The valve body has a wide range of materials, suitable for a variety of different working conditions.

1)  Grey cast iron, suitable for working temperature between -15~+200℃, nominal pressure PN≤1.6MPa of low pressure valve.

2) Black heart malleable cast iron, applicable to the working temperature between -15~+250℃, nominal pressure PN≤2.5MPa for low and medium pressure valves.

3) Ductile iron, applicable to the working temperature between -30 ~ +350 ℃, the nominal pressure PN ≤ 4.0MPa low pressure valves.

4) Carbon steel (WCA, WCB, WCC), applicable to the working temperature between -29 ~ +425 ℃, medium and high pressure valves, including 16Mn, 30Mn working temperature between -40 ~ +450 ℃, commonly used to replace the ASTMA105.

5) Low-temperature carbon steel (LCB、LC1、LC2、LC3), suitable for the working temperature between -46 ~ +345 ℃ low-temperature valve valve.

6) Alloy steel (WC6, WC9), applicable to the working temperature between -29 ~ +595 ℃ non-corrosive media of high temperature and high pressure valves; WC5, WC12 applicable to the working temperature between -29 ~ +650 ℃ corrosive media of high temperature and high pressure valves.

7) Austenitic stainless steel, suitable for the working temperature between -196 ~ +600 ℃ corrosive media valves.

8) Monel alloy, mainly for valves containing hydrogen fluoride media.

9) Cast copper alloy, mainly for the working temperature between -273 ~ +200 ℃ oxygen pipeline with the valve.

The above list is the commonly used materials of valve body in the major categories, specific materials in each category. There are many different grades, a variety of different grades and applicable to a variety of different pressure levels. Therefore, in the selection of valve body materials, according to the different usage and pressure levels, to determine the valve body materials suitable for the needs of the working conditions.

In addition, the valve body materials are titanium alloy (titanium valve), aluminum alloy (aluminum valve); plastic (plastic valve); ceramic (ceramic valve) and so on.

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