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Tool steel is divided into three categories: carbon tool steel(white fused alumina price), alloy tool steel, and high-speed tool steel. Ordinary carbon tool steel with manganese content is an Arabic numeral after the symbol "T" for tool steel. For example: a carbon tool steel with an average carbon mass fraction of 0.90%, its grade is expressed as "T9"(aluminum oxide 40/60 grit). Carbon tool steel is represented by prescribed symbols and Arabic numerals(in parts per thousand).

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High quality carbon tool copper, add the symbol "A" at the end of the grade(100 grit aluminum oxide white). The expression method of the average mass fraction of the elements in the alloy is that when the average mass fraction is less than 1.50%, only the elements are indicated in the grade, the mass fractions of the elements in the alloy are 1.50%-2.49%, 2.50%-3.49%, 3.50% ~4.49%, 4.50%-5.49%, 5.50%~6.49%...(aluminum oxide 1000 grit), write 2.3, 4, 5, 6... after the element accordingly.

(sponge media abrasive blasting manufacturers germany)For non-quenched and tempered mechanical structural steel, and the mass fraction is not indicated(black aluminium oxide); add the symbol "YF" to the head of the grade. "F" means free-cutting non-quenched and tempered mechanical structural steel and non-quenched and tempered mechanical structural steel for hot forging(aluminum oxide 80-90 grit). Use two Arabic numerals to indicate the average mass fraction of carbon (in ten-thousandths) and place it at the head of the grade.

For example: High-quality high-quality carbon tool steel with an average carbon mass fraction of 1.0%, and its grade is expressed as "TIOA"(carborundum grit). For free-cutting steel containing calcium and lead, add element symbols after the symbol "Y" and Arabic numerals. Non-quenched and tempered mechanical structural steel. stainless steel and heat-resistant steel(brown fused aluminum oxide sandblasting abrasive). The method of designation is the same as that of alloy structural steel.(sponge media abrasive blasting manufacturers germany)

For example(white corundum manufacturers); the average mass fraction of carbon is 0.15%, and the mass fraction of lead is 0.15%~0.35% free-cutting steel, its grade is expressed as "Y15P%"; the average mass fraction of carbon is 0.45%, and the mass fraction of calcium is 0.002 %~0.006% of free-cutting steel, its grade is expressed as "Y45Ca"(aluminum oxide 500 grit). For high-quality spring steel, add the symbol "A" at the end of the grade, and its spleen number is expressed as "60Si2MnA".

(sponge media abrasive blasting manufacturers germany)General alloy tool steel and high-speed tool system are expressed in the same way as alloy structural steel(carborundum abrasives). It is indicated by the alloy element symbols and Arkham numbers specified in Table 2-7, but generally does not indicate the number of carbon mass fractions. Alloy structural steel grades are represented by net Raber numbers and alloy element symbols specified in Table 2-7(80 grit aluminum oxide for cerakote). Arabic numerals indicate the average mass fraction of carbon.

The average mass fraction of carbon is 0.85%, the average mass fraction of tungsten is 6.00%(black aluminum oxide blast media), the average mass fraction of cap is 5.00%, the average mass fraction of chromium is 4.00%, and the average mass fraction of sail is 2.00%. The grade is expressed as "W6Ma5Cr*V2"(carborundum powder suppliers). If the average mass fraction of alkali is less than 1.00%, one digit can be used to indicate the average mass fraction of carbon (in a few thousandths).(sponge media abrasive blasting manufacturers germany)