Songhan Plastic Technology Co.,Ltd.

Latrobe Dynamax™ ASTM M42, DIN 1.3247 Super High Speed Steel

Category Metal , Ferrous Metal , Carbon Steel , High Carbon Steel , Tool Steel
Manufacturer Latrobe Steel
Trade Name Dynamax™
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Latrobe Dynamax™ ASTM M42, DIN 1.3247 Super High Speed Steel.pdf
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Material Notes:
Dynamax super high speed steel is a premium cobalt high speed steel with a chemical composition designed for high hardness and superior hot hardness. These properties make the steel an excellent choice for machining high-strength and prehardened steels, high-hardness alloys, and the difficult-to-machine, nonferrous superalloys used in the aerospace, oil, and power generation industries. Dynamax super high speed steel exhibits excellent wear resistance by virtue of high heat-treated hardness (68 to 70 HRC), and the high cobalt content imparts the hot hardness. As such, the cutting edges on tools made from Dynamax super high speed steel stay sharp and hard in heavy-duty and high-production cutting applications. Typical applications for Dynamax super high speed steel include twist drills, taps, milling cutters, reamers, broaches, saws, knives, and thread rolling 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 7.81 g/cc
7.81 g/cc
Density 7.81 g/cc
0.282 lb/in³
Mechanical Properties Metric English Comments
Hardness, Rockwell C 64.3
Oil Quenched from 1204°C, 5 minutes
Oil Quenched from 1177°C, 5 minutes
Oil Quenched from 1163°C
Modulus of Elasticity 207 GPa
30000 ksi
Machinability 35 - 40 %
35 - 40 %
1% Carbon Steel
Izod Impact Unnotched 13.6 J
10.0 ft-lb
Oil Quenched at 1191°C; 510°C Temper Temperature
24.4 J
18.0 ft-lb
Oil Quenched at 1191°C; 622°C Temper Temperature
Component Elements Properties Metric English Comments
Carbon, C 1.08 %
1.08 %
Chromium, Cr 3.85 %
3.85 %
Cobalt, Co 8.0 %
8.0 %
Iron, Fe 74.42 %
74.42 %
Molybdenum, Mo 9.5 %
9.5 %
Silicon, Si 0.45 %
0.45 %
Tungsten, W 1.5 %
1.5 %
Vanadium, V 1.2 %
1.2 %
Chemical Properties Metric English Comments
Critical Temperature 849 °C
1560 °F
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