in the mixture, these ratios aren't always exact; sometimes they're within a particular range.


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