High chromium cast iron alloy bimetal wear-resistant tube

High chromium cast iron alloy bimetal wear-resistant tube is a kind of special structure wear-resistant pipe, which is composed of outer layer material and inner layer material. The outer layer material has excellent corrosion resistance, and the inner layer material has extremely high wear resistance. This combination of materials can effectively solve the wear resistance and corrosion resistance problems in some special environments.
Inner wear-resistant alloy
The main components of the inner wear-resistant alloy are high chromium cast iron alloy, high chromium white cast iron and high chromium alloy, etc., and its hardness and wear resistance are high, and can be durable for a long time in the working environment of high friction, high impact and high wear.
External corrosion-resistant alloy
The main components of the outer corrosion-resistant alloy are stainless steel, nickel-based alloy and steel-plastic composite material, etc. Their corrosion resistance and acid and alkali resistance are good, and they can be used for a long time in the corrosion environment.
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抗磨白口铸铁 (GB/T 8263-1999) |
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C |
S |
P |
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KmTBNi4Cr2-DT |
2.4-3.0 |
Less than or equal to 0.8 |
Less than or equal to 2.0 |
1.5-3.0 |
Less than or equal to 1.0 |
3.3-5.0 |
Less than or equal to 0.15 |
Less than or equal to 0.15 |
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KmTBNi4Cr2-GT |
3.0-3.6 |
Less than or equal to 0.8 |
Less than or equal to 2.0 |
1.5-3.0 |
Less than or equal to 1.0 |
3.3-5.0 |
Less than or equal to 0.15 |
Less than or equal to 0.15 |
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KmTBCr9Ni5 |
2.5-3.6 |
Less than or equal to 2.0 |
Less than or equal to 2.0 |
7.0-11.0 |
Less than or equal to 1.0 |
4.5-7.0 |
Less than or equal to 0.15 |
Less than or equal to 0.15 |
|
|
KmTBCr2 |
2.1-3.6 |
Less than or equal to 1.2 |
Less than or equal to 2.0 |
1.5-3.0 |
Less than or equal to 1.0 |
Less than or equal to 1.0 |
Less than or equal to 1.2 |
Less than or equal to 0.10 |
Less than or equal to 0.015 |
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KmTBCr8 |
2.1-3.2 |
1.5-2.2 |
Less than or equal to 2.0 |
7.0-11.0 |
Less than or equal to 1.5 |
Less than or equal to 1.0 |
Less than or equal to 1.2 |
Less than or equal to 0.06 |
Less than or equal to 0.10 |
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KmTBCr12 |
2.0-3.3 |
Less than or equal to 1.5 |
Less than or equal to 2.0 |
11.0-14.0 |
Less than or equal to 3.0 |
Less than or equal to 2.5 |
Less than or equal to 1.2 |
Less than or equal to 0.06 |
Less than or equal to 0.10 |
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KmTBCr15Mo② |
2.0-3.3 |
Less than or equal to 1.2 |
Less than or equal to 2.0 |
14.0-18.0 |
Less than or equal to 3.0 |
Less than or equal to 2.5 |
Less than or equal to 1.2 |
Less than or equal to 0.06 |
Less than or equal to 0.10 |
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KmTBCr20Mo② |
2.0-3.3 |
Less than or equal to 1.2 |
Less than or equal to 2.0 |
18.0-23.0 |
Less than or equal to 3.0 |
Less than or equal to 2.5 |
Less than or equal to 1.2 |
Less than or equal to 0.06 |
Less than or equal to 0.10 |
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KmTBCr26 |
2.0-3.3 |
Less than or equal to 1.2 |
Less than or equal to 2.0 |
23.0-30.0 |
Less than or equal to 3.0 |
Less than or equal to 2.5 |
Less than or equal to 2.0 |
Less than or equal to 0.06 |
Less than or equal to 0.10 |
Double metal wear-resistant pipe has the advantages of corrosion resistance, wear resistance, impact resistance, high pressure and high temperature, widely used in mining, metallurgy, electric power, construction, chemical, pharmaceutical, environmental protection and other fields of transmission system. Compared with other wear-resistant pipes, the bimetal wear-resistant pipes has longer service life and lower maintenance cost, which can effectively reduce the number of equipment shutdown and maintenance replacement, and improve production efficiency.
The production process of bimetal wear-resistant pipe generally includes processing, preheating, coating, welding and post-processing steps. The processing of the inner wear-resistant alloy needs special equipment, the outer corrosion-resistant alloy needs a special coating process, and the welding process also needs to be selected according to different materials and wall thickness. In the production process, each process should be strictly controlled to ensure that the quality of the bimetal wear-resistant pipe meets the requirements.
Double metal wear-resistant pipe is a multi-functional, high-performance wear-resistant pipe material, its internal and outer materials combined, with excellent wear resistance, corrosion resistance, impact resistance and high temperature and high pressure characteristics, is the traditional upgrade of wear-resistant pipe products, has a wide range of application prospects in the future.


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