Steels Designations ā Here the AISI Standards
The AISI standard is one of the most popular methods of designation in the field of stainless steel. AISI stands for American Iron and Steel Institute; the latter is an association of North American steel producers. In today’s post we want to learn more about this designation system that allows the identification of types of […]
How to Use Duplex Stainless Steel?
Today we talk about duplex stainless steels. The latter are ferrous steels with a mixed crystalline grain structure of austenite and ferrite. How would you classify these steels? And what are their distinctive characteristics? What are two-phase steels? As mentioned earlier, the microstructure of duplex stainless steels (or two-phase) is called “hybrid”. This precisely because […]
How to Prevent Localised Corrosion of Stainless Steel?
After talking about general corrosion in our previous blog post, today we would like to focus on another type of corrosion. In the specific, we shall treat, about localised corrosion. What is localised corrosion? Contrary to general corrosion, the localised corrosion only occur on certain parts of the metal surface. So, only locally. This corrosion […]
Stainless Steel. How to Prevent General Corrosion?
In regards to metallic materials, we often speak of corrosion. Today, we will focus on its mechanisms, its characteristics and the prevention methods we can implement. What is general corrosion? We speak about general corrosion (or uniform corrosion) when all surfarces of a metal (or a large area) are exposed to an aggressive environment. By […]
What Is the Carburizing Process for Steels? Well, Find Out!
In the post published on Tuesday, we looked at the annealing treatmentfor austenitic and duplex steels. Today we want to talk about that carburizing process which, depending on the application, change the properties of components. What is the carburizing process? The carburizing processi is a diffusion heat-treatment that allows a mechanical component of steel with […]
What Is the Annealing Treatment for Austenitic Steels?
Heat-treated steel is subject to more or less complex cycles of heating, maintaining and cooling to defined temperatures. After talking in the previous posts of steel hardening, today we will examine another heat treatment: the annealing. What is the annealing heat-treatment for stainless steels? The process of annealing (intended for austenitic steel, both stainless and […]
What Are the Tempering and Hardening of Hardened Steel?
The hardened steel has low resistance, in addition to an high hardness. Therefore, the hardened steel would be too fragile for most uses. What should you do? Tempering of hardened steel After hardening, it is essential to use the tempering treatment, as it is fundamental to undo any tensions and fragility. How does this kind […]
What Is the Hardening Heat-Treatment Process of Steels?
Hardening heat-treatment process is carried out on different types of metal alloys, especially steel. This treatment is fundamental to increase the hardness of the steel itself. What are the hardening heat treatment phases? To be considered hardenable, the steel must contain a good percentage of carbon and certain alloy elements, such as chromium, nickel and […]
What Are the Problems That May Occur in Hydrogen Embrittlement?
In today post we want to talk about the hydrogen embrittlement. This chemical-physical process affects different metals, including right steels, more specifically those with high-resistance. How does the hydrogen embrittlement take place? This type of process is the result of the āundesirableā introduction of hydrogen within the steel which can take place during This mechanism […]
Silicon, Titanium and Vanadium. How Do They Affect Properties of Steel?
How do the properties of steel change when certain chemicals are added during their preparation? Titanium, silicon and vanadium are just a few of these elements we will cover today. Silicon: a semiconductor Silicon (Si) is a tetravalent metalloid and semiconductor. This element is always associated with iron and is used as a constituent in […]