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special steel
we can ensure that the steel we source is tailored to the needs of our valued customers.
special steel line

Special steel, also called alloy steel, is a kind of steel. Special steel is the addition of one or several alloying elements in carbon steel in appropriate amounts.This gives the steel a variety of different special properties, such as strength, hardness, plasticity, toughness, wear resistance, corrosion resistance, and many other excellent properties.

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Composition of special steel

Steel Specials B16 Bar Stock Component Carbon Manganese Phosphorus, max Sufur, max Silicon Chromium Molybdenum Vanadium
       Wt. % 0.36 – 0.44 0.45 – 0.70 0.035 0.04 0.15-0.35 0.80-1.15 0.50-0.65 0.25-0.35

Specifications of special steel


Main Alloy

Effect on Alloying Elements


Non (99% Alum.)

Unalloyed aluminium is highly corrosion resistant, low strength, workable, conductive, Non-heat-treatable.


Copper Based

Gives strength, hardness, machinability, Heat-treatable


Manganese Based

Adds moderate strength, good workability. Non-heat-treatable


Magnesium Based

Moderate to high strength. Corrosion resistant. Non-heat-treatable


Magnesium & Silicon Based

Increase strength, formability, corrosion resistant. Heat-treatable.


Zinc Based

For greatest strength. Heat-treatable.

Special steel Mechanical Property

Steel Specials B16 Bar Stock Mechanical PropertiesMinimumComments
Tensile Strength, ksi125 ksi
110 ksi
100 ksi
up to 2 1/2
2 1/2 – 4
4 – 7
Tensile Strength .02% Offset, ksi105 ksi
95 ksi
85 ksi
up to 2 1/2
2 1/2 – 4
4 – 7
Elongation at Break18 %
17 %
16 %
up to 2 1/2
2 1/2 – 4
4 – 7
Reduction of Area50 %
45 %
45 %
up to 2 1/2
2 1/2 – 4
4 – 7

Advantages of special steel

Specifically, it has the following advantages.
1) High strength, high stiffness, good ductility, high plastic deformation capacity and low seismic action.
2) Better than ordinary steel materials to meet the requirements of long spans and large heights.
3) Excellent weather resistance and weldability, the latter can improve the welding quality and reduce the possibility of cracking at the welded nodes.
4) All factory-made, easy to process, transport and install, short construction period.
5) Simple and flexible arrangement of the components of the structure, saving the amount of steel used.
6) Strict control of trace elements, the quality of hot-dip galvanizing will be well guaranteed, and the appearance is beautiful and maintenance-free.

Applications of special steel

1.Mainly used in the manufacture of petroleum, chemical, gas separation and shipping
container or other similar devices, such as all kinds of tower vessels, heat exchangers,
torage tank and tank car, etc

2.Manufacture all kinds of stamping parts, construction and engineering structure and
some of the less important machine structure and parts.

3. Buildings and Bridges,Vehicles, towers and other structures.

4.Used as a floor, workshop escalator, working pedal, ship deck and car plate and so on

5.Make fixed boiler, boiler and other important hull attachments.

6.Pressure vessels, welding gas cylinder steel plate

main export country

We are a well known worldwide supply and export Special steel in following countries:,Italy, Philippines, France,Ireland, Portugal, Gambia, Thailand, Ukraine, United Kingdom, Netherlands, South Africa, Spain, Turkey, Libya, Romania, Puerto Rico, Azerbaijan, United Arab Emirates, Pakistan, Ghana, Slovakia, Germany, Saudi Arabia, Afghanistan, Bolivia, Switzerland, Bangladesh, Taiwan, Oman, Egypt, Greece, Norway, Singapore, Bulgaria, Estonia, Belgium, Yemen, Hong Kong, Ecuador, Sri Lanka, Nepal, Belarus, Finland, Gabon, Iran, Canada, Argentina, Lebanon.

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