1.1535 C90U W110 C105W2 SK4 SK5 T10 C100KU N10 Non-alloy cold-work tool steel bar
Tool Steels used to manufacture various cutting tools, cold and hot deformation dies, measuring tools and other tools are collectively referred to as tool steels. Various tool steels have common requirements, such as high hardness, good wear resistance and certain toughness and strength, as well as their own special requirements, such as red hardness, impact resistance, dimensional stability, thermal fatigue resistance and Good comprehensive mechanical properties, etc. In order to meet these different requirements, tool steels with different compositions are used in production, and their performance requirements are achieved through appropriate heat treatment processes.
High-speed tool steel is an alloy tool steel that contains C, Mn, Si, Cr, V, W, Mo, Co. And it can be used as a high-speed rotary cutting tool, which is wear-resistant and high-temperature resistant, that is, the proportion of Cr, V, W, and Mo is relatively large. Take W12Cr4V5Co5 as an example, Cr->3.75%-5%, V->4.5 %-5.25%, W->11.75%-13%. Among them, the ratio of Cr and V shall not be less than 3%. The content of P and S shall not exceed 0.030%.
The processing methods of alloy tool steel are mainly pressure processing steel and cutting tool steel. There are many types of alloy tool steels, including cold work, hot work, non-magnetic, plastic mold steel, etc. At the same time, the ratio of Cr and V should not be too low. Selection of tool steel for cold work die.
for Steel SK4 (JIS ) and its European equivalent C90U (1.1535) ( EN )
EU
EN |
USA
- |
Germany
DIN,WNr |
Japan
JIS |
France
AFNOR |
Italy
UNI |
China
GB |
Poland
PN |
Czechia
CSN |
Austria
ONORM |
Russia
GOST |
C90U (1.1535) |
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Chemical composition % of steel C90U (1.1535): EN 4957-2000
C |
Si |
Mn |
P |
S |
0.85 - 0.95 |
0.1 - 0.3 |
0.1 - 0.4 |
max 0.03 |
max 0.03 |
Mechanical properties of steel C90U (1.1535)
Brinell hardness (HB): (+A) |
207 |
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