30CrMo alloy steel pipe | 30CrMo alloy steel pipe 30CrMo alloy steel pipe containing carbon 0.26 ~ 0.34, silicon 0.17 ~ 0.37, manganese 0.40 ~ 0.70, molybdenum 0.15 ~ 0.25, chromium 0.80 ~ 1.10 Toyota Electric Pallet Jack,Center Rider Pallet Jack,Big Joe Electric Pallet Jack,Electric Power Jack Guangdong Gongyou Lift Slings Machinery CO.,LTD , https://www.workmatehoist.com
1 The two digits at the beginning of the steel indicate the carbon content of the steel, expressed in parts per million per cent of the average carbon content, such as 40Cr, 30CrMo steel alloy steel 2 main alloy elements, 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%, ≥ 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 tube and seamless tube are both related and different and cannot be confused.
The alloy pipe is defined according to the production material (that is, the material). The tube is defined by the alloy as its name implies; and the seamless pipe is defined according to the production process (seamless seam), which is different from the seamless pipe. Sewed pipe, including straight seam welded pipe and spiral pipe.
30CrMo alloy steel pipe chemical composition:
Alloy steel pipe material: 35CrMo, 16-50Mn, 27SiMn, 40Cr, Cr5Mo 12Cr1MoV 12Cr1MovG 15CrMo 15CrMoG 15CrMoV 13CrMo44 T91 27SiMn 25CrMo 30CrMo 35CrMoV 40CrMo 45CrMo 20G Cr9Mo 10CrMo910 15Mo3 A335P11. P22.P91. T91, Gangyan 102, ST45.8-111 A106B.
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