KINGWELL Rolling Mill Roll for the front 3 and 4 finishing racks of continuous strip mill and the post rack rough mill KW-FRG-05 manufacturer from China XI'AN KINGWELL OILFIELD MACHINERY CO.,LTD

KINGWELL Rolling Mill Roll for the front 3 and 4 finishing racks of continuous strip mill and the post rack rough mill

Price:	1000.0 USD
Payment Terms:	T/T,L/C
Place of Origin:	Shaanxi, China (Mainland)


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Product Detail

Model No.: KW-FRG-05

Production Capacity: 1000 per month

Delivery Date: 1~30 days as per quantity

Brand: KINGWELL

Size: ≤Φ1400mm

Application: Oil Well Drilling

Means of Transport: Ocean,Land,Air

Packing: sea worthy packing

Standard: GB/T

Type: Cr2,Cr3,Cr4,Cr5,SHSS

Material: 9Cr2Mo, 86CrMoV7,MC3,MC5,et...

Certification: BV, SGS

Rolling mill roll is an important part of the rolling machine,signed by both parties and other requirements.

Rolling Mill Roll

KW-FRG-05

KINGWELL Rolling Mill Roll Features & Benefits:

Rolling mill roll is an important part of the rolling machine. Under standard (GB / T) or technical agreement signed by both parties and other requirements. We are able to provide complete machining services such as boring, milling, turning, grinding, welding and fabrication. Usually we make it according to your drawing or requirements

KINGWELL Rolling Mill Roll Technical Data:

Name	Specification	Material
Work Roll	Dia. 60~ Dia. 1000mm	9Cr2Mo, 86CrMoV7,MC3,MC5,etc.
Back Up Roll	Dia. 240~ Dia. 1000mm	9Cr2Mo, MC3,MC5,etc.
Intermediate Roll	≤Dia. 1000mm	9Cr2Mo, 86CrMoV7,MC3, etc.
Leveling Roll	Dia. 60~ Dia.1000mm	60CrMoV, H13, 80CrMoV, etc
Table Roll	Dia. 100~ Dia. 1000mm	1035, 1045, C35E, C40E, C45E, etc
Pinch Roll	Dia. 80~ Dia. 1000mm	1035, 1045, C35E, C40E, C45E, etc
Driving Roll	Dia. 80~ Dia. 1000mm	1035, 1045, C35E, C40E, C45E, etc
Cradle Roll	Dia. 80~ Dia. 1000mm	1035, 1045, C35E, C40E, C45E, etc
Guide Roll	Dia. 80~ Dia. 1000mm	1035, 1045, 4150, 4340, 4140, etc
Piercing Roll	Dia. 80~ Dia. 1000mm	1035, 1045, 4150, 4340, 4140, etc
Straightening Roll	Dia. 80~Dia. 900mm	H13,4140,4340,EN9,EN19,EN24,EN31,51200,etc

PROPERTIES

Thanks to its high content of M7C3, type carbide in range of 20-30% and discontinuous network distribution of carbide, the roll offers a high wear resistance performance. The matrix is finely-disseminated secondary carbides (M7C3,M23C5 and M3C types), increasing therefore the wear resistance of roll, The Cr2O3 enriched oxide film on the roll surfaces is highly resistant to oxidization and plastic strain, making the roll extremely suitable for steel hot milling process.

MECHANICAL PROPERTIES
Hardness of shell	HSD65-85
Hardness of core	HSD35-48
Tensile Strength of core	≥450MPa

C	Si	Mn	Cr	Ni	Mo
2.4/3.0	0.4/0.6	0.8/1.2	16.0/20.0	0.8/1.5	0.8/2.0

APPLICATION

Mainly used for the front 3 and 4 finishing racks of continuous strip mill and the post rack rough mill.

Related products:

Alloy Cast Steel Roll

Alloy cast steel roll is made of top-grade molten steel by arc furnace and advanced casting and technology of heating processing with high intensity, excellent thermal cracking resistance, toughness and abrasive resistance, applicable to rough and medium roll of profile steel, rough mill of hot rolled strip steel and supporting roll of hot rolled strip steel. Metallographic structure of roll is made of pearlite or tempered sorbite system.

Mark	C	Si	Mn	Cr	Ni	Mo
AS60A(60CrNiMnMo)	0.55-0.65	0.20-0.60	0.60-2.00	1.40-2.20	≤0.60	0.30-0.60
AS70A(70Mn2)	0.65-0.75	0.20-0.45	1.40-1.80
AS70B(70Mn2Mo)	0.65-0.75	0.20-0.45	1.40-1.80	-		0.20-0.45
AS75(75CrMo)	0.70-0.80	0.20-0.45	0.60-0.90	0.75-1.00	-	0.20-0.60
AS75A(75CrNiMo)	0.70-0.80	0.20-0.70	0.70-1.10	0.80-1.50	0.20-0.80	0.20-0.60
AS75B(75Cr3NiMo)	0.70-0.80	0.20-0.60	0.70-1.10	1.50-3.60	0.40-1.00	0.20-0.80

Chemical Composition

Mark	Hardness(HS)	Tensile strength(Mpa)	Elongation Coefficient(%)	Purpose
AS60A	45-55	＞700	＞8	Rough roll for cogging process of large profile steel with requirement to toughness and abrasive resistance
AS70A	34-44	＞680	＞7	Rough milling machine for medium and small profile steel, rod and wire materials, rough roll and vertical roll for hot rolled strip steel
AS70B	36-46	＞680	＞7
AS75	36-46	＞680	＞6
AS75A	35-55	＞800	＞7
AS75B	40-60	＞800	＞7	Cogging and rough milling, support roll for hot rolled steel

Adamite Rolls

Adamite roll is one kind of rolling materials whose performance is between steel roll and iron roll. It contains Ni, Cr and Mo elements, its matrix contains certain quantity of carbide which is processed with special thermal treatment technique with high abrasive resistance, strong toughness and good thermal resistance, its special characteristics is that there no hardness difference in working layer, applicable to rough milling and initial section of finishing mill for Tandem mill with steel; rough and medium milling of rod and wire milling machine, pre-finishing rack, universal mill, roll collar and roll jacket of cantilever mill.

Chemical Composition

Mark	C	Si	Mn	Cr	Ni	Mo
AD140A	1.30-1.50	0.30-0.60	0.70-1.10	0.80-1.20	0.50-1.10	0.20-0.60
AD160A	1.50-1.70	0.30-0.60	0.80-1.30	0.80-2.00	0.40-1.10	0.20-0.60
AD180-ZVB220	1.70-2.30	0.30-0.80	0.60-1.10	0.60-2.00	0.50-2.50	0.20-0.80

Performance and Application

Mark	Hardness(HS)	Tensile strength(Mpa)	Elongation coefficient(%)	Purpose
AD140A	35-50	500-800	≥1.0	Rough roll for cogging process of large profile steel with requirement to toughness and abrasive resistance
AD160A	40-60	500-800	≥1.0	Rough milling machine for medium and small profile steel, rod and wire materials, rough roll and vertical roll for hot rolled strip steel
AD180-ZVB220	50-60	450-700	≥0.5

Graphitic Steel Roll

Performance of graphitic steel roll is similar to ferrosteel roll, its special characteristic is that there are a little of fine graphite in its structure, it is able to improve the thermal cracking resistance and adherence performance of antioxidant iron, mainly applicable to rough milling or blooming milled rack.

Chemical Composition

Mark	C	Si	Mn	Cr	Ni	Mo
GS140	1.30-1.50	1.20-1.60	0.50-1.00	0.40-1.00	0.50-1.30	0.20-0.60
GS150	1.50-1.70	1.00-1.70	0.60-1.10	0.60-1.00	0.40-1.10	0.20-0.50

Performance and Application

Mark	Hardness(HS)	Tensile strength(Mpa)	Bending strength(%)	Purpose
GS140	36-46	540-800	≥1.0	Rough mill for medium and light profile steel and rod materials, hot rolled strip rough milling, multi-functional roll collar
GS150	40-60	500-750	≥1.0

High-speed Steel Roll

High-speed steel roll has high hardness and abrasive resistance under high

temperature. It is made by centrifuge method; the core part is made of nodular cast iron. Through component and heat treatment technique, the hardness in working layer is able to reach 80-85HSC; matrix in martensite contains V, W, Mo

compound carbide so as to assure the even hardness and aperture abrasion in working layer. This kind of roller is applicable to finishing rack to expand working period and improve surface quality of rolling materials.

Chemical Composition

Location	C	Si	Mn	W	V	Nb	Cr	Ni	Mo	Mg
Working layer	1.6-2.0	0.2-1.0	0.3-1.1	1.5-2.5	4.0-6.0	0.5-1.5	4.0-8.0	0.5-1.5	4.0-6.0
Core part	3.2-3.6	1.9-2.3	0.3-0.7				≤0.20	0.3-0.7	0.2-0.5	≥0.05

Performance and Application

Location	Hardness(HS)	Tensile strength(Mpa)	Elastic modulus(×103Mpa)	Purpose
Working Layer	80-85	700-900	210-240	Working roll for hot rolled strip, finishing rack for altitude pre-finishing and tandem rolled rod

GNV Roll

Roll for rough milling rack needs to be combined with certain characteristics, among of which, some characteristics will be cancelled out by the opposite side, including abrasive resistance, thermal cracking resistance, shock resistance, thermal hardness, thermal strength, etc. Excessive net carbide is able to improve the abrasive resistance, shock resistance which then lower the fracture toughness which then will result in production of thermal cracking under rough milling situations. Therefore, in order to reduce the influence of excessive carbide but also maintain the abrasive resistance, Ni and Mo must be added to let the matrix under bainite/ martensite (acicular) which is more wearable then ordinary matrix in pearlite. The Mo element is also good to improve harness of roll under high temperature.

GNV Roll is made of high alloy materials through special heat treatment, the

content of carbide in the matrix is lower than 5% so as to meet requirement from rough rolling rack.

Chemical Composition

Mark	C	Si	Mn	Cr	Ni	Mo	V
GNV-A	3.00-3.40	2.00-2.50	0.80-1.00	≥0.15	2.50-4.00	0.70-1.00	0.15-0.35
GNV-B	3.00-3.40	1.50-2.00	0.80-1.00	≥0.15	2.50-4.50	0.70-1.00	0.15-0.35

Performance and Application

Mark	Hardness(HS)	Tensile strength(Mpa)	Bending strength(Mpa)	Purpose
GNV-A	40-50	≥510	900-1360	Rough rolling rack for rod and wire materials
				Rough rolling rack for rod and wire materials