NF A49-141-78 STEEL TUBES WELDED PLAIN END TUBES OF COMMERCIAL QUALITY FOR GENERAL PURPOSES AT MEDIUM PRESSURE (NF A 49-141-78 / NFA49-141-78) 1. Chemical compositionGradeMfg. ProcessChemical composition(%)CSiMnPSNiCrMoOthersTS37aE, BEfferves-cent 0.22Max-1.30Max0.05Max0.05Max-Effervescent N 0.009MaxTS37aE, BNoneffer-vescent 0.20Max-1.30Max0.05Max0.05Max-Noneffervescent N 0.008Max2. Mechanical Properties Grade Tensile Test MPa or N/mm2 Remaks(Similar to JIS)Possibility TemperatureMin Yield pointTensile StrengthTS37a240360Max(STPG370)TS37a240360Max(STPG370)JIS Number and Corrensponding Foreign StandardsJISASTMBSDINNFISOIndex NumberStandard NumberGradeTupe Standard NumberGradeTupe Standard NumberGradeTupe Standard NumberGradeTupe Standard NumberGradeTupe Standard NumberGradeTupe G3454 STPG370 (STPG38)CA135Gr AC3601ERW360C1626St37.0CA49-112TS27bC559TS4CC002 A587-CS360C1629St37.0CA49-141TS37aC2604/2TS4C17172StE210.7CA49-142TS37aC2604/3TW4CTS37bCA49-150TSE235CA49-212TS37cCA49-242TS37cCA49-250TAE24aCA49-400TSE220CSTPG410 (STPG42)CA135GrBC3601ERW410C1626St44.0CA49-112TS42bC559TS9CA524-CS410CA49-141TS42bC2604/2TW9CA49-212TS42cC2604/3TW9CA49-242TS42cC3183E24-1CA49-250TSE26bCE24-2A49-400TSE250C