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K100 Tool Steel Round Bar
Products Description
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Equivalent
Steel Grade
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AISI
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DIN
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JIS
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GB
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D3
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1.2080
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SKD1
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Cr12
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Chemical Composition(%)
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Steel Grade
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C
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Si
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Mn
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Cr
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P
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S
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D3
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2.00-2.35
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0.10-0.60
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0.10-0.60
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11.00-13.50
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≤0.03
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≤0.03
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1.2080
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1.90-2.20
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0.10-0.60
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0.20-0.60
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11.00-13.00
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≤0.03
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≤0.03
|
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SKD1
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1.90-2.20
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0.10-0.60
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0.20-0.60
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11.00-13.00
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≤0.03
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≤0.03
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Available Size
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Round Bar: Hot Rolled: diameter 10-60mm, Hot Forged :diameter60-550mm
Flat Bar: Hot Rolled: 12-60X100-610mm, Hot Forged : 30-350X200-810mm |
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Surface condition
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Black surface/Sand blasting/ Grinded/ Machined
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Annealed hardness
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HB250MAX
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Characteristics
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high strength, good hardenability and wear resistance
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High performance cutting tools for steet upto 4mm thickness,trimming dies,blanking dies for paper and plastic ,shear blades for cutting light gauge materialthreat rolling dies,drawing,deep drawing,pressure pads and highly wear-resistant plastic moulds
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Heat Treatment
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Along with the furnace cooling after(850~870) °C× (3~4)h . (740~760)°C×(4~5)h,out air cold Low impact toughness and should avoid tempering at about 950~1150°C
Product Process: |
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Fabrication and Heat Treatment
Heat Treatment
D3 tool steel requires hardening and tempering to achieve maximum properties. For maximum accuracy, the parts of D3 tool steel should be stress relieved after roughing operations. Stress should be relieved at 648°C (1200°F) for one hour and cooled slowly.
Annealing
Annealing of D3 tool steel needs to be done in a controlled atmosphere furnace. D3 tool steels should be heated thoroughly to 871°C (1600°F) and cooled slowly at a rate of not more than -6°C (20°F) per hour, until the furnace is black. Then the material should be removed and air cooled.
Tempering
The D3 tool steel should be cooled to room temperature and should be tempered immediately. The parts should be placed in the tempering furnace and increased slowly to the desired tempering temperature. Tempering for 1 hour per inch of thickness is required.
Hardening
D3 tool steel should be heated properly since it is very sensitive to overheating and if not heated maximum hardness cannot be achieved. The work should be directly placed in a furnace preheated to 954°C (1750°F) and soaked for 20-25 minutes, plus 5 minutes per inch of thickness, and then oil-quenched to harden it.
K100 Tool Steel Produce Process
Electric-Furnace Smelting(EF)→Ladle Furnace(LF)→Vacuum Degassing(VD)→ Argon protected ingot →Multidirectional Forging → (Concave forging →)Normalizing+Hydrogen Diffusion Annealing → Ultrasonic Flaw Detection →Queching+Tempering Prehardened
Machinability
75-80% of a 1% carbon steel.
Corrosion Resistance
Corrosion resistance of this alloy is better than that of plain carbon steels. However it will rust unless given protective treatment.
Product Picture
Our factory
Steel Making
Ingot Production
Forged Bars
Machinary
Delivery
Packing & Delivery
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The inner size of container is below:
-- 20ft GP: 5.8m(length) x 2.13m(width) x 2.18m(high)
-- 40ft GP: 11.8m(length) x 2.13m(width) x 2.18m(high)
-- 40ft HG: 11.8m(length) x 2.13m(width) x 2.72m(high)
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