Leon Roll China co.,ltd

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Product Detail
High Speed steel Rolls
Code : 580315
Series : roll mill
Spec : dia250-1000
Material : steel
Color : steel
Brand : China
Model : cast steel
Dollar/KG :
4.00
Original : 0.00
Detail
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Specifications

1)centrifugal casting
2)ISO9001-2008
3)casting spare part for rolling mill
4)for finising stand
5)good preformance

Centrifugal casting high speed steel roll

1,Features

The Shell of Centrifugal casting High Speed Steel roll is a high carbon alloy steel containing Cr, Mo, W,V and Nb. The Microstructure consists of complex carbides embedded in a tempered martensitic martrix. Control of the carbon and a complex heat treatment allows the optimization of wear resistance, thermal fatigue resistance and oxide film formation, whilst maintaining low residual stress values.

2,Chemical composition

Material CodeChemical composition(%)

CSiMnWVNiCrMo
HSS1.60~2.300.30~0.90.20~1.801.00~4.002.00~6.000.30~1.503.0~6.03.00~6.00


3,Physical Performance

Material CodeBarrel hardness(HSD)Tensile Strength( Mpa)
HSS75~90≥450


4,Application scope


HSS rolls are mainly used as the work rolls in the hot strip mills and the finishing stands of bar mills; rings of the universal section mills and finishing stands of the high speed bar mills and so on.

5,Hardness

serial numbersurface hardness of barrel roll(HSD)Recommended for
1≥95work roll of pinch pass mill and finishing mill
290~98cold work roll of metal plate and strip
375~90cold work roll of metal plate and strip

barrel roll diameter/mmsurface hardness of barrel roll(HSD)hardening layer hardness/mm


2%Cr3%Cr5%Cr
≤300≥9561515
≤30090~9682020
≤30075~9010____
301~500≥9572025
301~50090~96122530
301~50075~9014____
>500≥9582025
>50090~96132535
>50075~9015____