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Your present location:Home >> Products >> High Speed Tool Steel >> M35 >> M35 Acero Para Herramientas Pequeña Placa
  • Product Name: M35 Acero Para Herramientas Pe...
  • Product ID: B2017
  • Views : 79

AISI M35 Tool Steel is a Cobalt-Type high speed tool steel. M35 steel is on the basis of M2 Steel, but with 5% Cobalt content increased which makes better hot hardness and wear resistance. AISI M35 Steel is suitable for heat treatment up to 66 HRC, and offers excellent cutting performance.

Chemical Composition
C: 0.80-0.85; Si: 0.20-0.40; Mn: 0.20-0.40; P: max0.030; S: max0.030;
Cr: 3.90-4.40; Mo: 4.75-5.25; V: 1.75-2.15; W: 6.15-6.65; Co: 4.75-5.25;

Equivalent Grades
Werkstoff: 1.3243
DIN: HS6-5-2-5
BS: BM35
JIS: SKH55
Germany: S6-5-2-5
Russia: R6M5K5

Form of AISI M35
Round / Square / Flat Bars, Rods, Plates, Sheets, Blocks

Size of M35 Steel

Round bar

Diameter

Length

-

Forged round barφ50~280

2000~6000

-

Rolled round barφ10~80

2000~6000

-

Flat bar

Thickness(mm)

Width(mm)

Length(mm)

Forged plate20~300

50~710

2000~6000

Rolled plate10~65

155~610

2000~6000

Small plate

10-50

10-50

 

Surface Condition of M35 Tool Steel
Black, Peeled, Rough Machined, Ground

Hardness of M35 High Speed Steel
Annealed (+A): max 269HB

Mechanical Properties of AISI M35 Steel
Tensile strength
Yield point
Percentage reduction of area after fracture
Elongation after fracture
Impact test

Quenched and Tempered (+QT) of M35 Steel
1. Preheat aisi M35 steel slowly to the temperature of 730-840°C;
2. Keep heating up to hardening temperature of 1200-1220°C;
3. Make sure that the material is heated throughly;
4. Quench in the oil or brine;
5. Heat uniformly to the required tempering temperature;
6. Withdraw M35 steel from the furnace and cool in air;
7. The general tempering temperature is 540-560°C which can make the material at 65HRC.
8. The M35 tool steel is also suitable for vacuum hardening and triple tempering is strongly recommended.

Heat Treatment

 

Soft annealing °C

Cooling

Hardness HB

820 - 860

Furnace

max. 269

Stress-relief annealing °C

Cooling

630 - 650

Furnace

1st pre-heating °C

2nd and 3rd

Hardening °C

Quenching

Tempering °C

Hardness after Teperature  HRC

up to approx. 400 in an air-circulating furnace

850 and 1050

1190 - 1230

Saltbath, at least 550 °C Oil ,Air

at least twice 540-570

64 – 67

1 For cold-forming tools with a complex geometry, a hardening temperature at the lower end of the quoted range is recommended. The stated hardening temperatures apply to saltbath hardening only. For vacuum hardening, we suggest a reduction of 10 °C to 30 °C.

 

Applications of AISI M35 Steel
M35 tool steel is usually used in conditions where the demand for hot hardness is high, such as cutting tools including broaches, milling cutters, reamers, end mills and saw blades. It is also a good quality wear resistant HSS grade for cold work area.