CNC cutting machine will inevitably encounter steel products in production, but the technology of how to identify these products still needs to figure out the brand representation of these products.
The pig iron grades indicate that the cast iron grades are represented by the symbols specified in Table 1 and Arabic numerals.
a. Arabic numerals represent the average silicon content (in parts per thousand).
For example: Casting pig iron containing 2.75%~3.25% of silicon, its grade is denoted as "Z30";
The steelmaking pig iron containing 0.85% to 1.25% of silicon is indicated by the designation "L10".
b. Vanadium-bearing pig iron and decarburized low-phosphorus ferrite, and Arabic numerals mean the average content of vanadium and carbon, respectively (in parts per thousand).
For example, vanadium-containing pig iron containing not less than 0.40% vanadium is graded as "F40", and decarburized low-phosphorus grain iron with carbon content of 1.20%-1.60% is designated "TL14".
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