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Dalian Horton International Trading Co., Ltd

    

Sell Centrifugal Casting Acicular Spheroidal Graphite Rolls and Ring


[China]
Posted Date: October 21, 2009    Expiry Date: November 21, 2009
 |  Rate this company
   
Description
::Application
Various types of continuous rough intermediate and finish mills for processing bars, sections and strips. Used as

the secondary finishing and back rolls. Also suitable for use on stainless-steel strip hot mills.
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::Description
This grade is stronger and more wear resistant than SG Pearlitic iron and capable of much higher hardness levels.

The enhanced properties are the result of increased Nickel, Chromium and Molybdenum ***** also has 3% to 3.4%

carbon content alloyed with the nickel, manganese and molybdenum which forms the nodular cast iron with a bainitic-

acicular-martensitic *****-continuous carbides maintain the wear resistance while at the same time exhibiting

high strength and resistance to firecracks. All rolls are specially molded and the final portion of the extensive

heat treatment procedure develops an acicular matrix.A special grade has been introduced:SGA grades alloyed with Cr

to achieve a deep penetration of carbides. These grades have a lower hardness drop, better wear resistance

properties, and is recommended for rolls with deep grooves.

__________
::Properties
Thanks to its higher content of Ni and Mo alloys, pearlite, basinite and martensite matrixes with excellent

performance are produced. The graphite si spherical form, demonstraing good heat transfer property and high tensile

strength. Through changing the struture into basinite of marensite matrix, chemical compostion of needly-like

spherical iron of heat treatment, a dense reticular primary cementite with high wear-resistance is produced

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Mechanical Properties Centrifugal Method Conventional
Hardness of roll surface HSD50-85 HSD45-80
Hardness of roll collar HSD35-48 HSD35-55
Tensile strength of core ≥400MPa ≥300MPa
________________________________________________________________________

::Chemical Composition of shell
C Si Mn Ni Cr Mo Mg
3.0/3.5 1.5/2.0 0.4/1.0 3.0/4.5 0.2/1.2 0.6/1.0 ≥0.04
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Other Information
Location:  China 
Minimum Order:   
Price for Minimum Order:   
  (This price is only for minimum order. for large quantities, please contact)
Sample Available:  NO 
Related Categories: Metallic Processing Machinery
Related Products: acicular roll, spheroidal graphite roll »
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