INFLUENCE OF PROCESS PARAMETERS ON FRICTION COEFFICIENT OF HIGH
The effects of carbides on crack behaviors in high-vanadium high-speed steel and high-chromium cast iron rolls under cold rolling condition are studied by using scanning electron microscope and … Expand
EN-HiCr Iron
EN-HiCr IronRolls. Enhanced High Chromium Iron is widely used in early finishing stands of hot strip mills.The microstructure consists of a tempered bainitic/ martensitic matrix with Cr7C3 carbides and MC type carbides …
Fracture Analysis of High Chromium Cast Iron Roll on CSP …
A roll barrel breakdown accident took place on CSP mill. After investigating of the accident scene and the roll service condition, analysing the barrel fracture and sampling tests, proved that main cause for the roll breakdown was unusual and there appeared a strip-like crack on the boundary layer resulting from the initial flaws extending along the roll circle …
The effect of raw materials on the structure and hardness of high …
Figure 3 shows the cooling curve of two high chromium cast iron roll materials after being austenitized at 1020 ℃ for 0.5 h and then cooled to room temperature at cooling rates of 10, 3, and 1 ...
(PDF) MICROSTRUCTURE AND PROPERTIES OF HIGH CHROMIUM …
In order to improve the hardness of semisolid hypereutectic high chromium cast iron by adding boron element, the effect of different boron contents on the microstructure and properties of the 4 ...
High-Chromium Cast Iron
Cast Iron. Ramesh Singh, in Applied Welding Engineering (Second Edition), 2016. High-Chromium Cast Irons (Ni-Hard) These are essentially white cast irons alloyed with 12% to 18% chromium and are popularly known in the industry as Ni-hard.Chromium imparts abrasion resistance and prevents oxidation.
High Chromium Cast Steel Rolls (HCr steel)
High Chrome Steel is primarily composed of iron, carbon, and chromium. The high chromium content enhances the material's hardness, corrosion resistance, and …
work roll
material: special improved high chromium iron. application mill: hot rolling mill work roll. mechanical properties: LMM GROUP. Founded in 2007, LMM GROUP mainly produces …
(PDF) An Overview on Types of White Cast Irons and High Chromium White
The paper is aimed to give an overview on the white cast iron alloys, and particularly high chromium white cast iron alloys, including their classifications, their standard specifications in USA ...
Chromium Steel Casting | Wear Parts For Industry
Qiming Casting manufactures kinds of chromium steel casting parts for quarrying, mining, and cement industry, which include: impact crusher blow bars, VSI crusher wear parts, and Cr-Mo alloys mill liner.
Unleashing the Power of High Chrome Steel: A …
High Chrome Steel is primarily composed of iron, carbon, and chromium. The high chromium content enhances the material's hardness, corrosion resistance, and wear resistance. Other alloying elements, such as manganese, molybdenum, and vanadium, may be added to further enhance its properties.
High-speed steel roll
Founded in 2007, LMM GROUP mainly produces all kinds of metallurgical rolls for various types of steel, bar, high-speed wire and strip hot and cold plate and strip rolling mills. cast steel rolls manufacturer
Influence of adding Nb on oxidation resistance of hypoeutectic high
In this paper, the effect of different Nb contents on the oxidation properties of high-chromium cast iron was investigated by adding different contents of Nb to high-chromium cast iron in an attempt to provide an effective reference for improving the performance of high-chromium cast iron rolls and optimizing the service life of high …
High Temperature Oxidation of a Work Roll Grade High-Chromium …
High-chromium white cast iron is a common material for the manufacture of the work rolls used in the finishing stands in hot strip mills. The high temperature oxidation behaviour of as-cast and heat-treated high-chromium white cast iron was studied by gravimetric means at 650 °C in atmospheres that included dry air and a mixture of dry …
High hardness and toughness of white cast iron: The …
The considerable M 7 C 3 chromium carbides in high-chromium white irons provide excellent wear resistance. The usual production route is casting. In cast hypoeutectic iron, a coarse network of eutectic carbides of the M 7 C 3 type is formed during solidification and leads to poor fracture properties [3], [5].
work roll
Brand name: LMM GROUP Packing Details : Wooden box with fumigation ... special improved high chromium iron. application mill: hot rolling mill work roll. mechanical properties: ... The trial data shows that the ∮370mm high-speed steel roll produced by LMMGROUP has far exceeded the single-groove assessment value of 1,500 tons in the …
Hot friction and wear behaviour of high speed steel and high chromium …
The wear resistance at high temperature of different high speed steels (HSS) for rolls is evaluated on the basis of a tribological test aimed at reproducing the damage mechanisms occur during hot rolling. The test is positively used to highlight the different wear and friction behaviour of high speed steels and high chromium irons to …
high speed steel roll (HSS ROLLS)
Effect: Compared with traditional ductile iron rolls and high-nickel-chromium rolls, high-speed steel rolls have higher steel passing per groove (times) due to their good wear resistance, which saves roll changing time, improves rolling mill operation rate, reduces roll consumption, and reduces production. cost, and improve the overall efficiency of the …
Chilled cast iron roll manufacturer in india
Looking for a Chilled Cast Iron Roll manufacturer in India? LMM GROUP is a leading manufacturer of high-quality chilled cast iron rolls, designed for durability and performance across various industrial applications.
Hot friction and wear behaviour of high speed steel and high chromium …
The wear resistance at high temperature of different high speed steels (HSS) for rolls is evaluated on the basis of a tribological test aimed at reproducing the damage mechanisms occur during hot ...
work rolls in china
High-Chromium steel rolls; Semi – steel rolls; Graphite steel rolls; Centrifugal cast iron rolls ... Brand name: LMM GROUP Packing Details : Wooden box with fumigation or ... The trial data shows that the ∮370mm high-speed steel roll produced by LMMGROUP has far exceeded the single-groove assessment value of 1,500 tons in the "Roll ...
Oxide Structures Formed During the High Temperature
In this investigation, the surface structures formed after the isothermal oxidation of high chromium white cast iron and a high speed steel work rolls are presented. The morphology and the chemical characteristics of the oxides are explained in terms of both, the chemical composition of the alloys and the components of the oxidant …
High Chromium Cast Iron: Part One | Total Materia
Explore the properties of high-chromium white iron, its applications in industries requiring exceptional wear and corrosion resistance, and the impact of heat treatment on its hardness and microstructure. Learn about the optimal heat treatment for this cast iron.
High Chromium White Cast Iron (High Cr White Iron)
High chromium white cast iron, or high Cr white iron, stands as a remarkable material due to its exceptional wear resistance, high toughness, and corrosion resistance. The unique combination of properties makes it a preferred choice for various industries, including mining, cement, power generation, and more.
Supply High Chromium Cast Iron Roll Wholesale Factory
High Chromium Cast Iron Roll Manufacturers and Factory. We accept OEM custom products all made in China.
Unleashing the Potential of High Chrome Casting
High chrome casting is a specialized form of cast iron that contains a high percentage of chromium, typically ranging from 12% to 30%. This alloyed composition …
Deformation behavior of high-chromium cast iron / low …
In this study, the hot deformation behavior of high-chromium cast iron (HCCI)/low-carbon steel laminates during hot rolling was studied via finite element simulation and experimentation.
Case Studies in Engineering Failure Analysis
iron work rolls generally contain very high level of chromium (typically about 16–18%) as a high fraction of chromium carbides is desired to achieve a good wear resistance.
Hot friction and wear behaviour of high speed steel and high chromium …
Semantic Scholar extracted view of "Hot friction and wear behaviour of high speed steel and high chromium iron for rolls" by M. Pellizzari et al.
Wear resistance of high chromium white cast iron for …
2.1. High-chromium white cast iron characteristics High-chromium white cast irons are ferrous alloys containing 11-30% Cr and 1.8-3.6% C along with variable amounts of molybdenum, manganese, copper and nickel [1]. The standard procedure most commonly used for the classification of this kind of cast iron alloy is ASTM A532-10 (2014).
High speed steel roll VS traditional high chromium …
At present, high-speed steel rolls have been widely used in hot-rolled strip mills to replace high-chromium cast iron rolls, which greatly prolongs the service life of rolls. There are many differences …
Failure of high-chromium iron roll in compact strip production MILL
A high chromium (HiCr) iron work roll broke in three pieces in finishing stand 4 in a compact strip production (CSP) mill of a steel company. This roll breakage was examined by means of visual inspection, analysis of the mill process data, and chemical and microscopic analysis of a sample from the spheroidal graphite (SG) iron roll core.
What Are HSS Rolls?
Compared with turning rolls made of other materials, high-speed steel rolls have excellent wear resistance. Compared with high-chromium cast iron and high-nickel-chromium infinitely chilled cast iron turning rolls, the roll consumption of high-speed steel rolls is obviously lower under the same rolling conditions.