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Latrobe DuraTechâ„¢ NINE Powder Metal Tool Steel

Category Metal , Ferrous Metal , Alloy Steel , Carbon Steel , High Carbon Steel , Tool Steel , Air-Hardening Steel
Manufacturer Latrobe Steel
Trade Name DuraTech™
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Latrobe DuraTechâ„¢ NINE Powder Metal Tool Steel.pdf
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Material Notes:
DuraTech NINE is an air-hardening, powder metal tool steel that provides very high wear resistance in combination with high impact toughness. A large volume of hard vanadium carbides provides the high wear resistance. DuraTech NINE contains less carbon and vanadium than DuraTech A11, which results in a lower attainable hardness, slightly lower wear resistance, but a significant increase in toughness. The lower carbon content also enables DuraTech NINE to be used in warm and hot work applications where resistance to thermal fatigue cracking is important. DuraTech NINE may be used in unique tooling applications for improved toughness compared to DuraTech A11 and high speed steels, and improved wear resistance compared to D2 and other tool steels. DuraTech NINE is widely used for plastic injection feed screws, non-return valves, shear blades, and forging dies.Information Provided by Timken Latrobe Steel.Timken sold Latrobe in December 2006. They are now Latrobe Specialty Steels Co.
Physical Properties Metric English Comments
Specific Gravity 7.41 g/cc
7.41 g/cc
Density 7.39 g/cc
0.267 lb/in³
Mechanical Properties Metric English Comments
Hardness, Rockwell C 53
53
Oil Quenched from 1025°C; 60 minutes
56
56
Oil Quenched from 1066°C; 30 minutes
61
61
Oil Quenched from 1077°C; 10 minutes
Modulus of Elasticity 221 GPa
32000 ksi
Machinability 35 - 40 %
35 - 40 %
1% Carbon Steel
Thermal Properties Metric English Comments
CTE, linear 10.71 µm/m-°C

@Temperature 21.0 - 100 °C
5.950 µin/in-°F

@Temperature 69.8 - 212 °F
12.31 µm/m-°C

@Temperature 21.0 - 538 °C
6.839 µin/in-°F

@Temperature 69.8 - 1000 °F
Component Elements Properties Metric English Comments
Carbon, C 1.8 %
1.8 %
Chromium, Cr 5.25 %
5.25 %
Iron, Fe 81.2 %
81.2 %
Manganese, Mn 0.50 %
0.50 %
Molybdenum, Mo 1.35 %
1.35 %
Silicon, Si 0.90 %
0.90 %
Vanadium, V 9.0 %
9.0 %
Chemical Properties Metric English Comments
Critical Temperature 866 °C
1590 °F
Ac1
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