In order to make steel harder, a common treatment is to Quench and Temper, a process that involves heating, rapid cooling, and re-heating the steel. However, while Quench and Temper is common, it is ENDURA’s unique take on this process that gives it its TRIP EFFECT properties.
The Quenching Process
The first step in the process is to heat the steel to over 870℃. Heating to this temperature causes a grain structure called “austenite” to form. An austenitic grain structure produces a very soft metal.
After the steel has been heated, it needs to be rapidly cooled, or “Quenched”. As the steel is quenched, the austenitic grain structure is transformed in different grain structures such as martensite, ferrite, or pearlite depending how quickly the cooling takes place.
There are different methods for cooling:
- Water: cheapest and fastest but can cause cracking (may use salt water)
- Forced air: the slowest and must be rigorously controlled
- Oil: provides a slower cooling rate, reduces distortion and cracking, and is the most expensive
All methods of quenching require uniform controlled cooling in order to prevent warping or cracking.
The Tempering Process
After being quenched, the metal is very hard and very brittle. To reduce the brittleness, the steel is reheated for a set period of time to between 200℃ and 600℃. Depending on time and temperature during this process, the hardness is reduced but the ductility is increased. The steel is then cooled in air.
ENDURA’s Oil Quenched Advantage
ENDURA Steel is the only wear steel that is “Oil Quenched”. This is an expensive process but yields a homogeneous micro structure and the TRIP EFFECT (Transformation Induced by Plasticity). This means less cracking, gouging, and tearing of the steel compared to other wear steels, which in turn means longer wear life and reduced down time.
High Manganese Steel (Manganal) is perhaps one of the most unique and exceptional types of specialized steel on the market. However, if you mention ‘Manganese’ to anyone outside of the world of metallurgy, you’ll likely be met with a blank stare.
To help you to understand just how exceptional our High Manganese steel (Manganal) is, we have assembled a list of the most common questions that customers tend to ask:
When it comes to steel, the mechanical properties of the grade of steel can often mean the difference between a long, efficient life in the most abrasive and wear-intensive applications, and frequent or even catastrophic failure. Understanding these properties is absolutely essential when selecting the best grade of abrasive-resistant steel for your application. Unfortunately, these mechanical properties are very specific, and their exact metallurgical definitions are not widely known outside of metallurgy. (more…)
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Heat treating is an extremely useful process. Through its proper application, it can change the properties of steel, hardening materials that need extra wear resistance, or softening materials to make them more suitable for cold forging or deep drawing. Tool, Die, and Mold steels can all achieve extremely impressive properties in part from the heat treatment of the steel. However… (more…)
Since the federal government imposed tariffs on steel products imported from Canada, we’ve had quite a few people ask us what we think of the policy, the impact it has on the American steel industry, and if it affects our ability to bring you abrasion resistant steel and other products whose raw materials come from across the border. (more…)