The alloy steel is one consisting of steel with the addition of several elements that improve their physical, mechanical or special chemical. These alloys can buy from stainless steel pipe fittings manufacturers in India. The addition of manganese gives it greater resistance to impact, tungsten, allows it to withstand higher temperatures. Normally, the term alloy steel refers to low alloy steels, while high alloy steels are known as special steels and receive more specific names for each variant. This fall into two categories: Low alloy steels and high alloy steels according to the amount of other elements incorporated. Alloyed steels also allow greater amplitude in the heat treatment process.

The effects of the alloy are:

• Greater strength and hardness


• Greater impact resistance


• Greater wear resistance


• Increased corrosion resistance


• Higher resistance to high temperatures

Types of steel alloys used in construction

Steel from Alloy steel pipe fittings manufacturers in India, in metallurgical engineering, is a fusion of iron with a quantity of carbon varying between 0.03% and 1.075% by weight of its composition, according to its grade. However, this metallic composition has undergone new alloy processes with other metals or metalloids, seeking to improve its characteristics for better applicability. It’s based on the function that is desired to practice with this material in the construction industry today. There are many Alloy steel pipe fittings manufacturers in India.

Also, as part of this search to vary the types of steels, the elements usually added are: nickel, chromium, vanadium, molybdenum, magnesium, silicon, tungsten, cobalt, aluminium, among others. So increasing or reducing its levels of resistance and elasticity, to increase the ways in which this metal can be applied in contemporary engineering. Therefore, a brief classification of the most used are presented below:

1. Nickel steels

They are stainless and magnetic, and acquire a breaking load and the limit of elasticity, elongation and resistance to shock. It reduces the expansion due to heat; when they have 10% to 15% nickel, they remain warm even if it cools.

2. Chrome-molybdenum steels

It is simplest to work with heavy machinery and tools, and are increasingly used in construction, tending to replace nickel steel. Among the most common are those of 0.10% carbon, 1% chromium, 0.2% molybdenum; and carbon 0.3%, chromium 1% and molybdenum 0.2%.

3. Chrome steels

They have greater hardness and heat penetration, so they can be tempered to the oil. They are used for the manufacture of sheets due to their high resistance, since they have 1.15% to 1.30% carbon and 0.80% to 1% chromium. They are easily available at Alloy Steel Flanges Manufacturers in India.

4. Chromium-nickel steels

Its use is more common than the first, and they are used as cementing steels, with a proportion of carbon, chromium and nickel; and one of its current uses would be the one with 0.30% carbon, 0.7% chromium and 3% nickel.

Here are the features of steel alloy

High resistance to the corrosion

• Adequate mechanical resistance


• Easy cleaning


• Low surface roughness


• Hygienic appearance


• Inert material


• Ease of forming and joining


• High temperature resistance


• Resistance to cryogenic temperatures (below 0 ° C)


• Resistance to sudden temperature variations


• Surface finishes and varied shapes


• Strong visual appeal (modernity, lightness and prestige)


• Favourable cost / benefit ratio


• Low maintenance cost


• Recyclable material


• Durability