News

News

Alloy Steel: Everything you need to know about alloy steels Pt.2

Data: 2019-08-08
Views: 142

Types of alloy steel


There are two kinds of alloy steel – low-alloy steel and high-alloy steel. As mentioned earlier, the composition and proportion of alloying elements determine the various properties of alloy steel. Low-alloy steels are the ones which have up to 8% alloying elements whereas high-alloy steels have more than 8% alloying elements. 

Alloying elements 


There are around 20 alloying elements that can be added to carbon steel to produce various grades of alloy steel. These provide different types of properties. Some of the elements used and their effects include: 


  • Aluminium – can rid steel of phosphorous, sulfur and oxygen

  • Chromium – can increase toughness, hardness and wear resistance

  • Copper – can increase corrosion resistance and harness

  • Manganese – can increase high-temperature strength, wear resistance, ductility and hardenability

  • Nickel – can increase corrosion, oxidation resistance and strength

  • Silicon – can increase magnetism and strength

  • Tungsten – can increase strength and hardness

  • Vanadium – can increase corrosion, shock resistance, strength and toughness


Other alloying elements that provide varied properties include bismuth, cobalt, molybdenum, titanium, selenium, tellurium, lead, boron, sulfur, nitrogen, zirconium and niobium. These alloying elements can be used singly or in various combinations depending on the properties desired. 


Alloy steel products and their applications 


There are hundreds of products that can be manufactured with alloy steels of varying compositions. These include alloy steel pipes and tubes, alloy steel plates, sheets and coils, alloy steel bars, rods and wires, alloy steel forged fittings, alloy steel buttweld fittings, alloy steel flanges, fasteners and more. Alloy steels have many uses in various industries such as automobiles, mining, machinery and equipment, railways, road construction, buildings, appliances and off-shore applications. 


Applications in building large structures 


In the building and construction industry, alloy steels are used for very large modern structures such as airports, bridges, skyscrapers and stadiums in the form of a steel skeleton. Alloy steels provide the required high strength to support such large structures. Even concrete structures use alloy steels as reinforcement to add strength and reduce the overall weight of structures. Smaller items such as screws, nails and bolts made of alloy steels are used in the building and construction industry.


Applications in building bridges 


Bridges use special alloy steels known as weathering steels. These provide enhanced protection from corrosion because of the presence of nickel, copper and chromium as alloying elements. Weathering steels also find uses in buildings as facing material to improve aesthetics. Weathering steel offers several benefits which include high safety, ease and quickness of construction, aesthetic looks, shallow depth of 
construction, low maintenance and amenable to alterations in the future. Because of its natural weathered finish, no painting is required thus avoiding environmental issues caused by paints. Weathering steels are extremely cost-effective in the long run. 


Via:https://economictimes.indiatimes.com/small-biz/productline/building-materials/alloy-steel-everything-you-need-to-know-about-alloy-steels-and-their-role-in-building-and-construction-industry/articleshow/70344024.cms


News / Recommended news More
2019 - 11 - 11
India's October finished steel exports surged by 60pc to 950,000t from a year ago, according to initial estimates by the Indian steel ministry.Year-to-date exports have risen by 27.7pc to 4.88mn t for April-October from the same period in 2018. India's fiscal year runs from 1 April.A surge in hot-rolled coil (HRC) exports is driving much of the growth.Indian mills are competing aggressively with A...
2019 - 11 - 07
Scientists from the National University of Science and Technology MISiS have created new aluminium alloys that are cheap and effective to use in a wide variety of modern vehicles.Aluminium and its alloys rank second after iron alloys in terms of scalability. Aluminium is easily processed by forging, stamping and rolling; it is also characterised by low density, and aluminium products are lightweig...
2019 - 10 - 30
A team of the TSU Laboratory of High-Strength Crystal Physics is creating highly entropic alloys that differ in the unusual structure of the crystal lattice. They provide new materials with mechanical characteristics that make them suitable for use in the extreme conditions of space and the Arctic – at high and low temperatures, under load, and when exposed to radiation.The object of the physicist...
2019 - 10 - 25
To reduce the manufacturing costs of making tungsten carbide tools, a team of researchers at the U.S. Army Research Laboratory has figured out how to 3D print it into the exact size and shape they want, with little to no post-machining required, according to a U.S. patent application first made public on Thursday.Tungsten carbide is hard, so hard that it’s expensive to make it into useful tools an...
Share:
Uniris Exhibition Shanghai Co., Ltd.
Shanghai Branch
Tel:4000 778 909
E-mail:irisexpo@163.com
  
Guangzhou Branch
Tel:020-8327 6389
E-mail:pmchina@unifair.com

CCEC CHINA official website
犀牛云提供企业云服务
Scan the QR code to visit the official website by phone