Carbon Steel vs Black Steel –The Ultimate Comparison

Carbon Steel Vs Black Steel

It is important to know the differences, similarities, applications, and advantages both carbon and black steel carries before any purchasing decisions are made.

This guide compares all the vital aspects about carbon steel and black steel.

Carbon vs Black Steel – Their Similarities

Truly, the disparities between carbon and black steel abound. However, they have some unique similarities too. They are as follows:

Carbon Steel Properties
Carbon Steel Properties
  • Composition

Both steels are made of iron and carbon primarily. This is why they are very strong.  Although both alloys have different percentages of carbon content, they both composed of the same.

  • Applications

Due to their similar qualities in hardness, strength, and longevity, they are used for similar applications mostly.

They can be found in construction, consumer products, and engineering works, kitchenware, tools, and more.

  • Strength

Both steels are very high where structural strength is concerned with similar features where weldability, malleability, and ductility, is concerned.

However, black steel has better welding abilities.

  • Maintenance

Both steels are easy to maintain when you know the right methods to ensure these maintenance methods are undergone.

Black Steel Pipes
Black Steel Pipes

Carbon Steel and Black Steel – Unique Differences

Knowing the specific differences between carbon and black steel is not supposed to be taken lightly. It helps you to be specific with the right steel type for the job.


Property to Compare Carbon Steel Black Steel
Alloy composition
  • Iron and carbon primarily.
  • Has more carbon quantities.
  • Mainly made of iron and carbon.
  • The use of other additives such as chromium, manganese, phosphorus, etc. is common.
Physical properties
  • Has low welding, ductility, and malleable features.
  • Extremely high strength structurally.
  • Highly brittle.
  • More ductile and easy to weld compared to carbon.
  • Weaker compared to carbon steel.
Resistance to corrosion
  • Highly susceptible to bleach, chlorine, etc.
  • Can resist corrosion because it is a non-galvanized steel.
Surface Treatment
  • Galvanizing
  • Zinc coating
  • Blackening to deal with oxidization.
  • Post treatment as oil-based solutions.
Varieties Available
  • High
  • Medium
  • Low or mild
  • Black stainless
  • Rebar
  • Black tool steel
  • Black carbon steel, etc.
  • Easily stained
  • Matte
  • Uneven.
  • Glossy
  • Smooth
  • Grey-black.
Erosion Susceptibility
  • Easily susceptible to erosion.
  • Not easily susceptible to erosion.
  • It is safe and environmentally friendly for all.
  • Highly environmentally friendly for people and the environment more than carbon steel.
  • Has higher strength levels.
  • Strength is lower compared to carbon steel.
  • Less durable compared to black steel.
  • Highly durable.


Cost ·         Expensive. ·         More affordable when compared to carbon steel.


Unique Applications of Carbon Steel Vs Black Steel

Listed below are some industries you will find carbon steel being used.

Carbon Steel Pipe Fitting
Carbon Steel Pipe Fitting
  • Automotive parts
  • Wiring
  • Structural steel
  • Forgings
  • Machinery
  • Tubing
  • Tooling
  • Die casting
  • Steel bars
  • Cutlery and cookware
  • Bridges
  • Buildings
  • Railways, etc.

These applications above fall under the three main forms of carbon steel.

Some ideal applications of black steel are:

  • Gas and water utility piping.
  • Cookware
  • Wiring piping
  • Sprinkler systems.
  • Medical equipment
  • Firearms and ammunition.
  • Decorative finishes.

Advantages of Carbon Steel vs Black Steel.

Although the merits of these alloys are clear, you stand to gain from them based on your knowledge of their application potency.

Carbon Steel Black Steel
The presence of carbon makes it hard and strong. It is strong and when used for the right applications, outcomes are amazing.
It is very flexible. Welding is possible through arc welding.
Lasts longer and durable. It is very durable.
Economically friendly. It is friendly to the environment and versatile.
Affordable It is reasonably priced.


Knowing the different advantages, similarities, and differences between carbon and black steel will make it clear to you what makes these alloys unique.

You owe it to yourself to ensure the right steel material is chosen for the right application. This will make it easier for you to enjoy its benefits with your various projects.

More Resources:

Stainless Steel Grades – Source: Tuolian

Black Steel vs Carbon Steel – Source: Pipe Land

Difference Between Carbon Steel and Black Steel – Source: The Difference Between

Comparing Black Steel and Carbon Steel – Source: Piping Mart

One Stop Stainless Steel Supply.

Whether you need stainless steel materials for your business or fabrication projects, TuoLian is your best supplier. You can find all types, grades, and thicknesses based on your needs. Guaranteed that we provide the best quality at a reasonable cost.
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