When steels rub against each other for a period of time, they wear out.
However, there are two types of wear: one intentional wear and one unintentional wear.
Intentional wear, such as sanding, grinding, sandblasting, etc., is deliberate wear based on need.
However, accidental wear will cause damage and other conditions.
Therefore, it is important to use appropriate materials to ensure that the wear of the steel surface will not cause damage to the parts.
Although steel has excellent wear resistance, not all steels have excellent wear resistance.
On the market, there are several types of steel that are specifically made to prevent wear, so they are also called wear-resistant steels.
How is wear-resistant steel made?
Similar to other types of steel, wear-resistant steel is made of iron ore, carbon and other alloying elements.
Iron ore is melted in the blast furnace to remove undesirable substances that may be present in the ore.
During this period, carbon and other alloying elements are added.
In wear-resistant steel, there are a lot of carbon and other alloying elements, such as chromium and manganese.
The addition of these alloy elements makes the steel less prone to wear.
In addition, alloy elements that prevent oxidation are added to the molten pool.
After the above steps are completed, the molten wear-resistant steel is formed, heat-treated, and cut.
The alloy element of wear-resistant steel is one of the reasons that makes it more wear-resistant than other steels.
Wear-resistant steel uses several alloys to improve wear resistance.
For example, carbon helps increase the hardness and strength of steel.
Chromium and manganese can help reduce wear.
Heat treatment is another factor in the wear resistance of steel.
Wear-resistant steel must have a microstructure that gives it high hardness.
This part is achieved by adding appropriate alloying elements.
However, this is not enough to ensure that it forms an appropriate microstructure.
Steel must also undergo a process of heating and rapid quenching to form a microstructure,
Care must be taken when welding and heating wear-resistant steels. If they are heated to a sufficiently high temperature, they may also have an annealing effect, resulting in a reduction in their hardness and therefore reduced wear resistance.
What wear-resistant steels are available?
There are several different wear-resistant steels on the market.
Each steel has a specific Brinell hardness value, because hardness is one of the most important factors to improve wear resistance.
While other steels may be more considered in the manufacture of tensile strength and toughness.
A common wear-resistant steel is AR400.
“400” indicates the Brinell hardness value.
AR450 and AR500 are similar to AR400, except that their Brinell hardness values are higher.
Although the Brinell hardness value of AR400 is lower, its formability is higher.
All three wear-resistant steels are used in mining equipment, cement pouring, forming equipment, excavating equipment and conveyor systems.
WHAT IS ABRASION RESISTANT STEEL PLATE? Abrasion resistant (AR) steel plateย is a high-carbon alloy steel plate. This means that AR is harder due to the addition of carbon, and formable and weather resistant due to added alloys. Carbon added during the formation of the steel plate substantially increases toughness and hardness, but reduces strength. Therefore, AR plate is used in situations where abrasions and wear and tear are the main causes of failure. AR plate is not ideal for structural construction uses like support beams in bridges or buildings. Common uses for AR plate include conveyors, buckets, dump liners, construction...
Wear-resistant steel began as a special steel in the second half of the nineteenth century. In 1883, the British had first obtained a patent from R0.A0.Hadfield, which has a history of more than 100 years. High manganese steel is a wear-resistant steel with a high carbon content and a high manganese content. The age-old steel grade, because of its strong work hardening ability when used under the condition of large impact abrasive wear, as well as good toughness and plasticity, and the advantages of easy production process, so it is still currently The largest amount of wear-resistant steel (especially in...
Wear-resistant steel is widely used in mining machinery, coal mining and transportation, engineering machinery, agricultural machinery, building materials, electric machinery, railway transportation and other departments. For example, steel balls of ball mills, lining plates, bucket teeth of excavators, buckets, mortar walls of various crushers, tooth plates, hammer heads, track shoes of tractors and tanks, blow plates of fan mills, railroad tracks Fork, middle groove middle plate, groove top, circular chain for scraper conveyor of coal mine, blade, shovel tooth for bulldozer, lining plate for large electric wheel body, roller bit for perforation of petroleum and open-pit iron mine, etc. ,...
Wear-resistant steel is widely used in machinery manufacturing, mainly for the selection of mechanical component materials, steel balls of ball mills, lining plates, bucket teeth and buckets of excavators, rolling mortar walls, tooth plates and hammer heads of various crushers , Track pads for tractors and tanks, strike plates for fan mills, railway frogs, mid-slot plates, groove tops, ring chains for scraper conveyors in coal mines, blades and shovel teeth for bulldozers, large electric wheeled vehicles Bucket liners, roller cone bits for oil and open-air iron mine perforation, etc. The following small series introduces the types of wear-resistant steel and...
