HS6-5-2 Annealled Round Bar Qualified Sales Promotion After Coronavirus in China in March . This time Chinese Spring Festival holiday was very special . We did not use this holiday to party with all our relatives and friends as usual . In the end there was no travel to relax . Instead , we were stayed at home with close relatives . Due to the effects of the new coronavirus . We respond to government calls to isolate ourselves and prevent the spread of the virus . Our efforts have paid off. Most of us are now back to work .

In this month , our HS6-5-2 Annealled Round Bar Qualified have sales promotion to our regular customer . Thanks for all your pay attention to us . All of us hope the world are peaceful .

HS6-5-2 Annealled Round Bar Qualified

Otai Special Steel have HS6-5-2 Annealled Round Bar Qualified Sales Promotion After Coronavirus in China in March .

HS6-5-2 Annealled Round Bar Qualified Tool Steel Chemical Composition Properties

ASTM A600 C Mn P S Si Cr V Mo W
M2 regular C 0.78 0.88 0.15 0.40 0.03 0.03 0.20 0.45 3.75 4.50 1.75 2.20 4.50 5.50 5.50 6.75
DIN ISO 4957 C Mn P S Si Cr V Mo W
1.3343 0.86 0.94 … … … … … 0.45 3.80 4.50 1.70 2.10 4.70 5.20 5.90 6.70
JIS G4403 C Mn P S Si Cr V Mo W
SKH51 0.80 0.88 … 0.40 0.03 0.03 … 0.45 3.80 4.50 1.70 2.10 4.70 5.20 5.90 6.70

HS6-5-2 Annealled Round Bar Qualified Mechanical Properties

Density         0.294 lb/in3 (8138 kg/m3)
Specific Gravity                  8.15
Modulus of Elasticity         0.294 lb/in3 (8138 kg/m3)
Thermal conductivity         24 Btu/ft/hr/°F  41.5 W/m/°K
Machinability          65% of a 1% carbon steel
  • HS6-5-2 Annealled Round Bar Qualified  Tool Steels Properties Mechanical
Mechanical properties Metric Imperial
Hardness, Rockwell C (tempered at 1150°F, quenched at 2200°F) 62 62
Hardness, Rockwell C (as hardened, quenched at 2200°F) 65 65
Compressive yield strength (when tempered at 300°F) 3250 MPa 471000 psi
Izod impact unnotched (when tempered at 300°F) 67 J 49.4 ft-lb
Abrasion (loss in mm3, as-hardened; ASTM G65) 25.8 25.8
Abrasion (loss in mm3, tempered at 1275°F; ASTM G65) 77.7 77.7
Poisson’s ratio 0.27-0.30 0.27-0.30
Elastic modulus 190-210 GPa 27557-30458 ksi
  • HS6-5-2 Annealled Round Bar Qualified Steels Thermal Properties
Thermal properties Metric Imperial
CTE, linear (@20.0 – 100°C/ 68.0 – 212°F) 10 μm/m°C 5.56 μin/in°F
CTE, linear (@20.0 – 500°C/68.0 – 932°F) 12.2 μm/m°C 6.78 μin/in°F
CTE, linear (@20.0 – 850°C/68.0 – 1560°F) 12.6 μm/m°C 7 μin/in°F

 

 Forging of AISI M2 High Speed Steel  (Corresponding materials )

Pre heat M2 HSS steel slowly and uniformly to 850-900°C. The heat should then be increased more quickly to the forging temperature of 1050-1150°C. If during the forging the temperature of the M2 high speed tool steel material drops below 880-900°C, re-heating will be necessary. Cool the M2 steel component very slowly after forging.

  • Anneal

Heat to 1600° F, soak thoroughly at heat. Furnace cool 25° F per hour to 900° F, air cool to room temperature. Approximate annealed hardness 241 Maximum Brinell.

Stress Relief of Unhardened Material: Heat slowly to 1200 to 1250° F. Soak for two hours per inch of thickness at heat. Slow cool (furnace cool if possible) to room temperature.

HS6-5-2 Annealled Round Bar Qualified

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