What is astm a573 standard equivalent material in China

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astm a573 standard plate weight:
1) Theoretical weight of astm a573 standard plate:
The theoretical weight of a steel plate is the weight calculated based on the nominal size and density of the steel plate (previously called specific gravity). It is closely related to the length, size, and cross-sectional area of the steel plate.
2) The actual weight of astm a573 standard plate:
The actual weight of the steel plate refers to the weight obtained through actual weighing, which is more accurate than the theoretical weight.

45# steel is commonly used medium carbon quenched and tempered structural steel. The steel astm a573 standard is generally cold plastic, annealing and normalizing are slightly better than quenching and tempering, with higher strength and better machinability. After proper heat treatment, 45# carbon steel can certain toughness, plasticity and wear resistance can be obtained. 45# steel normalizing can improve the cutting performance of roughness less than 160HBS.

Phosphorus is a very harmful element in astm a573 standard steel. With the increase of phosphorus content, the strength, flexion ratio and hardness of astm a573 standard steel increased, but the plasticity and toughness decreased significantly. In particular, the lower the temperature, the greater the impact on plasticity and toughness, increase the cold brittleness of steel.

"A204 Grade C steel chemical composition(%)Carbon max.: 0.28 Manganese max.: 0.90Phosphorus Max.: 0.025Sulfur Max.: 0.025Silicon: 0.15-0.40Molybdenum: 0.45–0.60astm a573 standard, A204 Grade C steel mechanical propertiesFor boiler steel plate A204 Grade C, the yield strength shall be above 295 Mpa, tensile strength from 515 Mpa to 655 Mpa."

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Our quality and service commitment: astm a573 standard product quality problems, life-long replacement.In the process of using, any time if you find we supplied steel materials not conform to the requirements of technical standards, we can replace it for you free of charge. However, it should be noted that non product quality problems caused by improper use are not covered by the warranty. Please pay attention to the service time commitment as well as the product quality assurance commitment. Because only the products of big brands and reliable enterprises with complete after-sales service system can truly realize the long-term product quality assurance and the whole process of service.