ASTM A537/A537M Class 1/2/3 are Pressure Vessel Steel Plates,Heat-Treated, Carbon-Manganese-Silicon Steel. [1] Grade: ASTM A537/A537M Class 1/2/3 [2] Standards: ASTM A537/A537M - 95 [3] Delivery Condition: Normalizing,QT,etc. [4] Tests: Tension test,Impact test,Ultrasonic Examination,etc. [5] Supplementary Requirements:S1,S2.S3.S4,S5,S6,S7,S8,S9,S11,S12,S14,S17. [6] Addtional Doucuments: MTC CERTIFICATE OF ORIGIN [7] Specifications(T*W*L): 6-150mm*1500-4200mm*3000-18000mm [8] Delivery Time: 20--40days [9] Packaging: In bulk or container [10] Payment Terms:T/T L/C [11] Price Terms: FOB CIF More information about ASTM A537/A537M Class 1/2/3 pressure vessel steel plates, please feel free to