PRODUCT
High tech high quality Seokwang Special Steel
Maker
| Steel Classification | Classification | Standard | Application | |||
|---|---|---|---|---|---|---|
| KS | JIS | AISI | Similer steel | |||
| Rapid tool steel | KCW1, KCW2 | Cutting special steel, Forging special steel, Special steel, Old matal, Wood working, Paper knife, Pressing tools, Bronz manufacturing | ||||
| KHW1, KHW2 | ||||||
Product and Size view
Product
| Classification | Steel species series |
|---|---|
| Carbon tool steel | t is an alloy of iron and carbon with a C of 0.035~2.0%, and in addition to containing some alloying elements of silicon and manganese, it is common to contain impurities such as phosphorus and sulfur. Usually, those with C 0.12% or less are very mild steel, C 0.12 to 0.20% mild steel, C 0.21 to 0.35% semi-mild steel, C 0.36 to 0.50% semi-mild steel, C 0.51 to 0.80% light steel, C 0.81 to C 0.81 to A strength of 1.70% is called the best strength. |
| Low Carbon / Medium Carbon / High Carbon | |
| Alloy steel | Refers to steel containing one or two or more alloying elements in order to improve or improve the properties of steel or to provide predetermined properties. Special steel includes high-grade carbon steel and alloy steel. Alloy steel is steel containing one or two or more of nickel, chromium, manganese, silicon, tungsten, molybdenum, cobalt, aluminum, titanium, etc. in addition to iron and carbon. |
| Mn / Mn-Cr / Mn-Ni / Mn-Mo / Mn-Ni-Mo / Cr / Cr-Mo / Cr-Si / Ni / Ni-Cr / Ni-Cr-Mo / Si-Mn-Cr / Mo / Mo-Si | |
| Hardenability Guaranteed Steel | Also called H steel, this steel is mainly used for materials for parts in the automobile industry and aircraft industry, and high quality uniformity is required by heat treatment. Therefore, in order to obtain uniform hardness of parts and materials, predetermined heat treatment is performed according to the material, and the range of hardness is defined by statistical techniques. |
| Mn
/ Mn-Cr / Cr-Mo / Ni-Cr
/ Ni-Cr-Mo |
|
| non-refined steel | In general, non-tempered steel for hot forging is applied to parts only by direct cutting by omitting tissue heat treatment (Q/T) and cooling after forging of parts. It is broadly classified into non-tempered steel for processing. |
| Carbon / Mn |
|
| nitrided steel | Nitride steel refers to steel that has been hardened by nitriding the surface of structural parts, and its characteristics are as follows. - Excellent abrasion resistance. - There is little heat treatment deformation and heat resistance. - High fatigue strength. Therefore, nitrided steel is mainly used as a precision mechanical part that requires excellent mechanical properties. |
| Cr-Al
/ Cr-Mo-Al |
|
| High tensile steel | High-tensile steel is structural steel whose mechanical properties, weldability and corrosion resistance are improved by adding alloying elements other than carbon to mild steel. In general, as alloying elements, Mn, Si, Ni, Mo, Cu, V, Ti, B, etc. are added little by little. Large chains made of high-tensile steel have been used for ship machinery for a long time, and recently, as they are used for large-scale ships and mooring of oil rigs for oil resource development, their demand is gradually increasing. |
| High tensile strength / Ultra high tensile strength | |
| Spring steel | Spring steel is a core component material used in various industrial machines including the automobile industry. Due to the characteristics of its use, fatigue strength and permanent deformation resistance due to repeated loads under design stress are directly related to the lifespan of the spring. And strict control of surface quality is basically required. Its main use is in automobile coil springs, leaf springs, torsion bars, and other suspension components and stabilizers, which are parts of driving stability. |
| High carbon
/ Cr-Mo / Si-Mn / Si-Cr
/ Mn-Cr / Mn-Cr-V / Mn-Cr-B
/ Mn-Cr-Mo / Mn-V |
|
| Free-cutting Steel | With the recent development of the machinery industry, high efficiency for machining, improvement of machining accuracy of parts, and reduction of machining costs are required. As a method of adding a machinability element to improve the machinability of steel, various free-cutting steels have recently been developed up to automobile parts. |
| C-S
/ Mn-S / Cr-Mo / S-P |
|
| Bearing steel | Bearing steel is used as a material for bearings connecting the power shaft and rotating body in automobiles and various mechanical parts, and since the durability of the bearing is in inverse proportion to the content of impurities such as oxygen and Ti, non-metallic inclusions, and giant carbides, the refining process It is a high-clean steel that can be manufactured only by fine control and optimal heating conditions. In addition, strict surface quality is required to secure the forgeability (hot and cold) of the material. |
| High carbon / Carburizing | |
| Boron steel | Boron steel is a steel whose hardenability is improved by adding B instead of Ni, Cr, and Mo, which are expensive elements, and has excellent toughness and impact resistance. It is mainly used for parts for heavy construction equipment. |
| Carbon / Mn / Mn-Cr / Cr-Mo / Ni-Cr-Mo | |
| Special purpose steel | Machine structure / Railroad / Tool steel / Heat-resistant steel / Special alloy steel / Stainless steel / Cold rolling steel |
| Etc | Special main steel for tunnel support KTB600/500 / Dowel Bar / Q/T bar / Q/T square material / Axle |
Production standard
| Classification | Features | |
|---|---|---|
| Large rolled material |
A product rolled using the performance bloom and ingot obtained from high-clean molten steel | |
| Bar | Diameter 60, 70, 80, 85, 90, 95, 100, 105, 110, 120, 130, 140, 150, 160, (170, 180, 190, 200, 210, 220) | |
| Scantling | Angle 65, 72, 85, 90, 95, 100, 110, 120, 155, 180 | |
| Flat iron | Width(W) 255, 305, 355, 405
Thickness(t) 32, 38, 45, 50, 60, 70, 80, 100, 120 |
|
| Small rolled material |
Small products produced from billets with a centrally controlled rolling system | |
| Bar |
|
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| Flat iron |
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| Bar in Coil |
|
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| Secondary processing material | High value-added special steel products | |
| Bar |
|
|
| QT | Diameter 30 to 420 (including square materials of the same cross-sectional area) Process : Q/T, Q/T-RT, RT-Q/T, Q/T-SRA, Q/T-CD |
|
| Forgings | Free forging material with excellent quality using ingot and bloom | |
| Bar | Diameter 230∼600 | |
| Scantling | Products equivalent to 250×230 to 510×500 | |
| AXLE | 200-250 iron axle | |