Skh51 Red Hardness Why This High Speed Steel Keeps Its Edge Hot - China

Red hardness is the ability of a steel to keep its hardness and cutting edge while it is hot from the friction of cutting, and SKH51 owes this property to its high tungsten and vanadium content plus a fine, well-distributed carbide network formed during forging and heat treatment.

That is what lets an SKH51 tool cut far longer than ordinary tool steel before it softens.

After quenching and two or three tempering cycles SKH51 reaches about 63-66 HRC and, more importantly, retains much of that hardness at the 500-600 C temperatures seen at the cutting edge.

The secondary hardening peak from molybdenum and vanadium carbides is the practical source of this red hardness.

Songshun controls the forging reduction and spheroidizing anneal so the carbide structure is uniform, which gives stable red hardness batch to batch.

We supply SKH51 in the common bar, plate and blank forms, annealed for machining or hardened to specification on request.

Jobs that depend on red hardness include high-speed milling, drilling and broaching of hardened steels, as well as interrupted cutting where the edge heats and cools repeatedly yet must stay sharp.

Songshun Company Website: https: //songshunsteel.

com/

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Company Contact:

• Posted By: Dongguan Songshun Mould Steel Co., Ltd.

• Phone: 076985475596

• Address: 1st Floor, No. 1, Dongda Fourth Street, Shatou Community, Chang'an Town, Dongguan , Guangdong , China

• Email:

• Website: https://songshunsteel.com/

• Business Description: Established in 2009,Songshun Steel supplies a wide range of carbon, alloy and tool steel products, including high speed tool steel, cold work tool steel, hot work tool steel, plastic mould steel, engineering steel and machine structural steel etc.
  
  After more than 10 years development and growing, Songshun Steel becomes one comprehensive special steel factory, stockist and exporter.
  
  Combined with experienced exporting team and professional technical knowledge, Songshun Steel offers both technical advice and support, as well as global professional steel solution and service.
  
  Due to satisfactory reliable quality and professional service, Songshun expands our market worldwide, such as Colombia, Chile, Spain, Turkey, Iran, Vietnam, Malaysia ,UAE, Canada, Brazil, Mexico and so on.
  
  Songshun specialized in Special Steel for almost 20 years.
  
  We can supply mold steel, high speed steel, alloy steel, free cutting steel and etc.
  
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