Cast Steel
STEEL TYPES Carbon Steel—Steel in which carbon is the principal alloying element. Commonly referred to as steel, straight carbon steel, plain carbon steel or AISI-SAE 1000 series steel. Low Alloy Steel—Steel limited to a total alloy content of 8%. It can be heat treated to higher levels of hardness and strength. These steels are the […]
4 Types of Heat Treating Processes
Common types of heat treating methods include annealing, hardening, quenching, and stress relieving, each of which has its own unique process to produce different results. Annealing Annealing is a heat treatment process used to modify the microstructure of a metal to improve its ductility while reducing internal stress and overall hardness. This allows the material […]
Welding of Cast Iron
Cast irons are a family of iron-carbon alloys. Their high carbon content (usually 2–4%) gives cast iron its characteristic hardness. However, that hardness comes at the expense of ductility. It is less malleable in comparison to steel or wrought iron. The heating and cooling cycles during welding cause expansion and contraction in the metal, inducing […]
Global pig iron production increases in 2023 y-o-y
According to data from the WorldSteel Association, in 2023, global pig iron output went up by 1.1% year on year to about 1.41 billion tons. Among them, China was the top 1 pig iron-producing country, with output increasing by 0.7% year on year to 871.01 million tons. The followings were India (growing by 10.6% year […]
Shell Casting Process
STEP 1: Creating the Pattern In the course of the shell moulding process, the first step is to create a shell moulding pattern. Different factories use different techniques to manufacture the pattern. But, essentially, these factories have the same goal – to manufacture a shell moulding pattern resembling very much with the part or component […]
Types of Casting Defects
Defination of Casting Defects : It is an unwanted irregularities that appear in the casting during metal casting process. There is various reason or sources which is responsible for the defects in the cast metal. Some of the defects produced may be neglected or tolerated and some are not acceptable, it must be eliminated for […]
Quenching
Quenching is a step in many heat treatment processes that involves heating the part to the required temperature and immersing it in a quenching medium to quickly cool it. Other heat treatment processes often follow quenching, such as aging, tempering, or annealing to achieve the desired results. By rapidly cooling the metal, you can prevent […]
Steel Casting Specifications
In the specification process for steel castings, there are three key words which should be understood. These are specifications, standards, and codes. Specifications A specification is a form of standard, which precisely states a set of requirements to be satisfied by the casting. Some of these requirements might be chemical composition, mechanical properties, repair procedures, […]
Foundry Casting Inspections
The inspections castings go through ensures they are equipped for the customer’s needs and tasks. Inspections include visual, dimensional, X-ray and liquid dye penetrant inspections. 1. Visual Inspection The visual inspection involves using the human eye to detect surface defects, tears, misruns, cracks, cold shuts, gas evolution, molding flaws, metal penetration, slag adhesions and sand […]
Prevention of Forging Cracks
The principle of preventing crack 1. Chemical components of refractory raw material should strictly comply with the standards of harmful elements, such as S, P, O, N, CU, AL and other easy to form inclusion elements and An, Sb and other trace elements should be controlled. 2. To strictly control the smelting and casting process. […]