The anti sulfur butterfly valve discusses what needs to be done with the WCB material

Here are some of the well-known brands recognized in the valve industry, which are widely recognized and have a high reputation. While rankings may vary depending on time and market conditions, the following brands are generally considered to be among the top brands in the valve industry:

The following influential first-line brands of water system valves and industrial valves can be used as a reference, but for reference only: Suzhou Neway Valve, Shanghai Guanlong Valve, Shanghai Qizhong Valve, Sanhua, Su Yan, Shentong, Su Valve, Nanfang, Jiang.

First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.

These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional organizations or market research data for more detailed and accurate information.

Anti-sulfur treatment is also required. A heat treatment method.

1 All standards: NACE MR0175 Maximum hardness: 22HRC

Hello, are you going to do an experiment.

Isn't it supposed to be this nacetm 0177

WCB is cast carbon steel, and the corresponding forging material is A105

WC6 is cast alloy steel.

Commonly used valve material:

The valve body, bonnet and ram (disc) are one of the main parts of the valve, which directly bear the pressure of the medium, and the materials used must meet the requirements of "pressure and temperature class of the valve". The commonly used materials are as follows:

1. Gray cast iron: Gray cast iron is suitable for water, steam, air, gas and oil with a nominal pressure of pn and a temperature of 10 200. The commonly used grades of gray cast iron are: HT200, HT250, HT300, HT350.

2. Malleable cast iron: suitable for water, steam, air and oil medium with nominal pressure pn and temperature of 30 300, commonly used grades are: KTH300-06, KTH330-08, KTH350-10.

3. Ductile iron: suitable for PN, water, steam, air and oil at a temperature of 30 350. Often.

The grades are: QT400-15, QT450-10, QT500-7.

In view of the current domestic technology level, the factories are uneven, and it is often not easy for users to inspect. As a rule of thumb, it is recommended that the valve is still made of steel for safety.

4. Acid-resistant high silicon ductile iron: suitable for corrosive media with nominal pressure pn and temperature lower than 120.

5. Carbon steel: suitable for water, steam, air, hydrogen, ammonia, nitrogen and petroleum products with nominal pressure pn and temperature of 30 425. Commonly used grades are WC1, WCB, ZG25 and high-quality steel and low-alloy structural steel 16Mn.

6. Copper alloy: suitable for PN water, seawater, oxygen, air, oil and other media, as well as steam medium with a temperature of 40 250, the commonly used grades are ZGNSN10ZN2 (tin bronze), H62, HPB59-1 (brass), QAZ19-2, QA19-4 (aluminum bronze).

7. High-temperature copper: suitable for steam and petroleum products with nominal pressure PN temperature 570. Commonly used grades are:

zgcr5mo,1cr5m0.ZG20CRMOV, ZG15GR1MO1V, 12CRMOV, WC6, WC9 and other grades. The specific selection must be in accordance with the provisions of the valve pressure and temperature specifications.

8. Low-temperature steel, suitable for nominal pressure PN, temperature -196 ethylene, propylene, liquid natural gas, liquid nitrogen and other media, commonly used grades) ZG1Cr18Ni Cr18Ni9, 1Cr18Ni9Ti, ZG0Cr18Ni9

9. Stainless acid-resistant steel, suitable for nominal pressure PN, temperature 200 nitric acid, acetic acid and other media, commonly used grades are ZG0CR18NI9TI, ZG0CR18NI10 "nitric acid resistance", ZG0CR18NI12MO2TI, ZG1CR18NI12MO2TI "acid resistance and urea".

WCB is equivalent to 25 or 35 carbon steel.

WC6 can be seen as adding a small amount of CR (1% and MO (approx.

The valve is made of WCB, not cast iron, but carbon steel.

WCB is cast carbon steel, and WCB's forging is A105. Writing on the valve indicates the body material. WCB is an American grade, which is equivalent to ZG310-570 (ZG45) in China.

However, now this grade has been introduced in GB T 12229-2005 "Technical Conditions for Carbon Steel Castings for General Valves".

WC6: chromium-molybdenum steel.

Grade: WC6

Standard: ASTM A217

Chemical composition. c≤mn

si≤crmoni≤

w≤cu≤s≤p≤

ZG20CRMOV is a casting that is widely used in working conditions below 540; For example, important steel casting materials such as high and medium pressure cylinder blocks, nozzles, valve housings and steam chambers in steam turbine power generation equipment have high lasting strength and thermal strength properties; It can also be used as a pipeline attachment such as the main steaming elbow pipe of the thermal power plant.

The material of the valve WCB is carbon steel. The commonly used in China are WCA, WCB, WCC in ASTM A216 A216M. The basic meaning of its grade is:

W is the weldable steel, C is cast, A, B, and C are the strength grades of the carbon steel, where A is the lower strength brother, B is the medium strength, and C is the higher strength. In general, the most commonly used is the weldable carbon cast steel of the medium strength WCB grade Envy Qin. When the strength requirement is high, WCC should be used.

Because the MN content in the WCC is higher, the strengthening effect on the steel increases, and the S value also increases. In terms of brand, you can choose Qigao, which is very good.

WCB stands for carbon steel EPDM stands for EPDM You provide less information, so you can only guess roughly, which means that it should be the body material and sealing surface.

Carbon steel is translated into English as carbon steel, abbreviated as CS, carbon steel, also known as carbon steel, refers to an iron-carbon alloy with a carbon content of less than 2% WC.

WCB: American ASTM standard, standard number A216 Grade: WCB, WCB is equivalent to domestic 25 or 35 carbon steel castings.

The valve material code WCB is cast steel, and the valve material code CS is carbon steel.

Valve: The valve is a control component in the fluid delivery system, which has the functions of shut-off, regulation, diversion, prevention of backflow, pressure stabilization, diversion or overflow pressure relief.

Valves for fluid control systems range from the simplest shut-off valves to the most complex valves used in automated control systems. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, slurries, oils, liquid metals and radioactive media. According to the material, the valve is also divided into cast iron valves, cast steel valves, stainless steel valves, etc.), chromium-molybdenum steel valves, chromium-molybdenum-vanadium steel valves, duplex steel valves, plastic valves, non-standard customized and other valve materials.

Generally speaking, CS refers to the general term of carbon steel, and WCB is a specific steel type in the American standard, such as WCA, WCB, WCC, etc.

CS includes, but is not limited to, WCB, which belongs to CS :).

It shows that the valve body of this valve is WCB is cast carbon carbon steel, and the sealing pair (gate plate and seat for gate valves, disc and seat for globe valves) is: 13cr stainless steel surfacing sealing surface material STL carbide.

The overlay seal surface is made of carbon steel or STL carbide, and the body is 13% CR martensitic stainless steel.

WCB stands for carbon steel cast valve body, and the sealing material is Stellite.