1.2210, 115CrV3, JIS SKS43 ASTM L2, cold work tool steel
1. Applications:
Silver steel for guiding pins, small tools and structural parts in precision mechanics, button-type drills and jagged bits, screw taps, milling cutters, broaching tools, piercing punches, ejector pins, twist drills, punches and taps, surgical instruments, reamers, countersinks, dowels, engraving tools, metal cutting saws, axles and shafts, toothed drills, scraping tools, gear cutters, mortice, wood chisels, guide rods.
2. Chemical analysis:
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C
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Si
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Mn
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Cr
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V
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P/S
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1.10~1.25
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0.15-0.30
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0.20-0.40
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0.50 ~0.80
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0.07~0.12
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0.030
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3. Mechanical properties:
Chromium-vanadium alloyed cold work tool steel with high wear resistance, high edge holding properties, simple heat treatment, good machinability and toughness properties, bright ground and polished according to standard DIN 670 h8.
4. Condition of delivery:
Soft annealed to max. 220 HB
5. Available sizes:
Round Bar: Φ 6-410mm
Flat: 8-160*205-710mm
Mould: 200*200-1200*1000mm
Length: 3000-6000mm
Mill deliver conditions, or sawing or cutting for customer request.
6. Physical properties:
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Thermal expansion coefficient
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10-6 m
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100°C
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200°C
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300°C
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500°C
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m K
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11.8
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12.5
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12.9
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13.7
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Thermal conductivity
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W
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20°C
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|
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m K
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32
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7. Heat treatment:
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Annealing
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Temperature
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Cooling
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Hardness
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710 - 750°C
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furnace
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max. 220 HB
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|||
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Stress relief annealing
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Temperature
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Cooling
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650°C
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furnace
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|||
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Hardening
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Temperature
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Quenching media
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Tempering
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780 - 810°C
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780 - 810 °C, Water
810 - 840 °C, Oil
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see tempering
diagram
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