Year1
- 规格：
- 齐全
- 价格：
- 合理
- 质量：
- 保证
Characteristics of the material
The abbreviation code of the steel is -, which is to meet the requirements of guide hardness > when the tool linear speed reaches / and the cutting edge temperature reaches ℃ during the cutting process. , a high-speed steel obtained by adding a large amount of alloying elements such as , , , and etc. to high carbon steel. And can improve the hot hardness of steel. When the tempering temperature is ~℃, , , precipitate and form
and
, and secondary hardening occurs, that is, the hardness rises instead of falling during tempering. Tungsten-based cobalt-containing high-speed tool steel is made by adding a mass fraction of cobalt to steel. Therefore, in addition to having the properties of steel, the addition of cobalt improves the high-temperature hardness and hot hardness of steel, so it can be used at higher temperatures. The steel also has high toughness and is easy to grind.
Delivery status
Hardness B.
Chemical composition
According to standard B~, the chemical composition (mass fraction) of the steel: ~.,
.~.,.3,.3,.~.,3.~. ,.~.,.~.,.~.,~..
Reference corresponding grades
German material number. German standard grade-, Chinese B standard grade
, British B standard B, French standard grade, French standard grade-, Italian standard grade, Spanish standard grade -, Japanese standard brand, American/standard brand, International Organization for Standardization standard brand -, Chinese Taiwan standard brand, Korean standard brand, American standard brand, Russian гост standard brand Ф, Swedish standard brand.
Annealing specifications
Annealing temperature ~℃.
Quenching and tempering specifications
Preheating temperature ~℃, quenching temperature ~3℃, salt bath furnace, box furnace heating, oil cooling.
Tempering temperature ~℃, hardness 3.
Typical application examples
Used to make various cutting tools with higher temperatures, such as turning tools, planers, milling cutters, broaches, reamers,
Thread combs, forming tools, drills Cutting tools, gear cutters, hobs, scrapers, taps, etc.
Used to make cold work molds.
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