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  • Zhejiang haoqiu chemical composition table of commonly used materials
    Classification Brand American Standard National Standard Main Chemical Ingredients % Mechanical Properties Shock Requirements Heat Treatment Process
    C Mn P S Si Ni Cr Mo Cu Ti Other Elements Tensile StrengthRm(Mpa) Yield StrengthRp(Mpa) ElongationA(%) Sectional Shrinkage Z（%） Hardness HB Temperature℃ Single Minimum（J） Average Value（J） Crafts Temperature Cooling method
    Austenitic Stainless Steel F304 S30400 0Cr18Ni9 ≤0.08 ≤2.00 ≤0.045 ≤0.03 ≤1.00 8.00-11.00 18.00-20.00 - - - N:0.10 ≥515 ≥205 ≥30 ≥50 ≤217 - - - Solid Solution 1050-1100℃ Water Cooling
    F304L S30403 00Cr19Ni10 ≤0.03 ≤2.00 ≤0.045 ≤0.03 ≤1.00 8.00-13.00 18.00-20.00 - - - N:0.10 ≥485 ≥170 ≥30 ≥50 ≤200 - - - Solid Solution 1050-1100℃ Water Cooling
    F304H S30409 S30409 0.04-0.10 ≤2.00 ≤0.045 ≤0.03 ≤1.00 8.00-11.00 18.00-20.00 - - - ≥520 ≥205 ≥40 - ≤187 - - - Solid Solution 1050-1100℃ Water Cooling
    F316 S31600 ASTMA182 ≤0.08 ≤2.00 ≤0.045 ≤0.03 ≤1.00 10.00-14.00 16.00-18.00 2.00-3.00 - - N:0.10 ≥515 ≥205 ≥30 ≥50 ≤217 - - - Solid Solution 1050-1100℃ Water Cooling
    F316L S31603 00Cr17Ni12Mo2 ≤0.03 ≤2.00 ≤0.045 ≤0.03 ≤1.00 10.00-15.00 16.00-18.00 2.00-3.00 - - N:0.10 ≥485 ≥170 ≥30 ≥50 ≤237 - - - Solid Solution 1050-1100℃ Water Cooling
    F316H S31609 07Cr17Ni12Mo2 0.04-0.10 ≤2.00 ≤0.045 ≤0.03 ≤1.00 10.00-14.00 16.00-18.00 2.00-3.00 - - ≥515 ≥205 ≥30 ≥50 ≤187 - - - Solid Solution 1050-1100℃ Water Cooling
    F347 S34700 06Cr18Ni11Nb ≤0.08 ≤2.00 ≤0.045 ≤0.030 ≤1.00 9.00-13.00 17.00-20.00 - - - Nb：≥10×C-1.10 ≥515 ≥205 ≥30-40 ≥50 180-220 - - - Solid Solution+Stabilization 1050-1130℃+870-900℃ Water Cooling+Air Cooling
    F321 S32100 06Cr19Ni10 ≤0.08 ≤2.00 ≤0.045 ≤0.03 ≤1.00 9.00-12.00 17.00-19.00 - - 0.50-0.70 ≥515 ≥205 ≥30 - ≤201 - - - Solid Solution+Stabilization 1050-1080℃+870-900℃ Water Cooling+Air Cooling
    F310 S31000 20Cr25Ni20 ≤0.25 ≤2.00 ≤0.045 ≤0.03 ≤1.50 19.00-22.00 24.00-26.00 - - - ≥520 ≥205 ≥40 - ≤187 - - - Solid Solution 1050-1150℃ Water Cooling
    904L N08904 GB/T 20878-2007 ≤0.02 ≤2.00 ≤0.04 ≤0.03 ≤1.00 23.00-28.00 19.00-23.00 4.00-5.00 1.00-2.00 - N：≤0.10 ≥490 ≥215 ≥35 - ≤150 - - - Solid Solution 1100-1150℃ Water Cooling
    Martensitic Stainless Steel F6A/410 S41000 1Cr13 ≤0.15 ≤1.00 ≤0.04 ≤0.03 ≤1.00 ≤0.50 11.50-13.50 - - - ≥585 ≥380 ≥18 ≥35 167-229 - - - Normalizing+Tempering 980-1010℃+675-690℃ Air Cooling
    Duplex Stainless Steel F51/2205 S31803 022Cr22Ni5Mo3N ≤0.03 ≤2.00 ≤0.30 ≤0.02 ≤1.00 4.50-6.50 21.00-23.00 2.50-3.50 - - N:0.08-0.20 ≥620 ≥450 ≥25 ≥45 ≤260 -50 35 45 Solid Solution 1050-1130℃ Water Cooling
    F52 S32950 00Cr25Ni5MoN ≤0.03 ≤2.00 - - - 3.50-5.20 26.00-29.00 1.00-2.50 - - N:0.15-0.35 ≥620 ≥450 ≥25 - ≤310 - - - Solid Solution 1050-1130℃ Water Cooling
    F53/2507 S32750 022Cr25Ni7Mo4N ≤0.03 ≤1.20 ≤0.035 ≤0.02 ≤0.80 6.00-8.00 24.00-26.00 3.00-5.00 ≤0.50 - N:0.24-0.32 ≥730 ≥515 ≥15 - ≤310 - - - Solid Solution 1050-1130℃ Water Cooling
    F55 S32760 022Cr25Ni7Mo3.5WCuN ≤0.03 ≤1.00 - - ≤0.60 6.00-8.00 24.00-26.00 3.00-4.00 0.50-1.00 - N:0.20-0.30 W:0.50-1.00 750-895 ≥550 ≥25 ≥45 ≤272 - - - Solid Solution 1050-1130℃ Water Cooling
    F60 J93404 022Cr22Ni5Mo3N ≤0.03 ≤2.00 ≤0.030 ≤0.02 ≤1.00 4.50-6.50 22.00-23.00 3.00-3.50 0.50-1.00 - N:0.14-0.20 ≥655 ≥450 ≥25 ≥45 250-350 - - - Solid Solution 1050-1130℃ Water Cooling
    Ferritic Stainless Steel A3 A30352 0Cr18Ni9 ≤0.26 0.80-1.20 ≤0.04 ≤0.05 0.15-0.40 - - - - - 400-550 ≥235 ≥26 ≥27 120-160 - - - Normalizing 850-920℃ Air Cooling
    A105 G105N00 GB/T12228-2006 ≤0.35 0.60-1.05 ≤0.04 ≤0.05 ≤0.35 ≤0.40 ≤0.30 ≤0.12 ≤0.40 - ≥485 ≥250 ≥22 ≥30 ≤187 - - - Normalizing 910-930℃ Air Cooling
    LF2 NO8800 GB/T3618-1989 ≤0.30 0.60-1.35 ≤0.035 ≤0.04 0.15-0.30 ≤0.40 ≤0.30 ≤0.12 ≤0.40 - V:≤0.08 485-655 ≥250 ≥22 ≥30 ≤197 -46 20 27 Normalizing+Tempering 870-940℃+600-650℃ Air Cooling
    45#钢 C45E4 GB/T699 0.42-0.50 0.50-0.80 ≤0.035 ≤0.035 0.17-0.37 - ≤0.25 - - - ≥600 ≥355 ≥16 ≥40 ≤197 - - - Normalizing 850℃ Air Cooling
    Nickel-based Alloy Monel 400 NO4400 GB/T 20878-2007 ≤0.30 ≤2.00 - ≤0.024 ≤0.50 ≥63.00 - - 28.00-34.00 - ≥483 ≥195 ≥35 - 135-180 - - - Solid Solution+Aging 980-1040℃+540-650℃ Water Cooling+Air Cooling
    Monel -K500 NO5500 GB/T6270-2009 ≤0.25 ≤1.50 - ≤0.01 ≤0.50 ≥63.00 - - 27.0-33.0 0.35-0.85 ≥965 ≥690 ≥20 ≥20 266-325 - - - Solid Solution+Aging 870-980℃+595-605℃ Water Cooling+Air Cooling
    INCONEL 600 N06600 NS312 ≤0.009 ≤1.00 ≤0.02 ≤0.01 ≤0.05 ≥72.00 14.50-17.50 14.00-17.00 - 0.70 Co：2.00 ≥552 ≥241 - ≥30 170-240 - - - Annealing 1020-1050℃ Furnace Cooling
    INCONEL 625 N06625 NS336 ≤0.10 - ≤0.015 ≤0.015 ≤0.50 ≥58.00 20.00-23.00 8.00-10.00 - ≤0.40 Nb：3.15-4.15 Mo：8.00-10.00 ≥817 ≥414 - ≥30 ≤325 - - - Annealing 925-1205℃ Furnace Cooling
    INCONEL 718 N07718 GH4169 ≤0.08 ≤0.35 ≤0.015 ≤0.015 ≤0.35 50.00-55.00 17.00-21.00 2.80-3.30 ≤0.30 0.65-1.15 Nb:4.75-5.50 Al:0.20-0.80 Co:≤1.00 ≥1275 ≥1034 ≥15 ≥12 325-370 - - - Solid Solution+Aging 924-1010℃+718±14℃ Air Cooling
    INCOLOY 800 N08800 NS111 ≤0.10 ≤1.50 - ≤0.015 ≤1.00 30.00-35.00 19.00-23.00 - ≤0.75 0.15-0.60 Al:0.15-0.60 ≥448 ≥172 - ≥30 ≤325 - - - Annealing 980-1040℃ Furnace Cooling
    INCOLOY 825 N08825 NS142 ≤0.05 ≤1.00 - ≤0.03 ≤0.50 38.00-46.00 19.50-23.50 2.50-3.50 1.50-3.00 0.60-1.20 Al：≤0.20 ≥586 ≥241 - ≥30 ≤325 - - - Annealing 925-980℃℃ Furnace Cooling
    HASTELLOY C-276 N10276 NS334 ≤0.01 ≤1.00 - - ≤0.08 ≥57.00 16.00 16.00 - - Co：≤2.50 W:4.00 V:≤0.35 ≥690 ≥283 - ≥40 ≤325 - - - Solid Solution 1180-1200℃ Water Cooling
    Special Stainless Steel XM-19 UNS S31803 FXM-19 ≤0.06 4.00-6.00 ≤0.04 ≤0.03 ≤1.00 11.50-13.50 20.50-23.50 1.50-3.00 - - Nb:0.10-0.30 N:0.20-0.40 V:0.10-0.30 ≥690 ≥380 ≥35 ≥55 325-370 - - - Solid Solution 1065-1100℃ Water Cooling
    C-4 N06455 NS335 ≤0.009 ≤1.00 ≤0.02 ≤0.01 ≤0.05 Margin 14.50-17.50 14.00-17.00 - 0.70 Co：2.00 Solid Solution 1180-1200℃ Water Cooling
    17-4PH S17400 05Cr17Ni ≤0.07 ≤1.00 ≤0.04 ≤0.03 ≤1.00 3.00-5.00 15.50-17.50 - 3.00-5.00 - Nb:0.15-0.45 ≥930 ≥725 ≥16 ≥50 ≥277 Room Temperature 30 41 Solid Solution+Aging 1020-1060℃+620℃ Water Cooling+Air Cooling
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  • Zhejiang haoqiu commonly used spraying materials process chemical composition table
    Category Code Powder Name Main Chemical Components% Operating Temperature（℃） Coating Hardness（HRC） Bonding Strength(Mpa) Coating Thickness（mm) Spraying Process
    C O Fe Ni Cr W Co Si B Mn Mo Cu
    Nickel-based Alloys Ni55A Ni55A 0.5-0.9 ≤0.08 ≤5.0 Margin 14.0-17.0 -- -- 3.5-5.0 2.5-4.0 -- -- -- -200~600 52-57 ≥150 Finished Product Thickness   0.5mm-1.0mm  
    Oxy-acetylene flame spraying welding
    Ni55AA 0.5-0.9 ≤0.08 ≤3.0 Margin 14.0-17.0 -- -- 3.5-5.5 2.5-4.5 -- -- -- -200~600 52-57 ≥150
    Ni60A Ni60A 0.5-1.1 ≤0.08 ≤5.0 Margin 15.0-20.0 -- -- 3.0-5.0 3.0-4.5 -- -- -- -200~600 57-62 ≥150
    Ni60AA 0.5-1.1 ≤0.08 ≤3.0 Margin 15.0-20.0 -- -- 3.0-5.5 3.0-5.0 -- -- -- -200~600 57-62 ≥150
    Ni65 Ni65A 0.8-1.2 ≤0.08 ≤5.0 Margin 15.0-20.0 -- -- 3.0-5.0 3.0-4.0 -- -- -- -200~600 58-63 ≥150
    Tsukasa Tatari Thermal Spray Powder STL SFCo-12 0.6-1.1 -- ≤3.0 12.0-19.0 16.0-20.0 6.0-9.0 Margin 2.0-4.0 1.5-3.0 ≤1.0 ≤0.5 -- -200~600 55-62 ≥150
    SFCo-20 0.8-1.6 -- ≤3.0 12.0-19.0 16.0-20.0 10.0-16.0 Margin 2.5-4.0 1.5-3.5 ≤1.0 -- -- -200~600 55-62 ≥150
    Copper-Molybdenum-Nickel Base Ni6325 16C 0.4-0.8 -- 2.5-3.0 Margin 15.0-17.0 -- -- 3.0-5.0 3.0-4.0 -- 2.0-4.0 2.0-4.0 -200~600 55-62 ≥150
    Nickel-based Tungsten Carbide Ni+Wc Ni60-WC5% 0.7-1.2 -- ≤8.0 Margin 14.0-17.0 2.0-7.0 -- 3.0-5.0 2.5-3.5 -- -- -- -200~600 55-63 ≥150
    Ni60-WC10% 0.9-1.5 -- ≤10.0 Margin 14.0-17.0 8.0-10.0 -- 3.0-5.0 2.5-3.5 -- -- -- -200~600 55-63 ≥150
    Ni60-WC15% 0.8-1.5 -- ≤10.0 Margin 14.0-17.0 12.0-16.0 -- 3.0-5.0 2.5-3.5 -- -- -- -200~600 55-63 ≥150
    Ni60-WC25% 1.0-2.0 -- ≤15.0 Margin 8.0-15.0 22.0-27.0 -- 3.0-5.0 2.5-3.5 -- -- -- -200~600 55-65 ≥150
    Ni60-WC35% 1.3-2.5 -- ≤15.0 Margin 8.0-15.0 27.0-35.0 -- 2.5-4.5 2.0-4.0 -- -- -- -200~600 55-65 ≥150
    Tsukasa Tatari STL STL6# 0.9-1.4 -- ≤3.0 ≤3.0 27.0-30.0 3.5-5.5 Margin 0.8-1.5 -- ≤0.5 ≤0.5 -- -200~700 35-50 ≥69 Finished Product Thickness 0.2mm-0.3mm

    HVOF

    (Supersonic Cold Spray)
    STL12# 1.25-1.55 -- ≤3.0 ≤3.0 28.0-31.0 7.25-9.25 Margin 1.0-1.7 -- ≤1.0 ≤1.0 -- -200~700 42-60 ≥69
    STL20# 2.3-2.6 -- ≤3.0 ≤3.0 31.0-34.0 16.0-18.0 Margin ≤1.0 ≤0.03 ≤0.5 ≤1.0 ≤0.03 -200~700 ≥52 ≥69
    Chromium Carbide CrC/CCC Cr3C2/NiCr-75/25 9.0-11.0 -- -- 19.0-21.0 Margin -- -- -- -- -- -- -- -200~700 800-1000HV0.3 ≥70 HVOF/HVAF (Supersonic Cold Spray)
    Cr3C2/NiCr-80/20 9.0-11.0 -- -- 14.0-18.0 Margin -- -- -- -- -- -- -- -200~700 800-1000HV0.3 ≥70
    Tungsten Carbide WC/TCC WC/Co/Cr-86/10/4 3.5-4.5 -- -- -- 3.5-4.5 Margin 9.0-11.0 -- -- -- -- -- -200~550 ≥1050HV0.3 ≥70
    WC/Co-88/12 4.8-5.5 -- -- -- -- Margin 11.0-13.0 -- -- -- -- -- -200~550 ≥1050HV0.3 ≥70
    WC/Co-83/17 3.5-4.5 -- -- -- -- Margin 16.0-18.0 -- -- -- -- -- -200~550 ≥1050HV0.3 ≥70
    2#WC/WC/TCC WC/Cr/Ni-73/20/7 5.0-7.0 -- -- 6.0-8.0 16.5-18.5 Margin -- -- -- -- -- -- -200~750 ≥1050HV0.3 ≥70
    WC/TCC WC/Ni-90/10 5.1-5.8 -- -- 9.0-11.0 -- Margin -- -- -- -- -- -- -200~550 ≥1050HV0.3 ≥70
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  • What is the process of ball valve surface treatment?

    The main processes for ball valve surface treatment include electroplating, spraying, heat treatment and chemical treatment, which are designed to improve the corrosion resistance, wear resistance and aesthetics of the ball valve. ‌

    Electroplating process:
    Electroplating is to plate a layer of metal or alloy on the surface of the ball valve by electrolysis. Common ones are chrome plating and zinc plating. The surface of the chrome-plated ball valve is as bright as a mirror, with good corrosion resistance and hardness; while zinc plating can effectively prevent rust and extend the service life. However, the electroplating process is costly and has great environmental pressure.

    Spraying process:
    Spraying is to form a protective layer by spraying a layer of paint on the surface of the ball valve. Common paints include epoxy resin paint and polyurethane paint. The spraying process is simple to construct, low-cost, and rich in colors, but the thickness and uniformity of the spray layer have an important influence on the protective effect.

    Heat treatment process:
    Heat treatment includes methods such as nitriding and quenching. Nitriding treatment can form a dense nitrided layer on the surface of the ball valve to improve wear resistance and corrosion resistance; quenching treatment can improve the hardness and strength of the surface of the ball valve. However, the heat treatment process is complex and energy-intensive, and has certain selectivity for materials.

    Chemical treatment process:
    Chemical treatment changes the surface properties of the ball valve through chemical reactions, and common ones include pickling and passivation treatment. Pickling can remove the oxide scale and rust on the surface, and passivation can form a dense passivation film on the surface to improve corrosion resistance.

    Hardening process:
    The hardening processes on the surface of the ball valve include surfacing of carbide, hard chrome plating, plasma nitriding and supersonic spraying (HVOF). Surfacing of carbide is complex and has low production efficiency; hard chrome plating has low cost but limited working temperature; plasma nitriding has poor corrosion resistance; supersonic spraying has the characteristics of high bonding strength and low porosity, and is suitable for high-viscosity fluids and highly corrosive environments.

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  • Development trend of ball valve industry

    ‌High-end products‌: With the development of refined industrial production, the control accuracy requirements of ball valves are constantly increasing. Especially in industries such as semiconductor manufacturing and biomedicine that require extremely high fluid control accuracy, ball valves need to have precise flow regulation and switch control capabilities to ensure the stability of the production process and product quality. In addition, the sealing performance of ball valves is also crucial. In the future, more advanced sealing materials and structural designs will be adopted, such as high-performance polytetrafluoroethylene materials, metal hard sealing structures, etc., to achieve zero leakage or extremely low leakage and improve the safety and reliability of equipment‌.

    ‌Intelligence and automation‌: Intelligent ball valves will integrate intelligent components such as sensors, controllers, and communication modules to achieve remote monitoring, automatic diagnosis, and automatic adjustment of ball valves. For example, sensors can monitor the working status, fluid parameters, and other information of ball valves in real time, and transmit data to the control system to achieve remote control and intelligent management of ball valves. In addition, ball valves will be more closely integrated with industrial automation systems and become an important part of automated production lines‌.

    ‌Green and environmental protection‌: With increasingly stringent environmental regulations, ball valves will use more environmentally friendly materials, such as recyclable materials and low-pollution materials, to reduce the impact on the environment. At the same time, the production process of ball valves will also pay more attention to energy conservation and emission reduction, adopt advanced manufacturing processes and equipment, and reduce energy consumption and pollutant emissions.

    Customized services: Different industrial fields and application scenarios have different requirements for ball valves. In the future, ball valve companies will pay more attention to providing customers with customized products and services. For example, for extreme working conditions such as deep low temperature, ultra-high temperature, high pressure, and high vacuum, ball valve companies will design and produce ball valve products that meet special requirements according to the specific needs of customers.

    Technological innovation: The electric ball valve industry will continue to increase investment in technology research and development and innovation to improve product performance and quality. For example, by adopting advanced automated production equipment and precision machining technology, production speed and product quality can be improved, while reducing manual errors and scrap rates. The application of high-performance materials will further enhance the reliability and service life of electric ball valves.

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  • The application range of ball valve ball is very wide

    ‌Industrial Field‌:
    Petroleum, Chemical Industry, Metallurgy‌: In these industries, ball valves are often used in equipment and piping systems for flammable and explosive media, especially in high-pressure piping systems and occasions that require strict sealing.
    ‌Electricity‌: In the power industry, ball valves are used for high-pressure cutoff and flow regulation, and are suitable for higher working pressure and temperature ranges.
    ‌Urban Construction‌: In urban construction, ball valves are used in municipal facilities such as water supply and gas to ensure stable supply and control of fluids.

    ‌Special Working Conditions‌:
    ‌Cryogenic (Deep Cold) Devices‌: Ball valves are suitable for low-temperature environments, such as deep cold devices and piping systems.
    ‌Corrosive Media‌: In piping systems containing corrosive media, ball valves can provide good sealing and corrosion resistance.
    ‌High-Pressure Cutoff‌: Ball valves are suitable for environments that require fast opening and closing and large pressure differences, such as shrinkage channels and mud pipelines in the petroleum and chemical industries.

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