28. ISO 513 Work materials Intro SS UNS U.N.E. / l.H.A. AISI-ASTM GOST ČSN Trade Mark Structure R50250 265-G1 Grade 1 R50400 265-G2 Grade 2 SP R50550 265-G3 Grade 3 R56320 Grade 9 SL PO R50700 265-G4 Grade 4 R56400 Grade 5 Grade 6 4975 6242 ST R56260 6246 1770 G10700 F.5103 1070 70 1774, 1778 G10780 F.5107 1078, 1080 75 1870 G10950 F.5117 1095 ROLL 1880 F.5118 W1 U10A S1 5KHV2SF 2511 G51170 F.1516 5115 12KHN2 14 220 2253 G51550 5155N07750 Inconel X750 (solubilized) HRSA Nickel-based CARBIDE T61202 F.520L L2 11KHF 2140 T31501 F.5220 O1 9KHVG T31502 O2 9G2F 2258 G51986 F.5230 52100 SHKH15 14 109 LONG HAND TAPS EG (STI) SPECIAL THREADS, GAUGES THREAD MILLS DIES CENTER DRILLS Technical info 759