Friday 29 May 2020

Know more about steel plate quality and steel properties


The mechanical and physical properties of steel can vary greatly depending on its composition and percentage of impurities (such as phosphorous or sulfur).
In this way, when you want to achieve better mechanical and physical properties, steel angle bar can be alloyed with other materials such as: chromium, cobalt, copper, molybdenum, nickel, nitrogen, selenium, tantalum, titanium, tungsten or vanadium.
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The composition and properties of steel pipe vary widely there are more than 3,500 steel alloys. Steel generally has lower carbon content than that found in iron, and fewer impurities than those found in other metals. All these grades cause different characteristics in physical, chemical and environmental properties to be achieved. Different types of steel are produced by Metal Supplier Singapore according to the properties required for its application. It should be considered that as the strength of the steel increases, its ductility decreases and that as the strength increases, the elasticity does not change. Being a material of industrialized and controlled production, the structural properties of steel generally have little variability. Variation coefficients of the order of 10 percent + / -
The properties of steel can be classified into 2 main branches:
Mechanical properties: Refers to resistance, ductility and hardness and these, in turn, depend greatly on the type of alloy and composition of the steel hollow section itself.
Plasticity:  It is the ability of steel to retain its shape after being subjected to an effort. Steels chequered plate that are alloyed with small percentages of carbon are more plastic.
Fragility:  Refers to the ease with which steel can be broken when subjected to stress. When steel is alloyed, with a high percentage of carbon, it tends to be more brittle.
Malleability: It is the property that the steel has to be rolled. This way, several stainless steel alloys tend to be additional malleable than others.
Hardness: It is the resistance that a metal opposes to abrasive agents. The more carbon you add to steel flat bar alloy, the harder it will be. Tests on Brinel (HB) or Rockwel C (HRC) units are generally used to verify the degree of hardness.
Tenacity: It is the concept that denotes the ability of steel to resist the application of an external force without breaking. In the case of steel with a medium carbon concentration, the toughness tends to be higher.
Physical properties: correspond to the density, electrical and thermal conductivity do not vary greatly from one alloy to another.
Body: They include what is related to the weight, volume, mass and density of the steel.
Thermal: There are three fundamental aspects of steel: its ability to conduct temperature (conduction), its potential to transfer heat (convection), and its ability to emit infrared rays into the medium (radiation).
Electrical: Refers to the ability of steel to conduct electric current.
Optics: In the case of steel, they denote its ability to reflect light or shine. An example of this is with the alloy required to achieve stainless steel, the higher its percentage of aluminum, the better the optical property.
Magnetic: It is its ability to be induced or to induce an electromagnetic field. The higher the percentage of iron in the steel alloy the greater its ability to act as a magnet.

Saturday 16 May 2020

Substitutes and new manufacturing steel materials

Lately there has been a lot of talk about aluminum as a substitute for steel as a new material with innumerable applications. For this reason, Aluminium Supplier In Singapore have decided to carry out an initial survey that will be the starting point for an analysis of the market and the environment.
First of all, and before Stainless Steel Supplier Singapore would like to thank for wise comment on the advisability of exploring products called substitutes, among which manufacturer can include both materials that have long been incorporated into your lives and materials once again.

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Steel

Material born from the fusion of iron and coal its origin dates back to 3,000 BC according to some archaeological studies. This material has been used for endless purposes, from the manufacture of firearms to the construction of the hull of ships, automobiles, utensils, molds, machining, etc.

There is little to discover about steel that you do not already know. It is a good conductor of electricity and heat and is easier to recycle compared to aluminum and has a higher surface hardness. Today, it is present in most of what surrounds all.

The growth in demand shot up in the industrial revolution as it was the material from which your dreams of machines were made, increasing productivity, a transport revolution and factories that promised a time of splendor and abundance, all made with scraps of iron. Nowadays, it is a usefull materials and to many industries and in general manufacturing.

The world steel output Gross in 2014 reached 1,662 million tons.

Aluminum

There is some controversy regarding who to attribute the "invention" of aluminum, and this controversy comes from the fact of the degree of purity achieved as a result of the processes developed by Stainless Steel Singapore managed to synthesize aluminum, but it was not completely pure.

Among its most notable characteristics are its resistance to corrosion and oxidation, its weight (around one third of the weight of copper or steel), its condition as a non-magnetic material, its zero toxicity, impermeability and high capacity to be recycled in a 100% without loss of properties. Not surprisingly, it is the most widely used metal after steel as it offers virtually all the characteristics of steel with the advantage of weight and resistance to corrosion and oxidation. To get an idea of ​​the durability of the material, some analyzes estimate that around 75% of all the aluminum produced throughout its existence is still in use.

Obtaining method

From the beginning the problem was finding a method to extract it profitably in industrial quantities. Bauxite extraction was expensive and difficult.

Currently, extraction is carried out from the mineral known as bauxite by successive electrolysis.
The main disadvantage of aluminum lies in the high amount of electrical energy required, which increases production costs. However, it has a low cost of recycling and, therefore, a long useful life. Recycling represents 95% energy savings compared to obtaining aluminum for the first time.

Applications

  • Electricity sector: Electricity transportation is more efficient with aluminum than with copper.
  • Communication sector: Antennas for television and satellites.
  • Automotive industry: For economic reasons. Castings and extrusion profiles such as pistons, wheels, transmission cases, suspension assemblies, radiators, and structures or bodies.
  • Railway sector: Aluminum in locomotives. Energy savings are achieved because aluminum is a lightweight material.
Building and construction: Its use is the majority in Spain among metals. Window and door structures.