The ASTM A213 T9 alloy tubing heat exchange finned tube is the most used heat exchanger tube in the heat exchange of gas and liquid. It is to add fin to the common base tube to enhance heating, so as to achieve the fast heat transfer of heat exchanger through heat exchange finned tube. According to the type of materials , it is divided into single-metal finned tube and bimetal finned tube.
S420MC hot-rolled automobile structural steel chemical composition (melting analysis)%C: ≤0.12, Si: ≤0.50, Mn: ≤1.60, P: ≤0.025, S: ≤0.020, Alt: ≥0.015, Nb: ≤0.09, V: ≤0.20, Ti: ≤0.10Mechanical propertiesYield strength MPa: ≥420Tensile strength MPa: 480-620Elongation: ≥16
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By Region: data shows that in the first quarter of Asia, crude steel production was 315.2 million tons, down 0.3% year on year. Crude steel production in the EU region in the first quarter was 38.3 million tons, down 10.0% year on year. The output of crude steel in North America in the first quarter was 29.5 million tons, down 4.0% year on year. According to the output ranking, according to the latest data of the world iron and Steel Association, the output of crude steel in the top ten countries in March 2020 was 126 million tons (8571% of the world), and the output of crude steel in the first quarter was 376 million tons (8507% of the world),A633 Grade E high strength structural steel.
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