... ) Round and embossed tube O.D. (mm)9.5 , 12.7 , 15.9 , 17 , 18 , 19. 1 , 20 , 21 , 22.2 , 23 , 25.4 ... , 50*25 , 50*50 , 55*13 , 60*40 , 60*60 , 70*30 , 73*43 , 80*40 , 80*60 , 80*80 , 95 ... .500.20-0.302Cr13Mn9Ni40.15-0.2512.00-14.003.70-5.008.00-10.002Cr15Mn15Ni2N0.15-0.2514.00-16.001 ... )≤1.25≤0.035≥0.154)≤1.00---9Cr18Mo0.95-1.1016.00-18.003)≤0.80≤0.035≤0.0300.40-0.70 ...