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Edging Mill Roll
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<!--StartFragment--><table><tbody><tr><td>Equipped with one of the best alloy spheroidal graphite iron rolls brands, Kaida Roll Group is one of competitive alloy spheroidal graphite iron rolls manufacturers and suppliers in China, welcome to visit our website.<br>Alloy Nodular Cast Iron Rolls (SG)<br>These rolls are characterized by spherical graphite.Its mechanical properties are similar to that of alloy indefinite chilled rolls except that its strength is higher than the latter.They can be produced by static casting.<br>Speaking of static casting, there’re two type of static process<br>No.1, Monobloc Static Cast Roll<br>Definition: &nbsp;&nbsp;<br>-Single pour casting rolls employ the same chemical content, i.e. Barrel and Neck.<br>-To achieve the different requirement of hardness, strength, and metallurgy by the means of controlling the freezing rate of molten iron<br>Material Application:<br>Material:Stands:Hardness:<br>SGPRoughing45 – 50 Shore<br>SGPIntermediate50 – 65 Shore<br>ACS/Steel/Base steelRoughing35 – 45 Shore<br>Base steel/Graphite steelIntermediate/Finishing50 – 55 Shore<br>SGAIntermediate/Finishing63 – 68 Shore<br>SGA/Mo (Heat Treatment)Intermediate/Finishing70 Max Shore<br>NCC (Heat Treatment)Roughing45 – 55 Shore<br>AICFinishing63 – 68 Shore<br>Hi CrIntermediate/Finishing55 - 65 Shore<br>Pros and Cons:<br>Pros:Cons:<br>Low costMax hardness is limited<br>Easy productionStrength of neck is limited<br>Material already existsHardness drop is large<br>Common material<br>Easy machining<br>Large diameter<br>No.2, Composite Static Cast Roll<br> <br>Step 1, molten iron pours into outer shell<br>Step 2, after solidification of outer shell molten iron; add molten iron to the core, the overflow molten iron can be reclaimed.<br>Definition:<br>-The chemical content of barrel work layer is different from core and neck<br>-The properties of this type of rolls depends on chemical content, the cooling rate of both are also critical &nbsp;&nbsp;&nbsp;<br>Pros and Cons:<br>Pros:Cons:<br>Common material applicableHigher cost<br>Max hardness is higherCore material selection limited<br>Hardness drop is smallerNeck strength is limited<br>Chemical Composition %<br>SymbolCSiMnCrNiMoMg<br>SGⅡ2.90-3.600.80-2.500.40-1.200.20-0.60-0.20-0.60≥0.04<br>SGⅣ2.90-3.600.80-2.500.40-1.200.20-0.600.50-1.000.20-0.80≥0.04<br>SGⅤ2.90-3.600.80-2.500.40-1.200.30-1.201.01-2.000.20-0.80≥0.04<br>Prosperities&amp;Application<br>SymbolHardness<br>HSTensile Strength<br>MPaBending<br>Strength<br>MPaDimension<br>MMUnit N.W<br>KGSApplication<br>SGⅡ50-70≥320500-700¢300-1300500-35000Rolls for finish stands of light section mills, bar and wire rod mills, hot narrow strip mills and temper mill.<br>SGⅣ55-70≥320500-700<br>SGⅤ60-70≥320600-800Edging Mill Roll<br>website:http://www.kdroll.com/cast-iron-and-steel-rolls/section-and-rail-mill-rolls/</td></tr></tbody></table>
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