Tag: Stainless Steel Facts

Classification of Stainless Steels

Classification Of Stainless Steels

What are the classifications of stainless steel?

  1. Martensitic stainless steels
  2. Ferritic stainless steels
  3. Austenitic stainless steels
  4. Duplex (Ferritic-Austenitic) stainless steels
  5. Precipitation-Hardening (PH) stainless steels

 

Stainless steel is a very popular type of steel that is widely used for many different types of circumstances. Chances are, if you’ve taken a trip to your stainless steel supplier in Metro Manila, then you’ve probably noticed that there’s more than just one type of stainless steel.

What makes stainless steel such the popular material? Because of its low carbon content and the presence of chromium. It’s high-corrosion resistance and ability to combat the effects of oxidation are what makes stainless steels the ideal materials for silverware, pipes, and automotive parts. We’ve mentioned earlier that there’s not just one type of stainless steel. There are 5 different classifications of stainless steel, each is grouped by the alloying elements present in the steel:

 

Martensitic Stainless Steels

Martensitic stainless steels are a group under stainless alloys that are mainly made out of chromium and carbon with no nickel content. All grades of Martensitic stainless steels are magnetic and are harden-able with the use of heat treating. This class of stainless steel is known for its immense strength, hardy structural integrity, and incredible wear resistance. 7-grade types fall under this class of steel. T410, T410S, T414, T416, T420, T431, and T440.

 

Ferritic Stainless Steels

Ferritic Stainless Steels

Ferritic stainless steels are great at resisting corrosion and are great at resisting loads of stress and cracking. These types of stainless steel are better at resisting corrosion than martensitic steels but are far more inferior to austenitic steels. Though ferritic steels are magnetic, heat treatment can’t be done to harden the steel. Although they can be cold worked. Ferritic stainless steels contain no nickel and are chromium steels, most of these types of steels are used for decorative purposes such as window frames, curtain rods, and some automotive uses such as exhaust systems. Grade types that fall under this class are T430, T405, T409, T434, T436, T442, and T446

 

Austenitic Stainless Steels

Austenitic Stainless Steels are the most common stainless steel class being used today. This class is high in chromium and nickel, delivering superior corrosion resistance and great mechanical properties. They can only be hardened through cold working and none of the austenitic stainless steel grades are magnetic. Though some may acquire magnetic properties through cold working. Austenitic stainless steel comes in three grade groups: standard grade, low carbon grade, and high carbon grade.

Standard grades contain no more than 0.08% carbon and with no minimum carbon requirement. Low carbon grades are perfect materials to be welded. As low grades have added corrosion resistance after welding. The carbon content of low grade austenitic stainless steels is kept at 0.03% and under. Any higher and the steel will be prone to corrosion due to carbide precipitation.

Low carbon grade austenitic stainless steels are ideal for welding due to its high-resistance against carbon precipitation. High carbon grade austenitic stainless steels have a minimum of 0.04% and a maximum of .10% carbon. Higher carbon steels are great at handling extreme temperatures and high stress. High carbon grade stainless steels are typically used in high-temperature environments. Austenitic stainless steel grades are T304, T316, T317, T321, T347.

 

Duplex Stainless Steels

Duplex Stainless Steels

Duplex stainless steels are a combination of ferritic and austenitic steels. Duplex steel grades have double the strength of ferritic and austenitic steels. Duplex steels have better toughness than ferritic stainless steels but aren’t as strong as austenitic grades. In terms of corrosion resistance, duplex stainless steels come really close to austenitic grades, some even slightly better.

The three duplex stainless steel grades are T2205, T2304, and T2507. Applications of this type of stainless steel can be seen in chemical processing and seawater equipment. In situations where high strength and exceptional corrosion resistance is required, duplex stainless steels are the best choice since they have a low coefficient of thermal expansion and high mechanical strength.

 

Precipitation-Hardening Stainless Steel

This type of steel is a chromium-nickel type that can be heat-treated to strengthen and harden. What differentiates this type of stainless steel from the rest is its unique combination of qualities of strength, corrosion resistance, ease of heat-treatment, and fabric-ability. The two grades of Precipitation-hardening stainless steels are T17-4 and T15-5.

 

Key Takeaway

Learning the different types of stainless steels and their various grades is essential for choosing the right stainless steel to use specific purposes. In the Philippines, One Sky is the best place to go to if you’re looking for a stainless steel supplier in Metro Manila.

You can find all you need and get the best advice from One Sky Philippines. You can’t just use one type of stainless steel for multiple purposes. Without any knowledge about stainless steels, it may seem like there is just one type of this steel that serves an all-around purpose, but as discussed, there are several stainless steel classes and grades that all have their benefits for different types of tasks.

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.