Tag: Stainless Steel Properties

Properties of 304 and 316 Stainless Steel

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What are the properties of 304 and 316 stainless steel?

  1. Chemical composition
  2. Corrosion resistance
  3. Cost
  4. Uses

 

Stainless steel is one of the most used metal alloys for construction and manufacturing purposes. The reason behind that is the many different grades that it has. Each grade of stainless steel differentiates itself in one way or another, yet most people aren’t aware of what these differentiating factors are. This makes trips to their local stainless supplier difficult for most people.

Specifically, 304 and 316 are the two most commonly used types of stainless steel, but the question begging to be asked is, “how exactly are the two different from each other?” It can be easy to mistake one for the other because they are both durable, austenitic (non-magnetic), have no visible difference, and there are only a few tests you can do to distinguish the two. This can sometimes lead to some complications for your construction or manufacturing project.

In order for you to avoid the problems that come with not using the proper grade of stainless steel for your purpose, here are the properties of 304 and 316 stainless steel and how they differ from each other.

 

Chemical composition

Metallic Pipes On Warehouse, Rows Of Metal Pipes On Industrial Warehouse. Industrial Interior,

In terms of similarity in chemical make-up, all types of stainless have the same amount of basic iron and carbon in their composition. The biggest difference between the two types of stainless steel is in the rest of their chemical composition. For steel to be considered ‘stainless’ there is a required level of chromium, 10.5% to be exact.

Chromium is the source of the ‘stainless’ nature of the metal alloy however, there is already a difference when it comes to the level of chromium present in 304 and 316 stainless steel. 304 has 18% while 316 has 16%. Nickel is another element that is present in both grades and they also differ in that regard. 304 contains 8% nickel, while 316 contains 10%.

However, one element that is present in 316, but not present in 304 is molybdenum. 316 always has a minimum of 2% molybdenum in its chemical structure. This naturally leads us to the next property of stainless steel.

 

Corrosion resistance

To put it simply, the added molybdenum in stainless steel 316 makes it more corrosion resistant than the other types of stainless steel, despite all of them being reasonably resistant to corrosion. Molybdenum is specifically added to help resist the corrosion coming from chloride and saline solutions. These are directly related to sources of water such as swimming pools, seawater, and de-icing salts. Knowing this makes it clear why the 316 variant of stainless steel is often referred to as ‘marine-grade’.

 

Cost

Pipe Steel

As a general rule of thumb, the cost of stainless steel is largely dependent on the elements that are present in the alloy’s chemical composition. As previously stated, all variants of stainless steel have a huge amount of iron and chromium. Any other element that will be added ultimately adds to the cost. This is when you start factoring in the other chemicals used to create the alloy such as nickel, silicon, manganese, carbon, etc.

Because 316 contains an element that is not found in 304, it is more expensive than the latter. Molybdenum is certainly not cheap, nevertheless, you are paying for that extra protection against the elements which makes the extra cost reasonably worth it.

 

Uses

Being the most widely used variant of stainless steel, 304 has an innumerable amount of uses that include parts for building and structural facades, kitchen appliances, sinks, pots, pans, stainless hardware, and car parts. It is also well suited for liquid storage and tanks as long as the water is fresh. There really is no limitation to how stainless steel 304 can be utilized as long as it is not exposed to harsh chlorine and saline environments.

Meanwhile, 316 can also be used for normal manufacturing and construction purposes, but due to its increased resistance to oxidation and price, it is more favored for specialized purposes in seawater and marine applications. These include stainless steel floats, boat and ship parts, heavy-duty equipment, and even firearms.

Thanks to its chemical resistance it is also used in processing equipment for paper, pharmaceuticals, and chemicals. Even the medical field benefits because stainless steel 316 is also used for surgical instruments and devices.

 

Key Takeaway

As you’ve already read, stainless steel and 304 and 316 are very similar, yet different at the same time. The key difference lies in the level of resistance to corrosion. If your construction job requires superior corrosion resistance, then 316 is your best bet. But if you are on a tight budget, and will use stainless steel in a relatively normal environment, then 304 will serve you just right. If you’re still not sure what to choose, you can always ask your local stainless steel supplier for advice as they will surely know the right kind of steel for you, stainless or otherwise.

Stainless Steel in the Food Industry

Stainless Steel In The Food Industry

Why stainless steel is popular for the food industry?

  1. Corrosion resistance
  2. Easy fabrication
  3. Easy to clean
  4. Heat resistance
  5. Maintains freshness

 

With the various applications that we often associate this resource with everyday materials and household products, stainless steel in the Philippines is the most widely used metal in the country. But did you know that stainless steel is commonly used in the food industry? Stainless steel has played a huge role in transporting and producing food in factories and other food-related institution. Let’s find out why this amazing metal is so popular:

 

Corrosion Resistance

When it comes to metals and the food industry, stainless steel is the best choice for packaging food or beverages in metal containers. Stainless steel in the food industry can be found in various processes; from food manufacturing to packaging. In the Philippines, stainless steel products are often used when handling food, like knives, pots, forks, and spoons.

The reason for this is because stainless steel has a natural ability to resist the effects of corrosion. Due to the presence of chromium in stainless steel, the effects of oxidation don’t cultivate or promote the steel to rust. Instead, it passively forms a barrier on the surface of the stainless steel that enhances its resilience against corrosion. You don’t have to worry about corroded steel making contact with food when stainless steel is used.

 

Easy Fabrication

Easy Fabrication

A major benefit of stainless steel is its ease of fabrication. Steel designers can enjoy the extensive boundaries of design when crafting something made of stainless steel. Its ease of fabrication plus many other qualities is another reason for stainless steel to be the top choice for the food industry. With stainless steel, it’s possible to achieve a perfectly smooth fabricated surface that is free of cracks, crevices, and a jagged exterior. This prevents the buildup of bacteria and the cultivation of harmful microorganisms.

You may notice that the design of stainless steel containers, vats, and tubing in the food industry are often made with no sharp joints, few angles, and less channeling parts. Expert craftsmen are involved with the fabrication of these as the welds need to be expertly crafted with no broken areas. Sharp angles and hard corners are strictly avoided due to those designs being susceptible to cracking under stress and other structural issues.

 

Easy to Clean

Knowing that most stainless steel materials in the food industry are designed with smooth surfaces and no angled areas, that means that stainless steel in the food industry is easy to clean. As a result, stainless steel can dramatically prevent any harmful bacteria from sticking on the surface of the metal. It isn’t difficult to decontaminate and sterilize stainless steel; which is why, alongside many other reasons, it’s the best choice of metal that is used in the food industry.

Apart from the food industry, you can easily find stainless steel countertops and food-related appliances. Why are these good choices? Because it’s non-porous and cleanup is a breeze. You don’t have to vigorously wipe the surface of stainless steel to keep it clean. Simple strokes with a rug and milk soap will do the trick.

 

Heat Resistance

Heat Resistance

In the food industry, temperature changes are a constant variable in the process of producing any form of food consumables. This is prominent in the beverage industry. The shift from cool to extreme heat and back to room temperature happens every minute. There is no better material to handle these sporadic temperature changes than stainless steel.

For many other metals, elevated temperatures will rapidly deteriorate the quality of the metal, making it prone to the effects of oxidation. At temperatures reaching 2000 degrees Fahrenheit, stainless steel can still effectively resist corrosion. You’ll notice that a production line in the food industry where products are heated involve the use of stainless steel contraptions and machinery. Another great property of stainless steel under the effects of elevated temperatures is its ability to maintain its shape and structural rigidity. Not easily cracking, warping, breaking, or buckling.

 

Maintains Freshness

Because stainless steel containers don’t leach any contaminants, it’ll preserve a food’s freshness for days, weeks, or even months. Naturally, stainless steel provides chemical and bacterial neutrality. How else does stainless steel maintain the freshness of the food or beverage stored? When it comes to cooked food and goods that contain additives, naturally, these foods or goods will produce some amount of alkalis and acids, which could slowly deteriorate the quality of some metals. Stainless steel is naturally inert to the deteriorating effects of acids and alkalis.

 

Key Takeaway

The use of stainless steel in the food industry has helped us preserve and transport food with minimal to no complications. We can see these in syrup tanks, wine containers, knives, spatulas, and evaporator tubes. Though a simple and common metal material, its benefits make it one of the best resources that helped shape the way the food industry works and ultimately, the way we live.

6 Benefits of Stainless Steel

6 Benefits Of Stainless Steel

What are the benefits of stainless steel?

  1. Corrosion resistance
  2. Strength
  3. Heat resistance
  4. Aesthetic appearance
  5. Sustainability
  6. Cleanliness

 

Stainless steel from suppliers in the Philippines and as well as different parts of the world provide many of its unique values that makes it a unique candidate in selecting materials for creating big projects that we use every day and everybody has already heard or come in contact with it at some point and time yet everyone is not fully aware of the distinct properties and unparalleled advantages that you get from utilizing it as a fundamental material. Not sure what is the best material to choose for your next project? Here are the six best benefits of stainless steel and see if it’s the right one for your home:

 

Corrosion Resistance

Stainless Steel stands strong against corrosion, rust, and stains which makes an ideal metal for any area that needs temperature and pressure extremes. When fabricated, chrome is added, which joins with oxygen in the air to create a film over the metal. The film quickly repairs itself when damaged and it allows stainless steel to resist corrosion and rust.

Other elements included in stainless steel are molybdenum, nickel, and titanium which enhances the metals corrosion resistance properties even more which makes stainless steel good choice in transportation, building, or in public works such as railways, tunnels, and bridges.

 

Strength

Strength

One of the main reasons stainless steel is used in a wide variety of accessories is its incredible strength. It retains at both very high and low temperatures. The work-hardening property of austenitic grades results in a significant strengthening of the material from the cold and high duplex grades which allows the reduced material thickness over other conventional grades of steel, therefore, can cost savings. Its many properties can be used in design to reduce material thicknesses and may be heat treated to make very high strength components.

 

Heat Resistance

Stainless steel is strong in high heat temperatures and it makes a popular choice for various heat exchangers, boilers and other applications where high levels of heat are present. The material itself is resistant to oxidizing or reducing atmosphere depending on its chemical balance.

Stainless steel alloys are capable of being used in temperatures above 1200 Fahrenheit or 670 Celsius, these temperatures are particular in gas environments and indicated by acceptable levels of rupture and strengths that correspond to the required time of service.

 

Aesthetic Appearance

Aesthetic Appearance

Without the shadow of a doubt, aesthetic appeal is a significant component of any material used in production. One of the main reasons homeowners choose stainless steel for their home accessories and furniture is because of its aesthetics. Stainless steel doesn’t fade, smudge or rust and can be molded into a variety of shapes and sizes. The bright and easily maintained surface of stainless steel provides a more modern and attractive appearance.

There is a reason why stainless steel is used in many household appliances for it has a variety of possible finishes that make it visually pleasing to any space and it is used more commonly in creating architecture, monuments, vehicles, jewelry, and more.

 

Sustainability

Ultimately, the most environmentally friendly materials are corrosion resistant and durable, have high-recycled content and recapture rates, provide long service life, and reduce resource use and stainless steel fits the criteria. Fifty percent of the material previously melted stainless steel scraps and reduced waste.

Stainless steel plays an important role in providing sustainable design and as an alternative to energy evolution. Stainless steel can last a lifetime of a project. Choosing the right stainless steel can hold up to even some of the worse environments yet can still retain its beauty over time.  More and more organizations are choosing to remain aware of the impact that they’re having on their communities.

 

Cleanliness

Whether you are in a household setting or a public space, cleanliness is something that should always be prioritized. It is simply a matter of proper hygienic practices that can make all the difference in the prevention of potential health hazards. Stainless steel is easy to clean and its hygienic properties make it the suitable choice for hospitals, kitchens, food and pharmaceuticals processing which makes cleanliness necessary.

Washing with soap or mild detergent followed by a rinse of warm water is usually quite adequate for domestic and architectural equipment. It actually requires little maintenance, meaning it remains unaffected by microorganisms and does not need extra coating.

 

Key Takeaway

Stainless Steel is a favorite among suppliers in the Philippines, and it is used in many ways. Its advantages make an ideal choice for many household applications, creating public works for transportation, food and pharmaceutical processing and even creating beautiful architecture and pieces of furniture.

Stainless steel itself is a low maintenance material and it’s easy to clean with just one wipe of any solution on hand. The material can last a long time if taken care of properly and it plays an important role in providing a sustainable design.