Production Process Of Wear-Resistant Steel

 

 

Process Development

In recent years, the surface strengthening technology of steel materials has developed rapidly, and new technologies for the production of wear-resistant steel have emerged.

 

How Wear-Resistant Steel Is Made

Wear-resistant steel is smelted in electric furnaces or converters, and the products are mostly castings. In recent years, forging, rolling and other hot processing materials are increasing. The production method of wear-resistant steel parts used in general machinery is not very different from other workpieces. Only in the heat treatment process or surface treatment process should be required to achieve the need to ensure wear resistance. For those steel parts where the metallurgical purity of the material significantly affects the wear resistance, refining measures should be taken. And the harmful impurities and gas limit requirements. In addition to the matrix, the number, shape and distribution of the second phase often have a significant impact on the wear resistance of steel parts. At this time, it is necessary to consider the design of the chemical composition of steel, smelting, hot processing, heat treatment (including thermomechanical treatment) and so on, in order to strive to achieve the requirements of improving wear resistance from metallurgical factors.

 

Processing Method

1. Through relevant process tests, master the general characteristics and cutting thickness range of various cutting methods of steel plates.

2. Steel plate cutting methods are applicable to cold cutting and thermal cutting. Cold cutting includes water jet cutting, shearing, sawing or abrasive cutting. Thermal cutting includes oxygen-fueled flame cutting ('flame cutting'), isoparticle cutting and laser cutting.

3、Flame cutting of high grade wear resistant steel is as simple as cutting of ordinary low carbon and low alloy steel. When cutting thick plates of wear-resistant steel, it should be noted that as the thickness and hardness of the steel plate increase, the tendency of cracking at the cutting edge increases.

 

How To Enhance Wear Resistance

Different surface strengthening techniques can be chosen to improve the wear resistance of steel parts under various types of wear conditions. Replace expensive alloy steels with less expensive base materials. Carburizing, carbonitriding, nitriding and other processes are still the main measures to strengthen mechanical parts. The use of co-infiltration, compound infiltration, boron infiltration, metal infiltration, spray welding, overlay welding, vapor deposition, electro-brush plating, ion injection and other processes in various working conditions of different parts have achieved significant results in improving wear resistance. In addition, casting processes such as casting infiltration and composite casting are also used in the manufacture of wear-resistant steel parts.

We are a wear resistance steel supplier, please feel free to contact us if you need them.

Understanding Abrasion And Wear-Resistant Steel(AR Steel)

Not all steels are the same. In fact, there are more than 3,500 different grades of steel, each containing unique physical, chemical, and mechanical properties to make them "custom-tailor" to suit specific applications. Even in certain steel groups, such as abrasion and wear-resistant steel (AR steel), there are many different grades, each with different chemical and mechanical properties, resulting in different properties.

 

Countless shadows of tough

Each number of these AR steel types refers to the hardness of the steel measured on the Brinell hardness scale. However, the processes used by the manufacturers of these AR steel grades can be very different, using different alloys, chemistries and heat treatments to achieve the specified hardness, yield, tensile strength and elongation of the final product. They are all wear-resistant, they all meet the Brinell hardness requirements, but they are all made by very different methods.

 

What makes steel AR?

AR steel alloy is made of steel billets containing different alloying elements such as carbon, manganese, chromium, nickel and boron. Of all these alloys, carbon is the most important for making steel wear resistant because it increases hardness and toughness. Then AR steel is produced through the "Quenching and Tempering" (Q&T) process, in which the grain structure is changed, the toughness is improved, and the brittleness is reduced.

Q&T is a two-stage process: when steel is brought to about 1500 degrees Fahrenheit and then cooled with oil, water or air, quenching occurs. This process increases the hardness. Tempering is the process of heating steel to approximately 300-700 degrees Fahrenheit, which makes the steel tougher.

 

 

Although the high-carbon alloy and Q&T treatment make the steel harder, it also reduces its tensile strength. Therefore, AR steel is used in situations where wear, abrasion, tearing and impact are the main issues, rather than constant tension or pressure. Therefore, AR steel is not suitable for structural structures such as beams in bridges and buildings. Common uses are in barrels, grilles, chutes, conveyor belts, mine bags, and armored vehicles and targets.

 

Better quenching, better steel

Most AR steels are water quenched because this is the fastest and cheapest option. Other AR steels are quenched by water, which destroys the grains, causing the microstructure to resemble a falling "pick-up sticks", making it more likely to be scratched and torn, and accelerate wear and deforming the steel.

Abrasion resistant steel is a steel material with strong wear resistance containing chemical elements such as silicon, manganese, chromium, copper, vanadium and so on.

Abrasion-resistant (AR) steel plate is a high-carbon alloy steel plate. Due to the addition of alloys, AR has formability and weather resistance. Due to the addition of carbon, its hardness is higher.

We are AR steel suppliers. If you need abrasion or wear-resistant steel materials, give us a call and let us know the application, conditions, and components you need from your steel. Our team will work with you to recommend unique steel varieties that are very suitable for your application.