what is stainless steel slag processing good

Finishing stainless steel for food-grade applications ...

Finishing stainless steel assemblies for handling food and beverage applications is more complicated than non-sanitary applications. Knowledge of the tools, consumables, and techniques is critical, but likewise the contractor must be familiar with sanitary standards so the system and its finish are

What is Slag? - Definition from Corrosionpedia

Slag is the silicon dioxide and metal oxide mixture left over as a by-product of extracting metal from its ore during the smelting process. Once the metal is smelted out of its ore, the ore appears to be glassy.

Chemical characteristics of iron and steel slag : NIPPON ...

pH Due to the effects of the limestone it contains, the pH of iron and steel slag increases to 10 – 12 when it reacts with water, indicating alkalinity that is the same or lower than that of recycled concrete base course material and cement-stabilized soil.

304 vs 316 Stainless Steel | Metal Casting Blog

304 stainless steel is the most common form of stainless steel used around the world, largely due to its excellent corrosion resistance and value. It contains between 16 and 24 percent chromium and up to 35 percent nickel, as well as small amounts of carbon and manganese.

Most Common Uses of Stainless Steel - Metal Supermarkets

From the smallest zipper to the largest skyscraper, stainless steel is an essential part of modern life. Stainless steel's strength, resistance to corrosion and low maintenance make it the ideal material for a wide range of applications.

Metal recovery - Harsco M

Our slag processing plants are custom-designed for each application. For carbon steel slags: after screening of slag materials our magnetic separation process ensures the highest level of metal recovery. Through further crushing and screening, the scrap can be upgraded to high-Fe material for use as coolant scrap in the mill. The residual slag is sold as an aggregate. For stainless steel slags ...

Steel Slag - Material Description - User Guidelines for ...

Steel slag, a by-product of steel making, is produced during the separation of the molten steel from impurities in steel-making furnaces. The slag occurs as a molten liquid melt and is a complex solution of silicates and oxides that solidifies upon cooling. Virtually all steel is now made in

EAF Stainless Steel Dust Processing - Mintek

process are to produce disposable slag and in the case where dust from a stainless-steel operation (e.g. AOD dust) is smelted, another objective is to recover chromium and nickel into a crude ferroalloy.

Steel slag recycling - Harsco M

The slag derived from stainless steel production presents particular challenges, owing to the handling of fines in its cooled state. Harsco will process Electric Arc Furnace (EAF) and Argon-Oxygen Decarburization (AOD) slag, from austenitic or ferritic grades of stainless steel. We also have solutions for complying with the most stringent environmental regulations, which require additional ...

How stainless steel is made - material, manufacture, used ...

Stainless steel is an iron-containing alloy—a substance made up of two or more chemical elements—used in a wide range of applications. It has excellent resistance to stain or rust due to its chromium content, usually from 12 to 20 percent of the alloy. There are more than 57 stainless steels

What is Slag? (with pictures) - wisegeek.com

2018-11-20· Slag is a byproduct of metal smelting, and hundreds of tons of it are produced every year all over the world in the process of refining metals and making alloys. Like other industrial byproducts, slag actually has many uses, and rarely goes to waste. It appears in concrete, aggregate road materials, as ballast, and is sometimes used as a component of

Type 304 and 304L Stainless Steel Explained - The Balance

Type 304 stainless steel has good forming and welding properties, as well as strong corrosion resistance and strength. It also has good drawability. It can be formed into a variety of shapes and, in contrast to type 302 stainless, can be used without annealing.

Welding of austenitic stainless steel - Job Knowledge 103

Welding of austenitic stainless steel Job Knowledge 103 There are a number of different types of steels that may be referred to as 'stainless'; previous articles have considered ferritic and precipitation hardening steels for example.

Iron and Steel Slag - Industrial Resources Council

Processing slag at the mill site. Blast furnace slag (BFS) and steel furnace slag (SFS) have a long history of being utilized as industrial byproducts, going back almost 100 years in the United States.

Wrought iron - Wikipedia

Wrought iron is an iron alloy with a very low carbon (less than 0.08%) content in contrast to cast iron (2.1% to 4%). It is a semi-fused mass of iron with fibrous slag inclusions (up to 2% by weight), which gives it a "grain" resembling wood that is visible when it is etched or bent to the point of failure.

Slag - Wikipedia

Slag is the glass-like by-product left over after a desired metal has been separated (i.e., smelted) from its raw ore. Slag is usually a mixture of metal oxides and silicon dioxide.

Stainless steel - Wikipedia

In metallurgy, stainless steel, also known as inox steel or inox from French inoxydable (inoxidizable), is a steel alloy with a minimum of 10.5% chromium content by …

A Study of EAF High-Chromium Stainless Steelmaking Slags ...

the process temperatures is instrumental in developing a good slag practice. In order to study the slag in EAF high-chromium stainless steelmaking, slag samples were collected from 14 heats of AISI 304L steel (two samples per heat) and 7 heats of duplex steel


The physical properties of iron and steel slags depend on the chemistry as well as the cooling condition and can be influenced by processing once the slag is removed from the furnace. Slow cooling, for example, generates crystalline blast furnace and steel slag. Quenching the liquid slag (e.g., granulation) on the other hand will generate a vitreous slag with latent hydraulic properties.