EN 10217-7 2005 is for “Welded steel tubes for pressure purposes – Technical delivery conditions”. It covers a number of austenitic and duplex stainless steel. The mechanical properties are summarised in the table below. This article is not a substitute for the full standard. Steel grade Proof strength min MPA Tensile strengthMPa Elongation A min % Resistance to intergranular corrosion Steel name Steel number Rp0.2 Rp1.0 Rm long trans Austenitic X2CrNi18-9 1.4307 180 215 470/670 40 35 Yes X2CrNi19-11 1.4306 180 215 460/680 40 35 Yes X2CrNiN18-10 1.4311 270 305 550/760 35 30 Yes X5CrNi18-10  1.4301 195 230 500/700 40 35 Yes* X6CrNiTi18-10 1.4541 200 235 500/730 35 30 Yes X6CrNiNb18-10 1.4550 205 240 510/740 35 30 Yes X2CrNiMo17-12-2 1.4404 190 225 490/690 40 30 Yes X5CrNiMo17-12-2 1.4401 205 240 510/710 40 30 Yes* XCrNiMoTi17-12-2 1.4571 210 245 500/730 35 30 Yes X2CrNiMo17-12-3 1.4432 190 225 490/690 40 30 Yes X2CrNiMoN17-13-3 1.4429 295 330 580/800 35 30 Yes…

ASME SA213/SA213M, ASTM A370, ASME SA789 / SA789M Paslanmaz Çelik Mekanik Özelliklerine Göre Sınıf Çekme Dayanımı min.ksi [MPa] Akma Dayanımı min.ksi [MPa] 2 inç veya 50 mm uzunlukta uzama % (min) Sertlik (Maks) ASTM E18Brinell Sertlik (Maks) ASTM E18Rockwell 201 95 [655] 38 [260] 35 219 HBW 95 HRB 304 75 [515] 30 [205] 35 192 HBW 90 HRB 304L 70 [485] 25 [170] 35 192 HBW 90 HRB 304H 75 [515] 30 [205] 35 192 HBW 90 HRB 304N 80 [550] 35 [240] 35 192 HBW 90 HRB 309S 75 [515] 30 [205] 35 192 HBW 90 HRB 309H 75 [515] 30 [205] 35 192 HBW 90 HRB 310S 75 [515] 30 [205] 35 192 HBW 90 HRB 310H 75 [515] 30 [205] 35 192 HBW 90 HRB 316 75 [515] 30 [205] 35 192 HBW 90 HRB 316L 70 [485] 25 [170] 35 192 HBW 90 HRB 316H 75 [515] 30 [205] 35 192 HBW 90...