Alloy steel pipe knowledge: 12Cr1MoVG alloy steel pipe
The two digits at the beginning of the 12Cr1MoVG alloy steel pipe 1 indicate the carbon content of the steel, expressed in parts per million of the average carbon content, such as 40Cr.
2 The major alloying elements in steel, except for individual microalloying elements, are generally expressed in percent. 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%, ≥ 3.5%, etc., the content shall be indicated after the element symbol, which may be expressed as 2, 3, 4...etc. 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.
Alloy steel pipe and seamless steel pipe have both relations and differences and cannot be confused.
Alloy steel pipe is defined according to the production material (that is, material), as the name suggests is made of alloy pipe; and Seamless Pipe is defined according to the production process (seamless seam), different from the seamless pipe is Sewed pipe, including straight seam welded pipe and spiral pipe.
Material of alloy steel pipe 16-50Mn, 27SiMn, 40Cr, Cr5Mo, 12Cr1MoV, 12Cr1MovG, 15CrMo, 15CrMoG, 15CrMoV, 13CrMo44, T91, 27SiMn, 25CrMo, 30CrMo, 35CrMo, 35CrMoV, 40CrMo, 45CrMo, Cr9Mo, 10CrMo910, 15Mo3, A335P11, P22, P91, T91, Gangyan 102, ST45.8-111, A106B
Steel pipe weight calculation formula [(outer diameter - wall thickness) * wall thickness] * 0.02466 = kg / meter (weight per meter)
Company's main business: thick-walled steel pipe, alloy steel pipe, straight seam steel pipe, geological steel pipe Address: No. 18, Dadong Steel City, Liaocheng Development Zone, Shandong Province Post Code: 252000
Contact person: Bu Lingwei Zhang Bing Tel: Mobile:/18266350353
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