Ductile Iron Roller, Rolling Mill for Casting and Rolling

• Casting Method: Special Casting
• Casting Form Material: Metal
• Casting Metal: Cast Iron
• Casting Form Usage Count: Permanent
• Surface Treatment: Galvanized
• Surface Roughness: Ra0.05
• Model NO.: rm
• Coating: Zinc oxide
• Machining Tolerance: +/-0.15mm
• Standard: GB
• Certification: SGS, ISO 9001:2000
• Transport Package: Steel Frame
• Specification: ISO
• Trademark: Sinya
• Origin: China
• HS Code: 84553000
• Production Capacity: 20000tons/Year

Product Description

Ductile Iron Roller, rolling mill for casting and rolling

Applications: For roughing or finishing stands rolling mill of section mill, wire and rods, bars mills, finishing stands and back up rolls of strip and narrow strip mills,

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Mechanical Property:

Mechanical Property	Centrifugal Castings	Static Castings
Hardness of Body	HSD50-80	HSD40-75
Hardness of Neck	HSD35-48	HSD-32-55
Tensile Srength of Core	>450MPa	>300Mpa

 
Cast Rolls

Roll Type	Max Barrel/Length D/L(mm)	Stands Application
Indefinite Chilled Rolls	1400/4600	Finishing stands
Ductile Iron Rolls	1500/3000	Roughing, Intermediate and finishing stands
Hi-Cr Cast Iron Rolls	1500/4300	Finishing stands
Alloy Steel Rolls	1500/3000	Roughing stands
Adamite Steel Rolls	1800/3000	Roughing and Intermediate stands
Graphite Steel Rolls	1800/3000	Roughing stands
High Speed Street Rolls	1000/3000	Finishing stands

Chemical Analysis:
 

Grade	Hardness (HSD)	C	Si	Mn	Ni	Cr	Mo	Mg	P	S
SGI	40-55	3.2-3.7	1.0-2.5	0.5-1.0		0.2-0.6	0.2-0.6	>0.04	<0.2	<0.03
SGII	55-70	3.2-3.7	1.2-205	0.5-1.0		0.2-0.6	0.2-0.6	>0.04	<0.2	<0.03
SGIV	48-70	3.2-3.7	1.0-2.5	0.5-1.0	0.5-1.0	0.2-0.6	0.2-0.6	>0.04	<0.2	<0.03
SGV	48-70	3.2-3.7	1.0-2.5	0.5-1.0	1.0-3.0	0.3-1.2	0.2-0.8	>0.04	<0.2	<0.03
SGVI	42-52	2.9-3.5	1.5-2.4	0.4-0.8	1.0-2.5	0.1-0.5	0.4-0.8	>0.04	<0.2	<0.03
SGVII	55-75	2.9-3.5	1.5-2.4	0.4-0.8	2.5-.5	0.1-0.5	0.4-1.0	>0.04	<0.2	<0.03