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Hi - Speed, high Speed Steel Tool Steel (made) : highly processed into the Tool Steel, carbon content high, while containing cr quantity is low (about 4%), reason burnish of Steel surface gloss darker, after heat can reach by HRc62 high hardness, resistance to rust performance not on a roll.

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Alloy steel is steel alloyed with a variety of elements in total amounts of between 1.0% and 50% by weight to improve its mechanical properties. Alloy steels are broken down into two groups: low alloy steels and high alloy steels. The difference between the two is somewhat arbitrary: Smith and Hashemi define the difference at 4.0%, while Degarmo, et al., define it at 8.0 %.[1][2] Most commonly, the phrase "alloy steel" refers to "low alloy" steels.

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Home » Stainless Steel » Product introduction

080A42

  • Numbers: 20101221023
  • Model: 080A42, BS970
  • Producers: China
  • Update time: 2010.12.21
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Product Description:

BS970 080A42 is a medium carbon steel with good tensile strength. 080M40 is normally supplied in cold drawn or as rolled and can be heat treated to a reasonbale hardness.

 

 

 

TYPICAL ANALYSIS

 

 

C.

Si.

Mn.

S.

P.

0.42%

0.25%

0.80%

0.015%

0.015%

Tempering:
Heat uniformly and thoroughly at the selected tempering temperatures, between 550°C to 660°C and hold the 080A42 tool at heat for one hour per inch of total thickness.

Normalising:
Normalise 080A42 at 830-860°C, and cool in air.

 

 


Hardening:
Heat uniformly to 830/860°C until heated through. Quench in oil or water. Can also be induction or flame hardened. When 080A42 components made from bright bar are to be induction hardened it is recommended to machine the surface to remove the decarburised skin that may be present to ensure optimum hardness is achieved.

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