Steel Plate For boiler and other pressure vessel Thickness: 6 to 200mm Width: 1, 500 to 4, 000mm Length: 6, 000 to 20, 000mm. Steel grades: ASTM A515: 65 and 70 ASTM A516: 55, 60, 65 and 70 ASTM A537: 1, 2 and 3 ASTM A662: A, B and C ASTM A387: GR 11-1, 2 GR22-1, 2 GR21 SPV235, SPV315, SPV355, SPV410, SPV450, SPV490, SGV410, SGV450, SGV480 SA299M, SA515M(Gr.60, 65, 70), SA204M(Gr.A, B, C) , SA387M(Gr.11, 12, 22) SA537M(GL.1, CL.2), SA662M(Gr.A, B, C), SA302M(Gr.A, B, C, D), SA737M(Gr.B, C) SA738M(Gr.A, B, C) , P235GH, P265GH, P295GH, P355GH, 16Mo3, 13CrMo4-5 .