ALTA SPECIAL STEEL(generally called ALTA-SS) deliveries tool steels and alloy structure steels. Owns two industrial bases, respectively located in China mineral capitals - Huangshi, Taizhou. After decades of development, ALTA-SS has grown into China's most competitive tool steel with high level of modernization. Our strong features are an outstanding production depth and well-equipped smelting facilities as following. Electric Arc Furnace(EAF) are the most commonly used equipment in production. Have the ability of phosphorus removal, sulphur removal and deoxidation. The use of EAF allows steel to be made from a 100% scrap metal feedstock. This greatly reduces the energy required to make steel when compared with primary steelmaking from ores. Another benefit is flexibility: while blast furnaces cannot vary their production by much and can remain in operation for years at a time, EAF can be rapidly started and stopped, allowing the steel mill to vary production according to demand. Except EAF, we also equiped Mid-frequency Induction Furnace, lower production costs than EAF, but the steel purity is not as good as electric arc furnace. Ladle Furnace(LF) and Vacuum Degassing(VD) are usually applied to the requirements of higher purity steel, such as producing industrial knives, the rolled plates must need be LF+VD process. The main advantages of LF are as following : 

Desulfuration and remove the inclusions in molten steel



Decarburization and deoxygenation



High accuracy of chemIcal composition control and temperature control



Mechanical properties - Improvement in toughness, ductility, and

transverse properties

Vacuum degassing(VD) of steel takes place after the molten steel has left the furnace and before the steel is poured into ingots or processed through a caster. The main objectives of steel degassing are reduction/elimination of dissolved gases, especially hydrogen and nitrogen. The another most commonly used furnace is Electro Slag Remelting(ESR), it’s used to meet the highest requirements

in

terms

of

purity, toughness

and

polishability. If you are in aluminium extrusion dies,

glass molds etc industries, you will totally need ESR steel, like H-13/1.2344 ESR, 1.2767ESR, 1.2367ESR, 1.2787ESR, 1.4057ESR etc high purity steel. Undoubtedly, it will extand the molds service life. ALTA-SS always persist on the moral values of "Quality is the primary of the enterprise". Adhere to sincerity, creativity and service. Create the greatest values for all stakeholders. We looking forward to establish a long-term and healthy cooperation with clients all over the world, don’t hesitate to contact us now!

1)

Cold work tool steel A2, D2/1.2379/SKD11, O1/1.2510/SKS3, D3/1.2080, D6/1.2436, ,

O2/1.2842, S1/1.2550, 1.2767, 1.2328. 2)

Hot Work Tool Steel S7, H13/1.2344/SKD61, H11/1.2343, H10/1.2365, H10A/1.2885,

H12/1.2606, H21/1.2581, 1.2367, 1.2787, 1.2329. 3)

Plastic Mould Steel 420/1.2083/SUS420J2, 1.2316, 1.2085,

1.2713, 1.2714/SKT4,

1.2738. 4)

High Speed Steel M2/1.3343/SKH51.

5) Alloy Structure Steel 4140/1.7225/SCM440, 4340/1.6582. In here, you are gonna to get a source that continuously reliable in Quality, Pricing and Service ! Give us a ring or write a email to get your most reliable offer and service now ! Sales(at)specialsteel(doc)com