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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 » Tool Steel » Product introduction

BS4659 BM2 High-Speed Steel

  • Numbers: 2011030812
  • Model: BS4659 BM2
  • Producers: China
  • Update time: 2011.03.08
  • Browse:

Product Description:

High Speed Steel

BS4659 BM2 High Speed Steel

BS4659 BM2 is a general purpose high speed steel. M2 high speed steel offers good wear resistance with excellent toughness and cutting power.

TYPICAL ANALYSIS

 
 
C.
Cr.
Mo.
W.
V.
0.83%
4.10%
5.00%
6.40%
1.90%

 

Forging: 
The forging temperature for high speed steels is 1050°/1150°C. Do not charge direct into the high temperature part of the furnace, but pre-heat slowly to 850°/900. The heat should then be increased more quickly to the forging temperature. If, during the forging, the temperature of the material drops below 880/900°C, re heating will be necessary. Cool very slowly after forging.

Annealing: 
Annealed at 850°C. Soak thoroughly at this temperature and furnace cool.  

Hardening:
Pre heat slowly to 840°C/860°C and thoroughly soak. Continue heating to the final hardening temperature of 1230/1250°C and allow the component to be heated through. Quench in oil or cool in air. Great care must be take not to allow the tools to remain too long at the hardening temperature.  

Tempering: 
Heat uniformly and thoroughly at the selected tempering temperature and hold for at least two hours (one hour per inch of total thickness). Double tempering of M2 high speed steel is essential with intermediate cooling to room temperature between tempers.

 

Tempering °C

    500

    550
    600
   650
HRc
 64
 65
 64
 61

Special Steel classification:

Stainless steel,Hi-Steel HSLA-80,Steel mould,Heat resistant steel,Tool steel,Ball bearing steel,Spring steel,Alloy steel,Construction steel,Die steel,Mould steel.

Product description:

Step Shaft BS4659 BM2 Tube BS4659 BM2 Pie-shaped BS4659 BM2 Ring BS4659 BM2 Module BS4659 BM2 Large valves of the main BS4659 BM2 Other Profiled forgings FV520B

Products Introduction  :

Specialized and high quality steel.

We have the advantages of equipment, technologies and price.

Specifications

Round bar :
Diameter : 1mm-2000mm

Square bar:
Size: 50mm * 50mm-600mm *600mm

Plate steel/flat bar:
Size:Thickness:0.1mm-800mm Width:10mm to 1500mm

Tube/pipe:
Size:OD:6-219mm  WT:1-35 mm.

Cold-rolled sheet:Thickness:2-5mm Width:1000mm Length:2000mm

Hot-rolled sheet:Thickness:6-80mm Width:210-610mm

Length: We can supply any length based on the customer's requirement.

Forging/hot rolling/ extrusion of steel.

Forging: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes

Finished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement

Surface conditions: scaled (hot working finish)/ground/rough machining/fine machining/based on the customer's requirement

Furnaces for metallurgical processing: electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.

Ultrasonic inspection: 100% ultrasonic inspection for any inperfections or based on the customer's requirement

Excellent service for all kinds of industries,with advantages of technologies, equipment and price.

We serve you with our honesty, integrity, and professionality.

Stainless Steel Suppliers | Hi-Steel HSLA-80 | Steel mould | Heat resistant steel | Tool Steel | Ball bearing steel | Spring steel | Alloy

Copyright 2003 - 2011 China longhai special steel Co., LTD is mainly engaged in all kinds of stainless steel 630 production, wholesale, retail enterprises

TEL:+86-15328239557 | FAX:+86-816-3639422 | E-mail:sales@specialsteel-jy.com | Add:119#,Jiangdong road, Sanhe Town,Jiangyou City, Sichuan Province, China | Zip:621701