For steel pipes, the raw material – steel, is the decisive factor in the quality of the pipe. Different types of steel will result in different performance of the pipe.
Types Of Steel
There are many types of steel. Below I will introduce to you several types of steel commonly used in steel pipes! You can choose the type of steel for the pipeline according to your needs.
Types Of Steel – Carbon Steel
Among all types of steel, carbon steel is definitely the most common. Everyone knows carbon steel, which is the most widely used and most used material.
The main component of carbon steel is C, and its carbon content is the key to classifying carbon steel.Low carbon steel ≤ 0.25%, medium carbon steel 0.25% – 0.60%, high carbon steel ≥ 0.60%
You can click here to view specific articles on low carbon steel, medium carbon steel, and high carbon steel
Advantages
- High strength, capable of withstanding relatively high internal and external pressures.
- Low cost, carbon steel production technology is highly mature, offering a high cost-performance ratio.
- High weldability, especially for mild steel, allows for on-site welding.
- Easy to machine, straighten, and maintain toughness.
weakness of steel type
- Completely non-corrosion-resistant, requiring subsequent coating with an anti-corrosion coating.
- High-temperature resistance is average, and hardness may be lost at high temperatures.
Types Of Steel – Stainless steel
Stainless steel, as the name suggests, is steel that is not easy to rust. Stainless steel pipes play an important role in conditions where high corrosion resistance is required.
Stainless steel is divided into many types due to different element contents. Different types of stainless steel have different performances.Austenitic stainless steel (the most commonly used stainless steel, accounting for 70% of the market), ferritic stainless steel (lower cost, more resistant to chloride corrosive media), duplex stainless steel (a mixture of the above two stainless steels, with super performance)
You can click here to view specific articles on stainless steel
Advantages
- Superior corrosion resistance is the core competitive advantage of stainless steel pipes.
- The smooth surface resists dirt and grime, making it easy to clean and hygienic.
- It is resistant to high temperatures, high pressures, and low temperatures.
- It has high strength and hardness.
weakness of steel type
- The cost is higher than carbon steel.
- It is heavy and has poor thermal conductivity.
- Due to its high hardness, it is also difficult to cut and process.
Type Of Steel – Alloy Steel
Alloy steel is actually made by adding one or more alloying elements to carbon steel. Elements include Cr, Mo, V, Ni, etc. Each element has its own characteristics. Usually, multiple elements are added to make the combined effect of multiple elements to achieve the effect of 1+1>2.
There are many types of alloy steels, which can be classified by elements or by use.
You can click here to view specific articles on alloy steel
Advantages
- Both strength and hardness can be increased, and even greater strength and hardness can be achieved through heat treatment.
- Elements such as chromium, molybdenum, and manganese can enhance hardenability, making the steel’s properties more uniform.
- By adjusting these elements, advantages such as high toughness, improved corrosion resistance, increased heat resistance, and wear resistance can be achieved.
weakness of steel type
- The biggest drawback is the high cost, as some elements are rare and therefore very expensive.
- Due to its high strength, it is more difficult to process and cut.
Types Of Steel – Tool Steels
Tool steel is not actually a type of steel, but a type of steel named for making tools, molds, and measuring tools. Tool steel is not used to make pipes, but is used to act on pipes, such as cutting, forming, etc.
Tool steel also has many classifications, including cold work tool steel, hot work tool steel, high speed steel, plastic mold steel and impact resistant tool steel.
Characteristics of tool steel
- High hardness
- High strength
- High toughness
- Wear resistance
