We are the Leading Supplier of SKH9, SKH51 High Speed Steel. 
SKH9 High Speed Steel (M2 High Speed Steel) is a tungsten-molybdenum high speed steel with a well balanced composition suitable for a wide variety of applications.  

We supply and export to Singapore , Indonesia , Brunei and other ASEAN Countries.  
Our specialty is to provide wide range of stainless steel with no minimum order (MOQ).

E Steel supply High Speed Steel SKH9 (SKH51, M2 Steels) Round Bars / Rods / Shafts , SKH9 (SKH51, M2 Steels) Plates 

SKH9 Steel Suppliers - SKH51 Steel , AISI M2 , 1.3343 High Speed Steel  

Chemical Composition of SKH51 , SKH9 Steel 

SKH51 High Speed Steel also equivalent to 

Physical Properties of SKH9 , SKH51 Steel 

• Density:  294 lb/in3 (8138 kg/m3)
• Specific Gravity:  14
• Modulus of Elasticity:  30 x 106 psi (207GPa)
• Machinability:  50-60% of a 1% carbon steel

Mechanical Properties of M2 Tool Steel 

Heat Treating of SKH51 , SKH 9 Steel 

Hardening of HSS SHK9 / SKH51

Preheating:
To minimize distortion and stresses in large or complex tools use a double preheat. Heat at a rate not exceeding 400°F per hour (222°C per hour) to 1100°F (593°C) equalize, then heat to 1450-1550°F (788-843°C). For normal tools, use only the second temperature range as a single preheating treatment.
 
Austenitizing (High Heat): Heat rapidly from the preheat.

For Cutting Tools:
Furnace: 2200-2250°F (1204-1232°C)
Salt: 2175-2225°F (1191-1218°C)
To maximize toughness, use the lowest temperature.
To maximize hot hardness, use the highest temperature.
For punches, dies, and tools that require maximum
toughness without hot hardness:
Furnace: 2075-2175°F (1175-1191°C)
Salt: 2050-2150°F (1121-1177°C)
 
Quenching: Pressurized gas, warm oil, or salt. For pressurized gas, a rapid quench rate to below 1000°F (538°C) is critical to obtain the desired properties. For oil, quench until black, about 900°F (482°C), then cool in still air to 150 -125°F (66-51°C). For salt maintained at 1000-1100°F (538-593°C), equalize, then cool in still air to 150 -125°F (66-51°C).
 
Tempering: Temper immediately after quenching. Typical tempering range is 1025-1050°F (552-566°C). Hold at temperature for 2 hours, then air cool to ambient temperature. Double tempering is required. For large cross sections, and especially for blanks from which tools will be cut by wire EDM, triple tempering is strongly recommended.

 

Applications of High Speed Steel SKH51 , SKH9  

• · Twist drills, taps, milling cutters, reamers, broaches, saws, and knives.