COLD WORK STEELS 2021. 6. 22.¢  K110 EN ¢â‚¬â€œ 06.2021 COLD WORK STEELS B£â€“HLER K110 Physical Properties

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Product Description
High-duty cutting tools (dies and punches), blanking and punching tools, woodworking tools, shear blades for cutting light-gauge material, thread rolling tools, tools for drawing, deep drawing and cold extrusion, pressing tools for the ceramics and pharmaceutical industries, cold rolls (working rolls) for multiple-roll stands, measuring instruments and gauges, small moulds for the plastics industry where excellent wear resistance is required.
Properties
Applications
Flat Bar Ground Flat Long Products Open Die Forgings Plates
Round Bar Round Ground Bar
Machine knife (for producers) Rolling Cold Forming
Coining Fine Blanking, Stamping, Blanking Powder Pressing
Standard Parts (Molds, Plates, Pins, Punches) Screws and Barrels Components for Recycling Industry
Comps. for Equip. Below Ground (Boring, Shafts, etc.) Rolls Wear parts
General Components for Mechanical Engineering Thread rolling
Material designation
1.2379 SEL
~T30402 UNS
X153CrMoV12 EN
D2 AISI
Material characteristics
Compressive strength
Toughness Wear resistance abrasive
800 / 1472 - 850 / 1562
Slow controlled cooling in furnace at a rate of 10 to 20°C/hr down to approx. 600°C, further cooling in air.
Stress relieving
650 / 1202 - 700 / 1292
Slow cooling in furnace. Intended to relieve stresses set up by extensive machining, or in complex shapes. After through heating, hold in neutral atmosphere for 1 to 2 hours.
Hardening and Tempering
Temperature (°C / °F)
1030 / 1886 - 1070 / 1958
Complex shapes / air, simple shapes / air blast, oil, salt bath from (220 to 250°C or 500 to 550°C) or gas. Holding time after temperature equalization: 15 to 30 minutes. After hardening, tempering to the desired working hardness, see tempering chart.
BÖHLER K110
BÖHLER K100
BÖHLER K105
BÖHLER K107
BÖHLER K190
BÖHLER K294
BÖHLER K340
BÖHLER K340
BÖHLER K360
BÖHLER K346
BÖHLER K353
BÖHLER K390
BÖHLER K890
BÖHLER K490
BÖHLER K497
Tempering chart
Hardening temperature: 1030°C / 1886°F - - - - - - 1070°C / 1958°F
Austenitising temperature: 1080°C / 1976°F Holding time: 30 minutes
Hardness in HV 2...100 phase percentages 0,40...59,8 cooling parameters, i. e. Cooling from 800 - 500°C (1472 - 932°F) in s x 10² 2...1 K/min cooling rate in K/min in the 800 - 500°C (1472 - 932°F) range Range of grain boundary martensite formation KgM... Grain boundary martensite
voestalpine BÖHLER Edelstahl GmbH & Co KG www.voestalpine.com/bohler-edelstahl
Quantitative phase diagram
Isothermal TTT curves
Lk... Ledeburite carbide RA... Residual austenite A... Austenite B... Bainite P... Perlite K... Carbide M... Martensite
- - - - - - Oil cooling - • - Air cooling
Austenitising temperature: 1020°C / 1868°F Holding time: 30 minutes
voestalpine BÖHLER Edelstahl GmbH & Co KG www.voestalpine.com/bohler-edelstahl
Influence of work diameter on core hardness and hardness penetration
Heat treatment sequence
voestalpine BÖHLER Edelstahl GmbH & Co KG www.voestalpine.com/bohler-edelstahl
Physical Properties at 20°C / 68°F
Thermal Expansions
Temperature (°C / °F) 100 / 212 200 / 392 300 / 572 400 / 752 500 / 932 600 / 1112 700 / 1292
Thermal expansion (10 m/(m.K) / 10 inch/(inch.F)) 11 / 6.111 11.4 /
6.333 11.9 / 6.611
For more information see www.voestalpine.com/bohler-edelstahl
Density 7.67 / 0.28 [kg/dm³ / lb/in³]
Thermal conductivity 23.9 / 13.81 [W/(m.K) / BTU (IT) ft/hr/ft²/F]
Specific heat 470 / 112.26 [J/(kg.K) / BTU (IT) lb/F]
Spec. electrical resistance 0.65 / 0 [Ohm.mm²/m / Ohm.inch²/ft]
Modulus of elasticity 200 / 29.01 [10³N/mm² / 10³ksi]
voestalpine BÖHLER Edelstahl GmbH & Co KG Mariazeller Straße 25
8605 Kapfenberg, AT

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