440 stainless steel or razor blade steel has the highest carbon content among them. Specific properties make this special, like mechanical strength, hardness, and fatigue resistance. All this property makes it helpful in becoming a cutting tool. So, it is mainly used for the manufacture of cutlery and razors.
Due to its high carbon content, it is not corrosion resistant but can be used for making equipment that requires moderate corrosion resistance, like surgical knives. Apart from this, it is used for making many different small-scale products and is available in many types like 440A, 440B, 440C, and 440F. Dredging pipes are also one the things that can be made out of 440 stainless steel.
Applications
There are several things that 440 stainless steel is made into, like surgical instruments and dental equipment. Dredging pipes are widely used to connect the dredge pumps with discharged lines. These are also made out of this type of stainless steel. As it is heat and corrosion resistant, it is used for making engine parts like rolling bearings and valve seats. Pivot puns and rollers are also built with this steel as they can give superior hardness and abrasion resistance.
Properties
Some of the fundamental properties that make it suitable for making dredging pipes are:
- Heat resistant– This type of steel has an excellent heat resistance and cannot be used below a set temperature. If you try to over-temper, you might lose some mechanical properties.
- Corrosion resistant– 440 stainless steel has high corrosion resistance, which makes them good for use and hardens and passivated conditions.
- Weldability– They can be pre-heated at 220 degrees Celsius, followed by full annealing.
- Heat treatability– It can be annealed at about 850-900-degree C.
- Machinability– It can be easily machined in the annealed state.
Comparing Different Types of 440 Stainless Steel
When you are deciding on the material to use for dredging pipes, you have to know about the different properties of different stainless-steel pipes and their benefits.
Stainless Steel Pipe 440A
- Excellent wear resistant
- High-carbon content
- Can maintain hardness
- Moderate corrosion resistant
Stainless Steel Pipe 440B
- Not suitable for welding, as it can air harden
- Can maintain hardness
- High carbon martensitic steel
- Good machinability
Stainless Steel Pipe 440C
- Can get strength after heat treatment
- High strength
- Wear resistant
- Excellent hardness properties
Get in Touch with Our Team
Here at Bigfoot Pipe & Piling, we supply new, used, and surplus steel pipes and piling products. They provide pipes in different sized and various finishes. Contact the team to know more.
