What Is Martensitic Stainless Steel, And Various Different Types?

martensitic steel

What Is Martensitic Stainless Steel, And Various Different Types?

Stainless steel is very popular for its heat resistance, corrosion resistance, cleanliness, high strength, and many more. There are different types of stainless steel; the only difference that they might have is the chemical composition. Strength, durability, and corrosion resistance are the common traits of martensitic steel. Because of these qualities, martensitic steel has become an excellent choice for various applications.

In this blog, we will discuss the properties of martensitic steel, its advantages, and many more.

Get the best martensitic steel from the Steel distributor Company India.

What Is Martensitic Steel?

Before we jump into the topic, it is necessary to learn what martensitic steel precisely is.

It is a type of stainless steel that hardens and strengthens through aging treatments and heat because of its composition. This is the process that makes martensitic steel much more robust compared to any other type of steel. Martensitic steel is an ideal option for mechanical valves, medical instruments, mechanical instruments, turbine parts, and many other applications.

What Are The Types Of Martensitic Steel?

On the basis of carbon content, you can easily divide martensitic steel further into different types. These are the two types:

  • Low carbon martensitic steel

The carbon content in the low-carbon martensitic steel is between 0.05 % to 0.25%. Apart from that, the low-carbon version in martensitic steel is comparatively stronger, enhances the potential for fabrication, and provides higher corrosion resistance.

  • High carbon martensitic steel

On the other hand, high-carbon martensitic steel usually has carbon content in the range of 0.61% to 1.50 %. With the help of carbon that strengthens the molecular structure, you will notice an increase in carbon that makes the steel stronger. Although, you must also know that it makes the metal more brittle, and you can not weld or form it into different shapes easily.

Type 420 Stainless Steel

An AISI 420 stainless steel India covers an extensive carbon range between 0.15% to 0.45% carbon content. This is the reason why it has a relatively wide range of hardened levels in both tempered and hardened conditions.

You can get various types 420 stainless at different carbon levels to get specific hardness or mechanical property requirements after heat treatment. Some requirements include cold rolling with a minimum tensile strength of 120,000 psi.

Besides that, steel alloy is also hardenable between RC40-50. You can achieve versatile hardness through heat treat cycles. This makes the 420 stainless steel desirable where it is necessary to have tempered products for certain applications. Some of the applications of 420 stainless steel include cutlery, fasteners, bushings, machine parts, firearms, surgical tools, and valve trim.

Type 440 Stainless Steel

Type 440A stainless steel has the best hardening capability of any other type. However, there is limited formability in the annealed conditions. The company hardens this grade of stainless to over RC50, which allows it to become more attractive for blanking into blade applications.

Its general uses include:

  1. Cutlery

  2. Bearings

  3. Surgical instruments

There are also other applications in which people use type 440A because of its high hardness alongside corrosion resistance.

Final Comments

Contact BK Steel and book your appointment now to learn more about the right type of steel for your manufacturing company.

martensitic steel

Everything you need to know about the possible use of Martensitic steel


Stainless steel stands out for its exceptional features like resistance against heat and corrosion, high strength, ease of cleaning, and much more. The variety of available stainless steel helps to get the necessary product to fulfill a particular project’s specifications. Getting quality stainless steel is important to get hold of the reputed and best steel distributor company. In this blog, I will mention everything about martensitic steel.

Martensitic Steel

Martensitic steel is exceptional stainless steel for its hardness, strength, chemical composition, and aging treatment. The variety of methods are the possible means to get the best results and make it all functional in terms of fabrication with:

  • Turbine parts
  • Mechanical instruments
  • Medical instruments
  • Mechanical valves

What’s the necessary composition of martensitic steel?

One of its major components is chromium which has held its value from around 11.5% to 18%. Other than that, it includes carbon and nickel for exceptional results. The carbon with exceptional molecular structure helps make everything less corrosion resistant and works against various situations.

Possible types of martensitic steel

Some of the most common types of martensitic steel are mentioned below to enjoy its ultimate benefits to the fullest.

  • Type 420 stainless steel

With type 420 stainless steel, the carbon range is between 0.15% to 0.45%. The hardness allows it to work against different scenarios and is easily tempered. Make sure to reach out to the well-known steel distributor for the best AISI 420 Martensitic Stainless Steel in India.

420 indeed is one of the most desirable solutions available out there. And the right processing makes it easier to account on all possible levels. Some of the necessary applications of 420 stainless steel are machine parts, bushings, surgical tools, firearms, valve trim, machine parts, cutlery, and much more.

  • Low carbon martensitic steel

The low carbon steel contains carbon between 0.05% to 0.25%. With less carbon, the material offers higher strength, and resistance against corrosion and is the best choice for fabrication.

  • High carbon martensitic steel

The high-carbon martensitic steel holds carbon between 0.61% to 1.50%. The increase in carbon does help to make it stronger, but compromises upon the brittleness. Additionally, there’s greater ease to getting it shaped against different situations.

Features of martensitic steel

The characteristics of martensitic steel hold different properties that make it exceptional for various situations. Additionally, it does offer greater ease and exceptional results against strength and stiffness against the formed cold parts. The right steel grades are grouped with perfection, offering the right results and specifying the steel alloys with the right results. Some of its mind-boggling characteristics are:

  • Weldability
  • Magnetism
  • Formability
  • High strength

Get the quality and economical martensitic steel

It’s important to choose something that stands out in terms of quality and cost. As one of the well-reputed steel distributors, the entire team of Bk Steel Company always ensures to serve you with what’s best and ensures to deliver the necessary results.