Stainless Steel Seamless Pipe VS Seamless Carbon Steel Pipe

Seamless carbon steel pipes are made by piercing steel ingots or solid tube blanks into capillary tubes, and then made by hot rolling, cold rolling or cold drawing. Stainless steel seamless pipes are steel pipes that are resistant to weak corrosive media such as air, steam, and water and chemical corrosive media such as acids, alkalis, and salts. Also known as stainless acid-resistant steel pipe. This article will talk about the differences between these two kind of pipes.

Differences Between Stainless Steel Seamless Pipe And Carbon Steel Seamless Pipe:

1. Amount of Alloy

Chromium in stainless steel pipes is an alloying element, and the content of chromium alloys is very high, while the main alloying element in carbon steel pipes is carbon, and the carbon content is the lowest among steel alloys.

2. Chemical Elements

Another difference between stainless steel pipes and carbon steel pipes is that the main components of stainless steel pipes are chromium, carbon, phosphorus, manganese, sulfur, nickel and molybdenum in stainless steel pipes, while the main components of carbon steel pipes are carbon, manganese, silicon and copper.

Stainless steel pipes and carbon steel pipes are both iron alloys and belong to the steel category. Steel has the highest carbon content by weight. Stainless steel pipes and carbon steel pipes can be distinguished based on alloy elements.

3. Raw Materials

Stainless steel refers to alloy steel with Cr content greater than or equal to 13%. Stainless steel seamless pipes can be divided into austenitic stainless steel seamless pipes, ferritic stainless steel seamless pipes, martensitic stainless steel seamless pipes, etc. Stainless steel seamless pipes are generally non-magnetic, but that's not entirely true. Austenite is not magnetic, ferrite is, but the magnetism is weak. Different stainless steel seamless pipes have different corrosion resistance and different corrosion resistance to different media.

Carbon steel is an iron-carbon alloy. According to the carbon content, it can be divided into low carbon steel seamless pipes (wrought iron for short), medium carbon steel seamless pipes and cast iron. Generally, those with a carbon content of less than 0.2% are called low-carbon steel seamless pipes (MS seamless pipes), commonly known as wrought iron or pure iron; those with a carbon content of 0.2-1.7% are called steel; those with a carbon content of more than 1.7% are called pig iron.

4. Application

In practical applications, stainless steel seamless pipes have excellent properties that cannot be replaced by other steel types. For example, some high-temperature resistant stainless steel seamless pipes are widely used for decoration due to their excellent surface properties. Materials, as well as the excellent mechanical properties of stainless steel seamless pipes, make them used in various manufacturing industries.

Carbon steel is usually used in metal parts that require strength, hardness, and wear resistance, such as knives, steel cables, piano wires, springs, knives, etc. Machined parts often require machining and tempering. The higher the carbon content of steel, the higher its hardness, strength and wear resistance after heat treatment. Carbon steel is divided into high carbon steel, medium carbon steel and low carbon steel; according to its characteristics, high carbon steel is hard and brittle, while low carbon steel is soft and ductile.