Cold Work Tool Steel DC53 D2 D6 SKD11 QT Annealed Steel Round Bars

Cold Work Tool Steel DC53 D2 D6 SKD11 QT Annealed Steel Round Bars

 1: DC53 Steel Introduction

  DC53 steel is a new type of cold working die steel modified SKD11, and its technical specification is listed in Japanese Industrial Standard (JIS) G4404. It overcomes the weakness of high temperature tempering hardness and toughness of SKD11, and will replace SKD11 in the field of general purpose and precision die. The toughness of DC53 is twice that of SKD11. The toughness of DC53 is more prominent in cold working die steel. The tool made of DC53 seldom has cracks and cracks, which greatly improves the service life. The DC53 tool steel has a uniform distribution of fine carbides. It has great galling and wear and fatigue resistance. It has also a High temper resistance to support PVD & nitride surface treatments. And it has Machining and grinding properties are superior to most other tool steels.

2: DC53 Steel Equivalent

3: DC53 Steel Chemical Composition

4: DC53 Steel Mechanical Properties

    The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.

5: DC53 Steel Overviews

6: Heat Treatment

Forging
    Slowly and uniformly Heat the DC53 tool steel  to 700°C (1292°F),then rapidly heat the DC53 steel to 900-1040°C(1652-1904°F). After forging slowly cool down.
Annealing
    Normal D53C annealing condition delivery,  hardness 255HB MAX. When finished the DC53 Steel tool, then can heat treatment to appropriate hardness.
Hardening
    Heat slowly the DC53 tool steel to 850°C(1562°F), Soak thoroughly at the temperature. the brought up to 1030°C(1886°F)oil quenching or air cool.
Tempering
    Commonly performed DC53 Tempering is in a high Vacuum controlled convection furnace. The temper is perfect after Hardening.  conducted as soon as the part can be hand at about 45° C (120° F) to 65° C (150° F).  by High temperature tempering and hardening, hardness tool steel DC53 can reached 65 HRC MAX. common application ,we advice the Hardness no higher than 62HRC.

Heat Treatment
    The DC53 Tool steel heat treatment process can be broken down into 4 segments, Hardening (quench) & Tempering.Annealing & Normalized.

7: Delivery Condition
For hot forged or hot rolled bar, usually the delivery condition is hot forged or rolled, annealed, rough turned.
For hot forged plate, usually the delivery condition is hot forged, annealed, milled surface.

For hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface.

Hunan Qilu Metal Co., Ltd has the capacity to forge round steel, steel flat, square steel, module, shaft and roller, etc. The main specifications of the products include Φ80-1000mm forging materials and 80-1200mm square billets and which the maximum piece weight can reach 50T.

Company Main Products:(If you do not find the product you need, please contact us)

Hunan Qilu Metal Co., Ltd were already engaged in exporting steel for 11 years, could supply a great variety of hot forged, hot rolled and cold drawn Steels,  including engineering steel, cold work tool steel, hot work tool steel, plastic mold steel, spring steel, high speed steel, stainless steel etc., besides Qilu Metal also has their own heating treatment shop and machining shop to provide heating and cutting service.

Since 2008 year, Hunan Qilu Metal has the right to export all FORGED STEEL behalf of Qilu Speical Steel Co.,ltd which is specialized in smelting and forging of special steel since 1965 year, now Qilu special steel is one of the biggest manufacturer of forged product in China.The forged products are used in Automotive, Aerospace, Power Generation, Oil & Gas, Transportation and Industrial. We already set up the warehouse in Wuxi and Dongguan city, more than 20000 tons ex-stock could be supplied with kinds of size.

Qilu Metal is the professional one-stop steel manufacturer, stockist and exporter in China, our customers spread all over the world, include West Europe, North America, South America, Asia, Middle Asia, Africa, Australia, etc.

The company owns advanced special steel smelting facilities and forging processing equipments, the main steel-making equipment include 2 sets of 50t ultra-high power electric arc furnaces,2 sets of 60t LF refining furnaces,1 set of 60t vacuum degassing refining furnace and 4 sets of 1-20t electroslag re-melting furnaces.

The main forging equipments mainly include:3 sets of 5t electro-hydraulic hammers, 1 set of high-speed forging units of 800t,1600t,2000t and 4500t respectively.