30CrMo alloy steel

Jun 9 10:32 2016 Allice S Lee Print This Article

More information about 30CrMo Alloy steel pipe

30 CrMo alloy steel chemical composition


Silicon carbon 0.26 ~ 0.34,Guest Posting 0.17 ~ 0.37, manganese 0.40 ~ 0.70, 0.15 ~ 0.25, molybdenum chrome 0.80 ~ 1.10


30 crmo alloy steel pipe weight calculation formula


[] - wall thickness (diameter) * wall thickness * = 0.02466 kg/m (weight of per meter)


30 CrMo alloy steel pipe specifications: 1-6-1220 * 120 mm


30 CrMo alloy steel pipe


1) steel grade at the beginning of the two figures show that the carbon content of steel, with the average carbon content per few said, such as cr, 30 crmo 40


(2) main alloy element in steel, in addition to the individual microalloy element, usually expressed as a percentage. When the average alloy content < 1.5%, generally only mark symbol in the steel grade, and not indicate content, but in special cases, easy to cause confusion, after the element symbol can be labeled with Numbers "1", such as steel grade "12 crmov" and "12 cr1mov", the former chromium content is 0.4 0.6%, which is 0.9-1.2%, all the rest of the ingredients are the same. When the average alloy element content of 1.5% or higher, or 2.5%, 3.5% or more... , behind the symbol should be marked content, can be said for 2, 3, 4... And so on. For example, 18 cr2ni4wa.


(3) of the steel vanadium V, Ti, aluminum, titanium, boron, rare earth and alloy elements such as RE B, micro alloying elements, although the content is very low, still should be in steel grade drawings. 20 MNVB steel, for example. Vanadium is 0.07-0.12%, boron is 0.001-0.005%.


(4) advanced high-quality steel should be at the end of the steel grade "A", to distinguish it from high quality steel in general.

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As for special purposes (5) of the alloy structural steel, steel grade (or suffix) on behalf of the steel grade USES symbols.


30 CrMo alloy steel pipe USES


The biggest advantages of 30 crmo alloy steel pipe can be 100% recovery, accord with environmental protection, energy saving, saving resource of national strategy, the national policy to encourage the expansion of high-pressure alloy pipe applications. Alloy steel pipe in China at present the proportion of the total consumption of steel products is half that of developed countries, the alloy steel pipe used areas provide a broader space for the development of industry. According to the research of the China association of special steel alloy steel pipe branch, the future of our country high alloy steel tube material demand grew by an average of 10-12%.

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Allice S Lee
Allice S Lee

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