The mould does far more than hold the shape. It controls how fast and in which direction the steel solidifies, and that decides grain structure, the extent of centreline segregation, and whether the surface cracks. Fluted molds increase surface area and speed up heat extraction. Square moulds are the general-purpose choice for drawing down. Round … Read more
Choosing the right forging ingot size is not simply a matter of matching the ingot weight to the finished component. The size and profile of the starting forging ingot directly influence material yield, forging reduction, internal soundness, machining cost and the final inspection outcome. An ingot that is too small may not provide the required … Read more
Vacuum degassing in steel making is a critical secondary metallurgy process used to reduce dissolved gases in liquid steel, especially hydrogen, oxygen and nitrogen, before casting. Vacuum degassing (VD) exposes liquid steel to a vacuum so dissolved gases, mainly hydrogen, along with oxygen and nitrogen escape before the steel is cast. In heavy forgings, hydrogen … Read more
For valve and oil field forgings, grade selection is driven almost entirely by service temperature and environment. Use A350 LF2 / LF3 for low-temperature service, A182 F11 and F22 for elevated-temperature and hydrogen service in refineries, and A182 F91 for high-temperature, high-pressure steam and power applications. Where the medium contains hydrogen sulphide, the material must … Read more
EN31 SAE 52100 bearing steel is widely used for bearing races, balls, rollers and other precision components where high hardness and fatigue resistance are required. EN31 SAE 52100 bearing steel is a high carbon, high chromium through-hardening steel used for ball and roller bearings. It is known internationally as SAE 52100, AISI 52100 or 100Cr6. … Read more
IBR stands for the Indian Boiler Regulations, 1950, framed under the Indian Boilers Act, 1923. When a supplier calls itself an IBR approved forging ingots manufacturer, it means the mill and its material are recognised under those regulations for use in boilers and steam pressure parts, and that it can issue material certificates in the … Read more
Forging ingots vs continuous cast billets is one of the most common comparisons for forging shops in India. Choosing the right material depends on component size, forging ratio, cost, yield and application. Choose forging ingots when you need large cross-sections, heavy finished weights, open die forging, ring rolling or a high forging ratio. Choose continuous … Read more
20MnCr5 vs SAE 8620 The Practical Decision: Which Grade Wins? In the Indian automotive and industrial gear markets, the choice between 20MnCr5 and SAE 8620 often dictates the balance between manufacturing cost and component longevity. If you are producing standard transmission gears for passenger vehicles or light commercial trucks where cost-efficiency is paramount, 20MnCr5 is … Read more
For machine shops and component manufacturers, the quality of a finished part is often determined by a choice made months earlier at the melt shop. While many suppliers offer Rolled Bars and Alloy Steel Round Bars, there is a significant performance gap between a generic bar and one engineered from a vacuum-degassed (VD) route. As … Read more
This guide breaks down the technical differences between EN19 (42CrMo4) and EN24 (34CrNiMo6) to help design engineers and procurement teams make the right choice. In the Indian forging and manufacturing sector, EN19 and EN24 are the most frequently specified alloy steel grades. While they share similarities as high-strength materials, choosing the wrong one can lead … Read more