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DIN 1.3343 steel is a common Tungsten-Molybdenum type high speed tool steel. It has higher assay percent than AISI M2, so toughness and wear resistance are better than M2 tool steel. 1.3343 tool steel also has higher red hardness, the thermoplastic is good so some high standard cutting tools processed by grade 1.3343 high speed steel. This material must be protected on heating because it is easy to oxidation decarburization.
Typical applications for Din 1.3343 high speed steel are twist drills, reamers, broaching tools, taps, milling tools, metal saws. M2 is suitable for cold forming tools such as extrusion rams and dies, also cutting tools, plastic mould with elevated wear resistance and screws.
JIS SKH9 / SKH51
Chemical Composition Table (%)
Form Of 1.3343
Round /Square / Flat Bars, Plates, Sheets, Blocks
Rounds Diameter Range
Din 1.3343 commonly supplied in standards sizes,nonstandard sizes can be produced within a few weeks, subject to availability of suitable raw material.
1. High Speed Steel M35 1.3243 SKH55
2. High Speed Steel M42 1.3247 SKH59
3. High Speed Steel T1 1.3355 SKH2