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Steel Numbering And Representation

Sep 30, 2016

① with the international chemical element symbol and the symbol of the country to represent the chemical composition, with the Arabic alphabet to indicate the content of ingredients:

Such as: China, Russia 12CrNi3

② with a fixed number of digits to indicate steel series or figures; such as: the United States, Japan, 300 Series, 400 Series, 200 Series;

③ with the Latin alphabet and order composition number, only that use.

China 's numbering rules

① the use of element symbols

② use, Pinyin, open hearth steel: P, boiling steel: F, killed steel: B, A class steel: A, T8: special 8, GCr15: ball

◆ alloy steel, spring steel, such as: 20CrMnTi 60SiMn, (with a few thousandths that C content)

◆ stainless steel, alloy tool steel (with a few thousandths that C content), such as: 1Cr18Ni9 per thousand (0.1% C), stainless steel C ≤ 0.08% such as 0Cr18Ni9, ultra-low carbon C ≤ 0.03% such as 00Cr17Ni13Mo