The corresponding grade of T12 steel, what kind of steel is T12A

T12A is carbon tool steel, referred to as carbon steel, it is a high-carbon non-alloy steel, the implementation standard.

Yes: GB T1298-2008, the carbon content of this T12A steel is in, and the manganese content is less than or equal to, and the silicon content is less than or equal to, and the A in T12A steel represents the meaning of high-grade steel. Therefore, it is only suitable for the manufacture of tools with small size, simple shape, light load, and cold image molds that require a low hardened layer and high toughness.

T12A is carbon tool steel, referred to as carbon steel, it is a high-carbon non-alloy steel, the implementation standard is: GB T1298-2008, the carbon content of this T12A steel is poor, in addition to the manganese content is less than or equal to, the silicon content is less than or equal to, T12A steel in A represents the meaning of high-grade liter or steel. Therefore, it is only suitable for the manufacture of tools with small size, simple shape, light load, and cold image molds that require a low hardened layer and high toughness.

Spring smiles.

Carbon tool steel. T12A steel belongs to carbon tool steel according to its use, and its average carbon content is about potato trouble, which is a high-carbon steel.

Steel with a greater carbon content than is called high-carbon steel); The letter A marked at the end of the grade indicates that T12A belongs to high-grade high-quality carbon steel according to its metallurgical quality.

The contents of s (sulfur) and p (phosphorus) are in decimals. 45 steel.

According to the use, it belongs to the structural steel of mechanical parts, and it is usually applied in the quenched and tempered state, so it is also called quenched and tempered steel.

Process:1. If the performance of the workpiece is high, spheroidization annealing treatment is first, that is, it is heated to 760 820 degrees for 30 minutes, and then quickly cooled to 550 600 degrees in the pearlite transition zone for 1 hour, and then cooled with the furnace, so that the overheated structure can be removed and the grains can be refined.

2. Quenching after spheroidization annealing, heated to about 800 degrees Celsius and kept warm for 2 hours with water quenching.

3. After quenching, it is heated to about 200 degrees and kept warm for 30 minutes for stress relief annealing.

The above content refers to Encyclopedia - Carbon Tool Steel.

T-carbon, carbon content, A-high.

T12A steel is a high-grade high-quality carbon tool steel. Carbon tool steel is used to manufacture various tools, measuring tools, molds, cutting tools, etc. with a cross-sectional size of no more than 8mm.

T8, T9 is used to make hand hammers, scissors, chisels, etc., T10, T11 is used to make taps, measuring tools, saw blades, etc., high-grade high-quality carbon steel can obtain a smaller surface roughness after grinding, which can be used to manufacture tools with higher precision and more complex shapes.

T12A carbon tool steel, the steel is eutectic steel, due to the high carbon content, there is still a large excess carbide after quenching after the spring embrace, good machinability, cheap, easy.

T12A---T: Carbon front residual element tool steel.

T12A---12: The carbon content of the silver skin is about (destroyed.)

t12a---a: indicates that the s content is less than the p content is less than.

Hello, T121120 is a kind of T12 steel. T12 steel is used in boilers, superheaters and heat exchanger tubes with small wall thicknesses. Suitable for seamless iron elements and austenitic steel tubes with small wall thicknesses for boilers and superheaters, as well as austenitic tubes for heat exchangers.

T12 steel chemical early composition: Si Mn P, free bond S, T12 steel mechanical properties: tensile strength 415MPa, yield strength 205MPa elongation 30%.