ASTM A537 3级板厚度

　　ASTM A537 Class 3 plate refers to pressure vessel plates, material in heat-treated, carbon-manganese silicon steel. The maximum thickness under ASTM A537 Class 3 is 150 mm [6 inch].

　　ASTMA537 3级水分素要求

厚度	拉伸强度[MPA]	产量强度[MPA]，Min：
2-1 / 2 in。[65 mm和下面]	80-100 [550-690]	55 [380]
超过2-1 / 2至4英寸[超过65到100mm]	75-95 [515-655]	50 [345]
超过4到6英寸[超过100至150 mm]	70-90 [485-620]	40 [275]

　　Elongation in 2 in[50 mm], min, %: 22

　　Elongation4 in, [100 mm] and under Over 4 in [100 mm]: 20

　　Heat Treatment for ASTM A537 Class 3 Plates

　　A537 Class 3 plates shall be quenched and tempered. The tempering temperature for Class 2 plates shall not be less than 1100°F [595°C] and not less than 1150°F [620°C] for Class 3 plates.

　　ASTM A537 Class 3 plate material is used in a variety of applications including pressurised tanks and heat exchangers. A537 Class 3 steel shall be killed and undergo normalization, quenching and tempering. A537 Class 3 Pressure Vessel Plates is mainly used for manufacture in the oil and gas and petrochemical industries. A537 cl3 steel platessupplied in the normalised condition and the specification covers plates up to 100 mm (4 inches) in thickness.

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