About High Speed Steel M35 Material Introduction

The main characteristics of M35 high speed steel are general cutting tool die steel containing CO, quenching hardness is 1200-1240C.

The main uses are hob, broach, end Milling cutter.

Standard comparison: AISI-M2 JIS-SKH51

Factory state: spheroidizing annealing <225

Characteristics and application: this steel is high speed tungsten steel.

It is suitable for manufacturing wear-resistant and impact-resistant tools, advanced punching dies, screw dies, tools requiring toughness and complex shapes, reamers, milling cutters, iron heads, Punches, etc.

Forging temperature :1100-900℃

Annealing temperature: Heate to 800-850℃, stay at this temperature for 2-4 hours, let it gradually cool in the furnace.

Cooling medium: air cooling, oil, classification (550-580℃)

Typical chemical composition (mass fraction, %):

C 0.88~0.95, Mn≤0.40, Si≤0.40, Cr 3.80~4.50, Mo 4.75~5.20, V 1.75~2.00, W 6.00~7.00, P≤0.030, S≤0.030, Co 4.60~5.00.

Refer to the corresponding steel number:

China GB standard steel W6Mo5Cr4V2CO5, the United States AISI standard steel M35, Japan JIS standard steel SKH55/SKH58, Japan Hitachi Hitachi standard steel YXM4, Japan Daido standard steel MH55, Japan Fujietsu NACHI standard steel HM35, Germany DIN standard

The quasi-steel number is 1.3243, Austria Bohler standard steel number S705, France NF standard steel number Z100DCWV(09-04-02-02).

Quenching and tempering specifications: quenching temperature 1190~1230℃, quenching oil or quenching gas, tempering temperature 550~580℃, hardness 65~66HRC.