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HSS M52 Tool Steel for Taps

HSS M52 is a low alloy high speed tool steel,M52 high speed steel with high toughness,good grind ability,certain hardness and wear resistance.So that makes AISI M52 more suitable for making tools....

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FEATURES: HSS M52 intermediate high speed tool steels are molybdenum - chromium - vanadium type intermediate high speed tool steels.M52 high speed steel is low alloy tool steel,but with high toughness,good grind ability,and certain hardness and wear resistance.


APPLICATIONS: Twist drills, wood working tools,saws,aviation high temperature bears,etc.


COMPOSITION

C

Mn

Si

Cr

W

Mo

V

0.90

0.41

0.30

4.10

1.10

4.50

1.85


SIMILAR BRAND

GB

JIS

DIN

UNS

W1Mo5Cr4V2

------

1.3348

T11352


METALLURGY METHOD:

NON-VACUUM FURNACE + LF FURNACE + ESR

Temper

(℃)

Density (g/cm3)

Elastic Modulus (KN/mm2)

Thermal expansion coefficient (20℃)

Heat transfer coefficient(W/m℃)

Specific heat

(J/Kg℃))

20

7.90

245

29

435

400

7.81

228

1.24x10-6

34

529

600

7.75

205

1.27x10-6

31

628


PHYSICAL PROPERTYS:

HEAT TREATMENT

M52 tool steels are preheated to 871°C and then soaked in order to obtain stability and optimum performance. They are then superheated to 1177°C to reach furnace temperature and they are immediately quenched in oil.


TEMPERING

M52 tool steels are tempered immediately after being quenched and double tempering at 552°C is recommended to obtain optimum performance.


ANNEALING

M52 tool steels are heated to 843℃ and then cooled very slowly. These steels are susceptible to decarburization during heat treatment.M52 with hardness no more than 255HB.


STANDARD SIZE & SURFACE CONDITION

Round Bar: Diameter 1.5mm to 200mm

Flat Bar: Width ≤ 120mm

Plate: Width ≤ 1000mm, length ≤ 2000mm

Surface Condition: Black or Polished Bright (h9)


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