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Stainless Steel

Stainless Steel specifications held in the austenitic, martensitic and precipitation hardening varieties. Stocks are held in British Standard and International standards. Below is listed our most commonly supplied grades; please contact our sales office. Also stock is 301 stainless spring temper rolled strip.

Hi-Steel HSLA-80

Hi - Speed, high Speed Steel Tool Steel (made) : highly processed into the Tool Steel, carbon content high, while containing cr quantity is low (about 4%), reason burnish of Steel surface gloss darker, after heat can reach by HRc62 high hardness, resistance to rust performance not on a roll.

Mould Steel

Steel mould and Steel mould suppliers, global delivery, stock supply Steel mould steels.

Heat Resistant Steel

Heat resistant steel. AS Orlov Izobret. Mashinostr. 3, 48-49, 7/2000. The purpose of this work was to increase plasticity of heat resistant steel after aging at the 500-1300 deg C temperature and to improve its operational reliability.

Tool Steel

Comprehensive stocks held of tool steel, including hot work, cold work and plastic mould tool steel specifications. Below we detail our most common grades. Other British Standard and international special steels and tool steels are also available, please contact our sales office.

Ball Bearing Steel

Supplies Ball bearing steel of all types, along with carbon steel and specialty balls, to OEM's around the world. Also offers platinum balls, brass balls, gold, titanium, aluminum, carbon and plastic balls.

Spring Steel

Carbon spring steel is held in a wide range of sizes. Detailed below are our most common specifications. Carbon steel strip and spring steel sheet is available most commonly in the hardened and tempered condition, though certain sizes are available in the annealed condition. Round and flat bar is stocked in the as rolled condition. Most spring steel specifications are held to British Standard steel specifications including BS1449 & BS970.

Alloy and Carbon Steel

Alloy steel is steel alloyed with a variety of elements in total amounts of between 1.0% and 50% by weight to improve its mechanical properties. Alloy steels are broken down into two groups: low alloy steels and high alloy steels. The difference between the two is somewhat arbitrary: Smith and Hashemi define the difference at 4.0%, while Degarmo, et al., define it at 8.0 %.[1][2] Most commonly, the phrase "alloy steel" refers to "low alloy" steels.


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Home » Stainless Steel Types

Upload time:2011.03.07 Sources:Special Steel - Supplies Special Steel, Supplies Tool Steel, Stainless steel, Steel Stockists Suppliers Special Steel Stockists Browse:

Types of Stainless Steel

According to the chemical properties of Stainless Steel, it can be divided into five major types and applications.

Austenitic: Austenitic stainless steel, also known as the 300 series, is the most common and abundantly used steel. It contains 0.15% carbon and 16% chromium, along with other elements like nickel, nitrogen and manganese. It is ductile and also highly resistant to corrosion. Type 304 or T304 is the most commonly used type of stainless steel. It is the classic 18/8 stainless steel. This type of Stainless Steel is used for making shafts, pumps, etc.

Martensitic: It is a high carbon containing steel, having a higher carbon level (nearly 1%) and 18% chromium. It also contain other elements like nickel and molybdenum. It can be hardened by heat and also possesses magnetic properties. It is resistant to corrosion but is less durable than austenitic steel. It is mostly used in making molds, surgical instruments and cutlery.
Ferritic: Both ferritic and martensitic stainless steel types are known as the 400 series. Ferritic steel contains 10.5% carbon and up to 27% chromium. It is less ductile, cannot be hardened by heating, but possesses magnetic properties. It is not tough and less durable than austenitic Stainless Steel. Ferritic steel can be effectively used in sea water as it is highly resistant to corrosion. It is also used in washing machines and even boilers.
Duplex: This type of stainless steel is a mixture of microstructures of austenitic and ferritic steel (in a 50/50 percentage). It contains a higher amount of chromium and a lower amount of nickel. As it is a mixture of the two types of stainless steel, it is tough, resistant to corrosion, stress and may also show some magnetic properties. 'Superduplex' is the best quality of stainless steel and is widely used as it has the highest corrosion resistive properties among all types of Stainless Steel.
Precipitation Hardening: This type of stainless steel hardens at a relatively lower temperature. In the initial stage, it is austenitic. Sometimes other elements are added to it in order to make it tougher. Among all the types of stainless steels, precipitation hardened stainless steel can be transformed into different shapes by heating. It is as corrosion resistant as austenitic Stainless Steel. Although it is prominently used in making aircraft components, it is also used in making shafts and pumps.
Cast: The cast Stainless Steels, in general, are similar to the equivalent wrought alloys. Most of the cast alloys are direct derivatives of one of the wrought grades, as C-8 is the cast equivalent of wrought type 304. The C preceding a designation means that the alloy is primarily used for resistance to liquid corrosion. An H designation indicates high temperature applications.

Based on these types, stainless steel is graded in about 150 grades, viz. from 100 series up to 600 series. The 300 and 400 series have various types and are widely used. Using and cleaning stainless steel is extremely simple and comfortable. As it has literally no maintenance costs and is highly durable, Stainless Steel is found nearly everywhere, in every field, be it at home, commercial areas or in industries.

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