use
403 is equivalent to 1Cr 12 stainless steel pipe in China, containing 0.0 1% carbon and 0/2% chromium.
403 stainless steel pipe belongs to the international stainless steel representation. 403 Stainless Steel Pipe-S40300 (AISI, ASTM, USA)
The corresponding China brand of 403 is 1Cr 12.
Characteristics and uses: As an excellent stainless heat-resistant steel, it is used for steam turbine blades and high-stress parts.
way
The American Iron and Steel Association uses three numbers to represent various standard grades of malleable stainless steel. These include:
① Austenitic stainless steel is marked with 200 and 300 series numbers,
② Ferritic and martensitic stainless steels are represented by 400 series numbers. For example, some common austenitic stainless steels.
It is marked with 302,304,316,310.
③ ferritic stainless steel is marked with 430 and 446, and martensitic stainless steel is marked with 4 10, 420 and 440C.
Remember, biphasic (austenite-ferrite),
④ Stainless steel, precipitation hardened stainless steel and high alloy with iron content less than 50% usually adopt patent names or trade names.
(1) Use element symbols
② uses: hanyu pinyin, open hearth steel: p, boiling steel: f, killed steel: b, grade a steel: a, T8: Te8,
GCr 15: ball
◆ Composite steel and spring steel, such as 20CrMnTi 60SiMn (C content is expressed in parts per ten thousand).
◆ Stainless steel and alloy tool steel (C content is expressed in thousandths), such as: 1Cr 18Ni9 thousandths (i.e.
0. 1%C), stainless C≤0.08%, such as 0Cr 18Ni9, and ultra-low carbon C≤0.03%, such as 0Cr 17Ni 13Mo.