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42CrMo alloy steel pipe and its chemical composition, process description
42CrMo alloy steel pipe English (42CrMoalloy steel pipe)
The two numbers at the beginning of a steel number indicate the carbon content of the steel, expressed in parts per million of the average carbon content, such as 40Cr, 42CrMo steel alloy steel, the main alloying elements in the steel, in addition to individual microalloying elements, generally a few percent Indicated. When the average alloy content is less than 1.5%, only the symbol of the element is generally marked in the steel number, and the content is not marked, but in special circumstances, it is easy to cause confusion. After the element symbol, the number “1†may also be marked, for example, the steel number. "12CrMoV" and "12Cr1MoV", the former chromium content of 0.4-0.6%, the latter is 0.9-1.2%, the remaining components are the same. When the average content of alloying elements is ≥ 1.5%, ≥ 2.5%, and ≥ 3.5%, the content should be indicated after the element symbol, which can be expressed as 2, 3, 4 and so on. For example 18Cr2Ni4WA.
(3) Alloying elements such as vanadium V, titanium Ti, aluminum AL, boron B, and rare earth RE in steel are microalloying elements. Although the content is very low, they should be marked in the steel number. For example, in 20MnVB steel. Vanadium is 0.07-0.12% and boron is 0.001-0.005%.
4 High-grade steel should be added "A" at the end of the steel to distinguish it from ordinary high-grade steel.
5 special purpose alloy structural steel, steel crown (or suffix) represents the symbol of the steel use. For example, special 30CrMnSi steel for rivets, the steel number is ML30CrMnSi.
42CrMo alloy steel pipe weight calculation formula [(outer diameter - wall thickness) * wall thickness] * 0.02466 = kg / meter (weight per meter)
The alloy steel pipe knowledge is issued by the source alloy steel pipe plant.
Alloy steel pipe plant for everyone to know in detail 42CrMo alloy steel pipe knowledge
Alloy steel pipe plant for everyone to know in detail 42CrMo alloy steel pipe knowledge