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Stainless steel and heat-resistant steel grades with alloy element standard symbols and Arabia digital representation, for cutting stainless steel, free cutting head heat-resistant steel grade increases in "Y".
That the average carbon content of a Arabia digital generally used (in a few thousandths of a meter); when the average carbon content was higher than 1%, represented by the two Arabia digital; when the content of carbon cap is less than 0.10%, to "0" carbon content; when the content of carbon cap = 0.03% > 0.01% when the (ultra low carbon), to "03" carbon content; when the content of carbon cap (less than 0.01% is very low carbon), "01" as the carbon content. Carbon content limit does not require, by Arabia digital representation of the upper limit of the number of carbon content.
The alloying element contents and representation methods and alloy structural steel. For example: the average carbon content is 0.20%, the chromium content of 13% stainless steel, the grade is expressed as "2Cr13"; the carbon content of the upper limit is 0.08%, the average amount of chromium 18%, the content of nickel is 9% chromium nickel stainless steel, the grade is expressed as "0Cr18Ni9"; the carbon content of the upper limit is 0.12%, the average chromium weight of 17% and sulfur free cutting chromium stainless steel, the grade is expressed as "Y1Cr17"; the average carbon content of 1.10%, 17% of the chromium content of high carbon chromium stainless steel, the grade is expressed as "11Cr7"; the carbon content of the upper limit is 0.03%, the average amount of chromium 19% nickel content for ultra low carbon 10% stainless steel, the grade is expressed as "03Cr19Ni10"; the carbon content of the upper limit is 0.01%, the average amount of chromium 19% nickel content is extremely low carbon stainless steel 11%, the grade is expressed as "01Cr19Ni11".