M2 Tool Steel | 1.3343 | SKH9 | HS 6-5-2 |  High Speed Steel

SAE M2 Tool Steel (1.3343)  is high cobalt high speed steel. And High Speed Steel toughness and is mainly used for high toughness precision wear-resistant metal cold die.Moreover it also can be used for the cutting tool and the knife in the cooling.  M2 HIGH SPEED STEEL PDF DOWN

Supply Form of M2 Tool Steel (1.3343)  -ASTM A681 High Speed Steel
Supply Range of SAE M2 Tool Steel (1.3343)

 

M2 Steel Round Bar: diameter 10mm – 400mm

M2 Steel Plate: thickness 10 –500mm x width 200– 1400mm

M2 Steel Block: 210mm x 500-810mm

Chemical Composition of M2 Tool Steel (1.3343)  Material
ASTM A681 C Si Mn P S Cr Mo V T Co
M2/ T11302  0.78 ~ 0.88 0.20～0.45 0.15～0.40 0.030 Max 0.030 Max 3.75～4.50 4.50～5.50 1.75～2.20 5.50～ 6.75 /
DIN 17350 C Si Mn P S Cr Mo V T Co
1.3343/S6-5-2 0.95～1.05 0.20～0.45 0.15～0.40 0.030 Max 0.030 Max 3.75～4.50 4.50～5.50 1.75～2.20 5.50～  6.75 /
GB/T 1299 C Si Mn P S Cr Mo V w Co
W6Mo5Cr4V2 0.78～ 0.88 0.20～0.45 0.15～0.40 0.030 Max 0.030 Max 3.75～4.50 4.50～5.50 1.75～2.20 5.50～  6.75 /
JIS G4403 C Si Mn P S Cr Mo V W Co
SKH9 0.86～ 0.94 ≤0.45 / 0.030 Max 0.030 Max 3.80～4.50 4.70～5.20 1.70～2.10 5.90～6.70 /

 

M2 Tool Steel (1.3343)  Material Equivalent and Related Speciations
USA German Japan China ISO
ASTM A681 DIN 17350 JIS G4403 GB/T 1299 ISO 4957
M2 1.3343 SKH9 W6Mo5Cr4V2 HS 6-5-2

 

SAE M2 Tool Steel (1.3343)  Material Mechanical Properties

Hardness, Rockwell C (oil quenched on 1227°C, 5 minutes): 64 HRC.

Hardness, Rockwell C (oil quenched on 1216°C, 5 minutes): 65 HRC

Hardness, Rockwell C(oil quenched on 1210°C), 5 minutes: 64 HRC

Forged of M2 Tool Steel (1.3343)  metal material

At first, Pre-Heating to 552℃，Then heat to forged temperature. Next, Soak at 1204-1227 °C , ensure heat thorough. Then start forged, the forged temperature no low than 560℃. After forging, cool slowly .

Heat Treatment of SAE M2 Tool Steel (1.3343)
  • M2 HSS Steel Annealing

Firstly, Slowly heat to 870℃，then slowly Cool to 538℃(1000℉) in heat treatment furnace. Then cool in air. After annealing hardness HBS: 269 Max

  • M2 Tool Steel (1.3343)  Hardening

M2 steel having very high hardenability and should be hardened by cooling in still air. The use of a salt bath or controlled atmosphere furnace is desirable to minimize decarburization, and if not available, pack hardening in spent pitch coke is suggested. Finally, the temperature employed is usually 1200°-1250°F, depending on size section.

  • Quenching of HSS M2 Tool Steel (1.3343)  material

Quenching temperature / ℃ | salt bath furnace: 1227

Quenching temperature / ℃ | controlled atmosphere furnace: 11188

The heat preservation time/min: 5 ~ 15

Quenching medium: air cooling

  • Tempering Of HSS M2 Tool Steel (1.3343) 

Tempering temperature / ℃ : 552

After tempering hardness HRC or higher: 65

Application of SAE M2 Tool Steel (1.3343) HSS

Suitable for manufacturing various strong cutting tools with wear-resistant, resistant to impact. Advanced punching die, screw die, the toughness and complicated shape of the punch, etc. Roll cutting tool industry: scraper, serrated knife, iron knives, drill bits, etc.

Forging industry: forging die.

Screw industry: heading forming mould, such as teeth, punch

Quality Assured of SAE M2 Tool Steel (1.3343)

Quality assured by ISO 9001:2008 quality management system. Whatsmore, Our all M2 tool steel all had by SEP 1921-84 ultrasonic inspection (UT Test). Quality Grade: E/e, D/d, C/c.

If you have any M2 Tool steel inquiry and question for Price, Application, hot treatment, Please don’t hesitate to contact us.

Email: Jack@otaisteel.com

Tel:  +86-769- 23190193

Fax:  +86-769-88705839

More details, please take a look at our website: www.otaisteel.com