The rare earth alloy wear resistant reducer is engineered to provide exceptional durability and wear resistance, making it an ideal choice for demanding applications.
Download PDFA rare earth alloy wear resistant reducer is a specialized pipe fitting designed to transition between different pipe diameters while offering enhanced protection against wear and corrosion. Constructed from high-strength steel alloyed with rare earth elements, this reducer is built to withstand harsh operating conditions commonly found in various industrial applications.
The material of Rare earth alloy coal mill spiral tube contains various alloy elements such as Cr, Ni, Mo, W, V, Cu, etc. It not only has high hardness, corrosion resistance, certain mechanical properties, but also has good performance at room temperature. excellent welding performance, with cuttability and the possibility of on-site drilling.This process can avoid pores, slag inclusion, loose assembly and large deformation. and other common casting defects, the material composition is based on the original FeCr, FeMn, Ni, Re, FeSi and other alloy materials, and ferrovanadium (FeV), ferroniobium (FeNb), copper (Cu) are added, so that the material has both high alloy The wear resistance of casting has high mechanical strength and impact resistance, and at the same time improves the weldability of the material. Rare earth alloy wear-resistant elbows are used in coal grinding systems, pulverizing systems, slag and ash removal systems, heavy medium coal washing systems, and slag transportation pipelines in metallurgical systems.
Rare earth alloy wear – resistant tube is badly worn parts, such as pipe, elbow, reducer, and water intake place such as the model of integral casting, then mechanical processing method, especially the outer wear parts, especially in the elbow to the outer diameter change circle method is adopted to carry on the design, local thickening severe wear parts, but also according to various requirements, produce all kinds of irregular switch pipe fittings to meet the design requirements, straight tube is using centrifugal casting.Rare-earth wear-resistant alloy containing Cr, Ni, V, Mo, W, a variety of alloy element such as Cu, it not only has high hardness, but also has certain mechanical properties, at room temperature with good welding performance, and can be cut and the possibility of opening, also has certain corrosion resistance.
Rare earth alloy wear resistant reducers are versatile and can be utilized in various sectors, including:
The use of anti-off porcelain tube, porcelain tube mosaic, so that paste more flat, more solid with a strong inorganic adhesive paste, wear-resistant steel bowl welding, porcelain and steel body combined to form a double reinforcement to ensure that the porcelain tube does not fall off.
The installation of flexible, high wear resistance, processing convenience, the cost is moderate.
Rockwell hardness of high alumina ceramics is up to HRA80-90 which is second only to diamond and far exceeds wear-resistant steel stainless
The wear resistance of high alumina ceramics is 266 times that of manganese steel and 171.5 times that of high chromium cast iron. According to our investigation & follow-up to the clients, the service life of equipment can be prolonged over 10 times under the same working conditions.
Working temperature of high alumina ceramics can be as high as 1400℃.
High alumina ceramics have the properties of self-lubricity and in adhesion, the roughness is only 1/6 that of steel pipes thus less flow Resistance.
Thick-walled and shaped seamless steel tubes are our advantage products which can be customized according to customers' needs
The density of high alumina ceramics is about 3.6g/cm3, which is only half that of steel, thus easy for construction and installation.
The addition of these alloying elements gives ZG40CrMnMoNiSiRe improved strength, toughness, and corrosion resistance compared to standard carbon steels. It also has good weldability and can be easily machined into different shapes and sizes.
ZG40CrMnMoNiSiRe is designed to operate in extreme conditions, such as high temperatures and pressures, making it suitable for use in boiler tubes, heat exchangers, and other high-temperature applications. It is also resistant to corrosion and creep, which makes it ideal for use in harsh environments.
Overall, ZG40CrMnMoNiSiRe is a specialized steel grade that offers many benefits for high-temperature and high-pressure applications, but may not be suitable for all applications due to its specific alloying elements and properties.
| Grade | C | Cr | Mn | Mo | Ni | Si | S | P | Re |
|---|---|---|---|---|---|---|---|---|---|
| ZG40CrMnMONiRe (JM6a) | 0.35-0.42 | 1-1.14 | 1-1.14 | 0.3-0.6 | 0.5-0.8 | 0.8-1.2 | ≤0.04 | ≤0.04 | ≤0.02 |
The composition, design of medium carbon alloy, rare earth wear-resistant steel adopts medium carbon multi-alloy system to ensure that the material maintains comprehensive performance indicators. Combining the characteristics of our country's resources, this material adopts a small amount of multi-element alloy body, and adds FeV, FeNb, Cu and other multi-alloy elements on the basis of the original alloy materials FeCr, FeMn, Ni, Re, FeSi, etc., to ensure the performance of the product.
The mechanical properties adopt perfect testing methods to ensure the stability of material properties.
| Grade | Tensile strength σb MPa | Impact ak j/cm2 | Hardness HRC |
|---|---|---|---|
| ZG40CrMnMoNiRe(JM6a) | ≥860 | 30 | ≥40 |
The wear and tear of rare earth alloy is a phenomenon of material loss caused by relative motion between objects.
Rare earth wear-resistant alloy steels / steeled tube wear-resistant materials can resist wear and prolong the life of the product. Mainly divided into single metal pipe and composite pipe. According to the shape can be divided into straight pipe, elbow, tee, four-pass, reducer, Fangyuan section and other special-shaped tubes. Surface Quality requirements : the internal and external surface of the pipeline should be smooth and smooth, no burrs, burrs, sticky sand, more meat or lack of meat, no cracks, loose, stomata or bubbles. Rare earth wear-resistant pipe, is in the area of serious wear, such as elbow, reducer, suction nozzle, such as the use of the model as a whole casting, especially in the outside of the elbow wear particularly significant parts, the external diameter of the method to change the center of the design, so that the wear serious parts of the local thickening, but also according to various requirements, Make a variety of irregular shaped pipe fittings to meet the design requirements, straight pipe is centrifugal casting. Second, the rare earth wear-resistant alloy containing CR, Ni, Mo, W, V, Cu and many other alloy elements, it not only has a high hardness, but also has a certain mechanical properties, at room temperature with good welding performance, and has the possibility of cutting and on-site openings, but also has a certain corrosion resistance. In the actual use of the process, whether it is in the steel slag pipe, or in the coal preparation plant, such as the use of washing pipes have achieved very good results, in the same conditions compared with high manganese steel, the unit wear is about 1/5 of the higher manganese steel, the service life is high manganese steel 4-5 times, elbow and branch pipe can be used with seamless pipe fittings, installation, maintenance more convenient. High strength and low alloy rare earth heat-resisting and wear-resisting steel pipe parts are suitable for coal conveying, powder feeding, ash discharging pipeline and coal preparation plant transportation pipeline in thermal power plant boiler system.
ZG40Cr8MnMoNiSiRe is the latest rare earth alloy wear-resistant material developed by our factory on the basis of the original rare earth alloy. By increasing the content of Cr in the rare earth alloy, the wear resistance of the rare earth alloy is greatly increased. ZG40Cr8MnMoNiSiRe now is instead of ZG40CrMnMoNiSiRe to produce rare earth metal wear resistant pipe and fittings.
ZG40Cr8MnMoNiSiRe is a type of high-strength low-alloy steel (HSLA) that is commonly used in the manufacturing of heavy machinery and equipment components.
According to Sunny Steel, including ZG40Cr8MnMoNiSiRe, are designed to provide improved mechanical properties and greater resistance to corrosion and wear compared to traditional carbon steels.
The chemical composition of ZG40Cr8MnMoNiSiRe includes chromium (Cr), manganese (Mn), molybdenum (Mo), nickel (Ni), silicon (Si), and rare earth elements such as cerium (Ce) and dysprosium (Dy). The specific amounts of each element are controlled within certain limits to ensure consistent mechanical properties.
ZG40Cr8MnMoNiSiRe is often used in applications that require high strength and toughness, such as heavy-duty construction equipment, mining machinery, and power generation equipment. The alloy's excellent wear and corrosion resistance also make it suitable for use in harsh environments, such as those encountered in offshore drilling and marine applications.
| No. | Grade | C | Mn | Si | Cr | Ni | Mo | W | V | Nb | Cu | Re | N | S | P |
| 1 | ZGCr20Mo3Ni3Re | 2.50/3 | 1.50/2 | 0.80/1.2 | 18.0/23 | 2.50/3 | √ | 1.20/1.5 | √ | ≤0.06 | ≤0.06 | ||||
| 2 | ZGCr28Mo3Ni3Re | 2.80/3.3 | 1.50/2 | 1.80/1.2 | 25.0/300 | 2.80/3.3 | √ | 1.80/2.3 | √ | ≤0.06 | ≤0.06 | ||||
| 3 | ZGCr15Mo3Re | 2.60/3.2 | 1.20/1.6 | 1.0/1.5 | 12.0/16 | √ | 2.50/3 | 1080/1.2 | √ | ≤0.04 | ≤0.05 | ||||
| 4 | ZGCr25Ni4Si2Re | 0.35/0.45 | 0.80/1.2 | 1.20/1.6 | 23.0/26 | 3.50/4.5 | √ | √ | ≤0.035 | ≤0.045 | |||||
| 5 | ZGCr15Mo2Re | 1.80/2.2 | 0.80/1.2 | 1.0/1.5 | 14.0/18 | √ | 2.0/2.5 | 0.80/1.2 | √ | ≤0.04 | ≤0.05 | ||||
| 6 | ZG40CrMnMoNiSiRe | 0.40/0.5 | 1.20/1.6 | 1.50/2 | 1.10/1.6 | 1.0/1.5 | √ | √ | √ | √ | ≤0.035 | ≤0.04 | |||
| 7 | ZG40Cr5Ni3MoVWRe | 0.35/0.45 | 0.80/1.2 | 1.20/1.6 | 23.0/26 | 2.50/3.5 | √ | √ | √ | √ | ≤0.045 | ≤0.055 | |||
| 8 | ZG50Cr18Ni4MoVWCuRe | 0.45/0.6 | 1.0/1.4 | 1.50/2 | 16.0/20 | 3.50/5 | √ | √ | √ | 0.40/0.6 | √ | ≤0.35 | ≤0.35 | ||
| 9 | ZGCr25Ni2Mo2WVCuRe | 0.40/0.6 | 0.80/1.2 | 1.20/1.6 | 23.0/v | 1.50/2.5 | √ | √ | √ | 0.20/0.4 | √ | ≤0.035 | ≤0.035 | ||
| 10 | ZG40Cr25Ni6MoWVCuRe | 0.35/0.45 | 1.2/1.6 | 1.50/2 | 23.0/26 | 5.0/7 | √ | √ | √ | √ | √ | √ | ≤0.35 | ≤0.045 | |
| 11 | ZG90CrMn13MoSiVRe | 0.40/1.3 | 11.0/14 | 0.30/0.8 | √ | √ | ≤0.04 | ≤0.04 | |||||||
| 12 | ZGCrMu10MoSiVRe | 1.0/1.2 | 8.0/11 | 0.30/0.8 | √ | √ | ≤0.04 | ≤0.04 | |||||||
| 13 | ZGW5Cr4Re | 2.50/3.5 | 1.5/1 | 0.50/1 | 35.0/4.5 | √ | √ | ≤0.10 | ≤0.15 | ||||||
| 14 | ZGCr25MoRe | 2.30/3 | 0.50/0.9 | 0.30/0.6 | 23.0/28 | √ | √ | ≤0.06 | ≤0.10 | ||||||
| 15 | ZGCr15MoRe | 3.0/3.5 | ≤1.0 | 0.15/1 | 15.0/18.6 | 2.80/3.3 | √ | ≤0.06 | ≤0.10 | ||||||
| 16 | ZG30CrMnSi | 0.27/0.33 | 1.30/1.5 | 1.20/1.5 | √ | √ | √ | ≤0.03 | ≤0.04 | ||||||
| 17 | ZG40CrNiRe | 0.28/0.43 | 1.10/1.4 | 0.80/1 | √ | √ | √ | ≤0.06 | ≤0.10 | ||||||
| 18 | ZG33Cr13Ni4Re | 0.30/0.35 | ≤0.80 | ≤0.60 | 12.0/14 | 4.0/4.5 | √ | √ | ≤0.06 | ≤0.10 | |||||
| 19 | ZG40CrSiN | 0.35/0.45 | 1.0/1.5 | 1.50/2 | √ | √ | ≤0.04 | ≤0.08 |
Note: All content in this article is for reference only.
| temperature ℃ |
Abrasive wearmg/g | hardness HRC |
Tensile strengthN/mm² | Impact toughness J/cm² |
|---|---|---|---|---|
| ≤300 | 0.021 | ≥63 | 890 | 5 |
| ≤350 | 0.033 | ≥56 | 910 | 6 |
| ≤350 | 0.042 | ≥45 | 910 | 6 |
| ≤400 | 0.069 | ≥42 | 960 | 6 |
| ≤400 | 0.039 | ≥48 | 920 | 7 |
| ≤400 | 0.064 | ≥40 | 950 | 7 |
| ≤400 | 0.069 | ≥36 | 910 | 8 |
| ≤400 | 0.036 | ≥42 | 1040 | 8.5-10 |
Note: All content in this article is for reference only.
No.：ZG40CrNiMoMnSiRe
Hardness：HTC≥40
Abrasion resistant pipe using steel skeleton packaging, and the two ends of the pipe with plastic head, to prevent dust and rain into the pipeline inside, to ensure the beauty of the product.
The wear and tear of rare earth alloy is a phenomenon of material loss caused by relative motion between objects.
Rare earth alloy wear-resistant pipe is produced by horizontal centrifugal casting, in which the smelted liquid metal is passed through the pouring riser and diverted into the rotating mold barrel (the speed of the mold barrel is generally 800-1000 rpm), under the action of centrifugal force A casting method for filling and solidifying into a casting. The horizontal centrifugal casting machine is used for casting various tubular castings and various carbon steel, alloy steel pipes and double-layer steel rolls that require different compositions of inner and outer layers.
Liquid metal can form a hollow cylindrical free surface in a mold without a core. In the production process, the casting process is greatly simplified, with high productivity and low cost. Under the action of centrifugal force, the metal liquid improves the ability of metal to fill the mold, so some alloys and thin-walled castings with poor fluidity can be produced by centrifugal casting.
Due to the centrifugal force, casting defects are improved, shrinkage holes (shrinkage porosity), pores, inclusions and other defects are reduced, and the mechanical properties are improved. Because centrifugal casting has no riser runway, etc., the utilization rate of metal is improved.
Rare earth wear-resistant alloy pipe material has strong anti-wear performance, so when choosing rare earth alloy wear-resistant pipe, higher wear resistance is required, how to improve it?
Ceramic lined pipe is made through self-propagating high-temperature synthesis (SHS) technique.
Cast basalt lined steel pipe is composed by lined with cast basalt pipe, outside steel pipe and cement mortar filling between the two layers.
Ceramic tile lined pipes have very uniform coating of specially formulated ceramic material that is affixed to the inner of the pipe.
The material of the rare earth alloy wear-resistant pipe is ZG40CrMnMoNiSiRe, which is also the grade of rare earth alloy steel.
Tubes Erosion Shields are used to protect boiler tubing from the highly erosive effects of high temperatures and pressures thereby greatly extending tube life.
The ASTM A213 T91 seamless tubes are primarily used for boiler, superheater, and heat-exchanger.
