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Bohler-Uddeholm BÖHLER K340 ISODUR® Premium Cold Work Steel

Category Metal , Ferrous Metal , Alloy Steel , Tool Steel , Cold Work Steel
Manufacturer Bohler-Uddeholm
Trade Name BÖHLER
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Bohler-Uddeholm BÖHLER K340 ISODUR® Premium Cold Work Steel.pdf
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Material Notes:
BÖHLER K340 ISODUR is a universal cold work tool steel with which you‘ll be making money and just when blanking coins, but also when: blanking, cutting, cold rolling, extruding, deep drawing and bending. In applications where materials with good wear resistance and compressive strength coupled with excellent toughness are required, BÖHLER K340 ISODUR has proved itself to be the all-rounder among tool steels.BOHLER K340 ISODUR® is characterized by:8 % Cr-steel with a modified chemical composition High toughness and outstanding compressive strength Excellent adhesive wear resistance thanks to special alloy additionsHigh abrasive wear resistance Very good resistance to temperingSecondary-hardening cold work tool steel with good dimensional stabilityOutstanding EDM machinabilityVery well suited to salt-bath, gas and plasma nitridingCan be PVD coated wellWell suited to vacuum hardeningThanks to the chemical composition and the manufacturing process, this steel has finer and more evenly distributed carbides than ledeburitic 12% Cr-steels (AISI D2) and conventional 8% Cr-steels. This gives the steel its improved toughness properties.Application fields:forming and punching tools e.g. dies and punchescold working tools e.g. tools for deep drawing or extrusioncoining toolsbending toolsthread rolling toolsindustrial knivesmachine components (e.g. guide rails)
Physical Properties Metric English Comments
Density 7.67 g/cc
0.277 lb/in³
Mechanical Properties Metric English Comments
Hardness, Rockwell C 57 - 63
57 - 63
tempering temp 1080 - 1020°F
Modulus of Elasticity 20.6 GPa
2990 ksi
Thermal Properties Metric English Comments
CTE, linear 11.2 µm/m-°C

@Temperature 20.0 - 98.9 °C
6.22 µin/in-°F

@Temperature 68.0 - 210 °F
11.8 µm/m-°C

@Temperature 20.0 - 199 °C
6.55 µin/in-°F

@Temperature 68.0 - 390 °F
12.3 µm/m-°C

@Temperature 20.0 - 299 °C
6.83 µin/in-°F

@Temperature 68.0 - 570 °F
12.7 µm/m-°C

@Temperature 20.0 - 399 °C
7.05 µin/in-°F

@Temperature 68.0 - 750 °F
12.9 µm/m-°C

@Temperature 20.0 - 499 °C
7.16 µin/in-°F

@Temperature 68.0 - 930 °F
13.1 µm/m-°C

@Temperature 20.0 - 599 °C
7.28 µin/in-°F

@Temperature 68.0 - 1110 °F
13.1 µm/m-°C

@Temperature 20.0 - 699 °C
7.28 µin/in-°F

@Temperature 68.0 - 1290 °F
Specific Heat Capacity 0.460 J/g-°C
0.110 BTU/lb-°F
Thermal Conductivity 17.8 W/m-K
124 BTU-in/hr-ft²-°F
Component Elements Properties Metric English Comments
Carbon, C 1.1 %
1.1 %
Chromium, Cr 8.3 %
8.3 %
Manganese, Mn 0.40 %
0.40 %
Molybdenum, Mo 2.1 %
2.1 %
Silicon, Si 0.90 %
0.90 %
Vanadium, V 0.50 %
0.50 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.0000640 ohm-cm
0.0000640 ohm-cm
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