{"id":3935,"date":"2024-06-27T13:37:40","date_gmt":"2024-06-27T13:37:40","guid":{"rendered":"https:\/\/machining-quote.com\/?p=3935"},"modified":"2024-07-01T01:11:32","modified_gmt":"2024-07-01T01:11:32","slug":"ss303-and-ss420","status":"publish","type":"post","link":"https:\/\/machining-quote.com\/el\/bolg\/ss303-and-ss420\/","title":{"rendered":"\u03a0\u03bf\u03b9\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ac \u03bc\u03b5\u03c4\u03b1\u03be\u03cd SS303 \u03ba\u03b1\u03b9 SS420;"},"content":{"rendered":"<h4>\u03a0\u03af\u03bd\u03b1\u03ba\u03b1\u03c2 \u03c0\u03b5\u03c1\u03b9\u03b5\u03c7\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd<\/h4>\n<ul>\n<li><a href=\"#overview-of-ss303-and-ss420-stainless-steel-grades\">\u0395\u03c0\u03b9\u03c3\u03ba\u03cc\u03c0\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b2\u03b1\u03b8\u03bc\u03ce\u03bd \u03b1\u03c0\u03cc \u03b1\u03bd\u03bf\u03be\u03b5\u03af\u03b4\u03c9\u03c4\u03bf \u03c7\u03ac\u03bb\u03c5\u03b2\u03b1 SS303 \u03ba\u03b1\u03b9 SS420<\/a><\/li>\n<li><a href=\"#ss303-and-ss420-equivalent-material\">\u0399\u03c3\u03bf\u03b4\u03cd\u03bd\u03b1\u03bc\u03bf \u03c5\u03bb\u03b9\u03ba\u03cc SS303 \u03ba\u03b1\u03b9 SS420<\/a><\/li>\n<li><a href=\"#pros-and-cons-303-vs-420-stainless-steel\">\u03a0\u03bb\u03b5\u03bf\u03bd\u03b5\u03ba\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03bc\u03b5\u03b9\u03bf\u03bd\u03b5\u03ba\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1: 303 VS 420 \u03b1\u03c0\u03cc \u03b1\u03bd\u03bf\u03be\u03b5\u03af\u03b4\u03c9\u03c4\u03bf \u03c7\u03ac\u03bb\u03c5\u03b2\u03b1<\/a><\/li>\n<li><a href=\"#chemical-composition-differences-between-ss303-and-ss420\">\u0394\u03b9\u03b1\u03c6\u03bf\u03c1\u03ad\u03c2 \u03c7\u03b7\u03bc\u03b9\u03ba\u03ae\u03c2 \u03c3\u03cd\u03bd\u03b8\u03b5\u03c3\u03b7\u03c2 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd SS303 \u03ba\u03b1\u03b9 SS420<\/a><\/li>\n<li><a href=\"#corrosion-resistance-of-aisi-303-vs-aisi-420\">\u0391\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03c4\u03b7 \u03b4\u03b9\u03ac\u03b2\u03c1\u03c9\u03c3\u03b7 \u03c4\u03bf\u03c5 AISI 303 Vs. AISI 420<\/a><\/li>\n<li><a href=\"#mechanical-properties-comparing-ss303-and-ss420\">\u039c\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ad\u03c2 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2: \u03a3\u03cd\u03b3\u03ba\u03c1\u03b9\u03c3\u03b7 SS303 \u03ba\u03b1\u03b9 SS420<\/a><\/li>\n<li><a href=\"#heat-treatment-processes-for-en-1-4303-and-en-1-4028\">\u0394\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b5\u03c2 \u03b8\u03b5\u03c1\u03bc\u03b9\u03ba\u03ae\u03c2 \u03b5\u03c0\u03b5\u03be\u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1\u03c2 \u03b3\u03b9\u03b1 EN 1.4303 \u03ba\u03b1\u03b9 EN 1.4028<\/a><\/li>\n<li><a href=\"#machinability-of-ss303-and-ss420\">\u0395\u03c0\u03b5\u03be\u03b5\u03c1\u03b3\u03b1\u03c3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03c9\u03bd SS303 \u03ba\u03b1\u03b9 SS420<\/a><\/li>\n<li><a href=\"#applications-where-to-use-ss303-and-ss420\">\u0395\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2: \u03a0\u03bf\u03cd \u03bd\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b5\u03c4\u03b5 SS303 \u03ba\u03b1\u03b9 SS420<\/a><\/li>\n<li><a href=\"#conclusion\">\u03a3\u03c5\u03bc\u03c0\u03ad\u03c1\u03b1\u03c3\u03bc\u03b1<\/a><\/li>\n<\/ul>\n<h2 id=\"overview-of-ss303-and-ss420-stainless-steel-grades\">\u0395\u03c0\u03b9\u03c3\u03ba\u03cc\u03c0\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b2\u03b1\u03b8\u03bc\u03ce\u03bd \u03b1\u03c0\u03cc \u03b1\u03bd\u03bf\u03be\u03b5\u03af\u03b4\u03c9\u03c4\u03bf \u03c7\u03ac\u03bb\u03c5\u03b2\u03b1 SS303 \u03ba\u03b1\u03b9 SS420<\/h2>\n<p>\u039f \u03b1\u03bd\u03bf\u03be\u03b5\u03af\u03b4\u03c9\u03c4\u03bf\u03c2 \u03c7\u03ac\u03bb\u03c5\u03b2\u03b1\u03c2, \u03ad\u03bd\u03b1 \u03ba\u03c1\u03ac\u03bc\u03b1 \u03c0\u03bf\u03c5 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03af\u03c4\u03b1\u03b9 \u03ba\u03c5\u03c1\u03af\u03c9\u03c2 \u03b1\u03c0\u03cc \u03c3\u03af\u03b4\u03b7\u03c1\u03bf, \u03c7\u03c1\u03ce\u03bc\u03b9\u03bf \u03ba\u03b1\u03b9 \u03ac\u03bd\u03b8\u03c1\u03b1\u03ba\u03b1, \u03b5\u03af\u03bd\u03b1\u03b9 \u03b3\u03bd\u03c9\u03c3\u03c4\u03cc \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03c4\u03b7 \u03b4\u03b9\u03ac\u03b2\u03c1\u03c9\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c4\u03bf\u03c5. \u039c\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03c9\u03bd \u03c0\u03bf\u03bb\u03c5\u03ac\u03c1\u03b9\u03b8\u03bc\u03c9\u03bd \u03c0\u03bf\u03b9\u03bf\u03c4\u03ae\u03c4\u03c9\u03bd \u03b1\u03bd\u03bf\u03be\u03b5\u03af\u03b4\u03c9\u03c4\u03bf\u03c5 \u03c7\u03ac\u03bb\u03c5\u03b2\u03b1, \u03c4\u03b1 SS303 \u03ba\u03b1\u03b9 SS420 \u03be\u03b5\u03c7\u03c9\u03c1\u03af\u03b6\u03bf\u03c5\u03bd \u03b3\u03b9\u03b1 \u03c4\u03b1 \u03be\u03b5\u03c7\u03c9\u03c1\u03b9\u03c3\u03c4\u03ac \u03c7\u03b1\u03c1\u03b1\u03ba\u03c4\u03b7\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03ac \u03ba\u03b1\u03b9 \u03c4\u03b9\u03c2 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03c4\u03bf\u03c5\u03c2, \u03ba\u03c5\u03c1\u03af\u03c9\u03c2 \u03bb\u03cc\u03b3\u03c9 \u03c4\u03c9\u03bd \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b5\u03c4\u03b9\u03ba\u03ce\u03bd \u03c7\u03b7\u03bc\u03b9\u03ba\u03ce\u03bd \u03c3\u03c5\u03bd\u03b8\u03ad\u03c3\u03b5\u03c9\u03bd \u03ba\u03b1\u03b9 \u03c4\u03c9\u03bd \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ce\u03bd \u03b9\u03b4\u03b9\u03bf\u03c4\u03ae\u03c4\u03c9\u03bd \u03c4\u03bf\u03c5\u03c2. \u0397 \u03ba\u03b1\u03c4\u03b1\u03bd\u03cc\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ce\u03bd \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03b1\u03c5\u03c4\u03ce\u03bd \u03c4\u03c9\u03bd \u03b4\u03cd\u03bf \u03b2\u03b1\u03b8\u03bc\u03ce\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03b6\u03c9\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c3\u03b7\u03bc\u03b1\u03c3\u03af\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03c5\u03c2 \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03bf\u03cd\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03bf\u03c5\u03c2 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03c4\u03ad\u03c2 \u03c3\u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03c4\u03bf\u03c5 \u03ba\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03bf\u03c5 \u03c5\u03bb\u03b9\u03ba\u03bf\u03cd \u03b3\u03b9\u03b1 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03b5\u03c2 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2.<\/p>\n<h3>SS303 \u03b1\u03c0\u03cc \u03b1\u03bd\u03bf\u03be\u03b5\u03af\u03b4\u03c9\u03c4\u03bf \u03c7\u03ac\u03bb\u03c5\u03b2\u03b1<\/h3>\n<ul>\n<li>\u03c9\u03c3\u03c4\u03b5\u03bd\u03b9\u03c4\u03b9\u03ba\u03bf\u03cd \u03c4\u03cd\u03c0\u03bf\u03c5<\/li>\n<li>\u0395\u03be\u03b1\u03b9\u03c1\u03b5\u03c4\u03b9\u03ba\u03ae \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ae \u03b9\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1<\/li>\n<li>\u039c\u03b7 \u03bc\u03b1\u03b3\u03bd\u03b7\u03c4\u03b9\u03ba\u03cc<\/li>\n<li>\u03a0\u03b5\u03c1\u03b9\u03ad\u03c7\u03b5\u03b9 \u03b8\u03b5\u03af\u03bf (0,15% \u03ad\u03c9\u03c2 0,35%)<\/li>\n<li>\u03a7\u03b1\u03bc\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03b7 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03c4\u03b7 \u03b4\u03b9\u03ac\u03b2\u03c1\u03c9\u03c3\u03b7 \u03b1\u03c0\u03cc \u03ac\u03bb\u03bb\u03b5\u03c2 \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03c9\u03c3\u03c4\u03b5\u03bd\u03b9\u03c4\u03b9\u03ba\u03ce\u03bd<\/li>\n<\/ul>\n<h3>SS420 \u03b1\u03c0\u03cc \u03b1\u03bd\u03bf\u03be\u03b5\u03af\u03b4\u03c9\u03c4\u03bf \u03c7\u03ac\u03bb\u03c5\u03b2\u03b1<\/h3>\n<ul>\n<li>\u039c\u03b1\u03c1\u03c4\u03b5\u03bd\u03c3\u03b9\u03c4\u03b9\u03ba\u03cc\u03c2 \u03c4\u03cd\u03c0\u03bf\u03c2<\/li>\n<li>\u03a5\u03c8\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03b7 \u03c0\u03b5\u03c1\u03b9\u03b5\u03ba\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c3\u03b5 \u03ac\u03bd\u03b8\u03c1\u03b1\u03ba\u03b1 (0,15% \u03ad\u03c9\u03c2 0,40%)<\/li>\n<li>\u039c\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c3\u03ba\u03bb\u03b7\u03c1\u03c5\u03bd\u03b8\u03b5\u03af \u03bc\u03b5 \u03b8\u03b5\u03c1\u03bc\u03b9\u03ba\u03ae \u03b5\u03c0\u03b5\u03be\u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1<\/li>\n<li>\u03a5\u03c8\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03b7 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03ba\u03b1\u03b9 \u03c3\u03ba\u03bb\u03b7\u03c1\u03cc\u03c4\u03b7\u03c4\u03b1<\/li>\n<li>\u039a\u03b1\u03bb\u03ae \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03c4\u03b7 \u03b4\u03b9\u03ac\u03b2\u03c1\u03c9\u03c3\u03b7 \u03b1\u03bb\u03bb\u03ac \u03bb\u03b9\u03b3\u03cc\u03c4\u03b5\u03c1\u03bf \u03b1\u03c0\u03cc \u03c9\u03c3\u03c4\u03b5\u03bd\u03b9\u03c4\u03b9\u03ba\u03bf\u03cd\u03c2 \u03b2\u03b1\u03b8\u03bc\u03bf\u03cd\u03c2<\/li>\n<li>\u039c\u03b1\u03b3\u03bd\u03b7\u03c4\u03b9\u03ba\u03cc\u03c2<\/li>\n<\/ul>\n<h2 id=\"ss303-and-ss420-equivalent-material\">\u0399\u03c3\u03bf\u03b4\u03cd\u03bd\u03b1\u03bc\u03bf \u03c5\u03bb\u03b9\u03ba\u03cc SS303 \u03ba\u03b1\u03b9 SS420<\/h2>\n<p>\u0397 \u03ba\u03b1\u03c4\u03b1\u03bd\u03cc\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b9\u03c3\u03bf\u03b4\u03cd\u03bd\u03b1\u03bc\u03c9\u03bd \u03c5\u03bb\u03b9\u03ba\u03ce\u03bd \u03b3\u03b9\u03b1 \u03c4\u03b1 SS303 \u03ba\u03b1\u03b9 SS420 \u03b2\u03bf\u03b7\u03b8\u03ac \u03c3\u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03b5\u03bd\u03b1\u03bb\u03bb\u03b1\u03ba\u03c4\u03b9\u03ba\u03ce\u03bd \u03bb\u03cd\u03c3\u03b5\u03c9\u03bd \u03cc\u03c4\u03b1\u03bd \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9.<\/p>\n<h3>SS303 \u0399\u03c3\u03bf\u03b4\u03cd\u03bd\u03b1\u03bc\u03b1 \u03a5\u03bb\u03b9\u03ba\u03ac<\/h3>\n<ul>\n<li>AISI 303<\/li>\n<li>EN 1,4305<\/li>\n<\/ul>\n<h3>SS420 \u0399\u03c3\u03bf\u03b4\u03cd\u03bd\u03b1\u03bc\u03b1 \u03a5\u03bb\u03b9\u03ba\u03ac<\/h3>\n<ul>\n<li>AISI 420<\/li>\n<li>EN 1,4021<\/li>\n<\/ul>\n<h2 id=\"pros-and-cons-303-vs-420-stainless-steel\">\u03a0\u03bb\u03b5\u03bf\u03bd\u03b5\u03ba\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03bc\u03b5\u03b9\u03bf\u03bd\u03b5\u03ba\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1: 303 VS 420 \u03b1\u03c0\u03cc \u03b1\u03bd\u03bf\u03be\u03b5\u03af\u03b4\u03c9\u03c4\u03bf \u03c7\u03ac\u03bb\u03c5\u03b2\u03b1<\/h2>\n<p>\u0397 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03bc\u03b5\u03c4\u03b1\u03be\u03cd SS303 \u03ba\u03b1\u03b9 SS420 \u03b5\u03be\u03b1\u03c1\u03c4\u03ac\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03b5\u03c2 \u03b1\u03bd\u03ac\u03b3\u03ba\u03b5\u03c2 \u03c4\u03b7\u03c2 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ae\u03c2 \u03c3\u03b1\u03c2.<\/p>\n<h3>SS303<\/h3>\n<h4>\u03a0\u03bb\u03b5\u03bf\u03bd\u03b5\u03ba\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1<\/h4>\n<ul>\n<li>\u0395\u03be\u03b1\u03b9\u03c1\u03b5\u03c4\u03b9\u03ba\u03ae \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ae \u03b9\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1<\/li>\n<li>\u039c\u03b7 \u03bc\u03b1\u03b3\u03bd\u03b7\u03c4\u03b9\u03ba\u03cc<\/li>\n<li>\u039a\u03b1\u03bb\u03ae \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03c4\u03b7 \u03b4\u03b9\u03ac\u03b2\u03c1\u03c9\u03c3\u03b7 \u03b3\u03b9\u03b1 \u03b3\u03b5\u03bd\u03b9\u03ba\u03ae \u03c7\u03c1\u03ae\u03c3\u03b7<\/li>\n<\/ul>\n<h4>\u039c\u03b5\u03b9\u03bf\u03bd\u03b5\u03ba\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1<\/h4>\n<ul>\n<li>\u03a7\u03b1\u03bc\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03b7 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03c4\u03b7 \u03b4\u03b9\u03ac\u03b2\u03c1\u03c9\u03c3\u03b7 \u03c3\u03b5 \u03c0\u03b5\u03c1\u03b9\u03b2\u03ac\u03bb\u03bb\u03bf\u03bd\u03c4\u03b1 \u03c7\u03bb\u03c9\u03c1\u03af\u03bf\u03c5<\/li>\n<li>\u038c\u03c7\u03b9 \u03c4\u03cc\u03c3\u03bf \u03b9\u03c3\u03c7\u03c5\u03c1\u03cc \u03ae \u03c3\u03ba\u03bb\u03b7\u03c1\u03cc \u03cc\u03c3\u03bf \u03c4\u03bf SS420<\/li>\n<\/ul>\n<h3>SS420<\/h3>\n<h4>\u03a0\u03bb\u03b5\u03bf\u03bd\u03b5\u03ba\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1<\/h4>\n<ul>\n<li>\u03a5\u03c8\u03b7\u03bb\u03ae \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03ba\u03b1\u03b9 \u03c3\u03ba\u03bb\u03b7\u03c1\u03cc\u03c4\u03b7\u03c4\u03b1<\/li>\n<li>\u039c\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c3\u03ba\u03bb\u03b7\u03c1\u03c5\u03bd\u03b8\u03b5\u03af \u03bc\u03b5 \u03b8\u03b5\u03c1\u03bc\u03b9\u03ba\u03ae \u03b5\u03c0\u03b5\u03be\u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1<\/li>\n<li>\u039a\u03b1\u03bb\u03ae \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03c4\u03b7 \u03c6\u03b8\u03bf\u03c1\u03ac<\/li>\n<\/ul>\n<h4>\u039c\u03b5\u03b9\u03bf\u03bd\u03b5\u03ba\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1<\/h4>\n<ul>\n<li>\u03a7\u03b1\u03bc\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03b7 \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ae \u03b9\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1<\/li>\n<li>\u0391\u03c0\u03b1\u03b9\u03c4\u03b5\u03af \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b7 \u03c3\u03c5\u03bd\u03c4\u03ae\u03c1\u03b7\u03c3\u03b7 \u03c3\u03b5 \u03b4\u03b9\u03b1\u03b2\u03c1\u03c9\u03c4\u03b9\u03ba\u03ac \u03c0\u03b5\u03c1\u03b9\u03b2\u03ac\u03bb\u03bb\u03bf\u03bd\u03c4\u03b1<\/li>\n<\/ul>\n<h2 id=\"chemical-composition-differences-between-ss303-and-ss420\">\u0394\u03b9\u03b1\u03c6\u03bf\u03c1\u03ad\u03c2 \u03c7\u03b7\u03bc\u03b9\u03ba\u03ae\u03c2 \u03c3\u03cd\u03bd\u03b8\u03b5\u03c3\u03b7\u03c2 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd SS303 \u03ba\u03b1\u03b9 SS420<\/h2>\n<p>\u039f\u03b9 \u03c7\u03b7\u03bc\u03b9\u03ba\u03ad\u03c2 \u03c3\u03c5\u03bd\u03b8\u03ad\u03c3\u03b5\u03b9\u03c2 \u03c4\u03c9\u03bd SS303 \u03ba\u03b1\u03b9 SS420 \u03ba\u03b1\u03b8\u03bf\u03c1\u03af\u03b6\u03bf\u03c5\u03bd \u03c4\u03b9\u03c2 \u03bc\u03bf\u03bd\u03b1\u03b4\u03b9\u03ba\u03ad\u03c2 \u03c4\u03bf\u03c5\u03c2 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b9\u03c2 \u03ba\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03b5\u03c2 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03c4\u03bf\u03c5\u03c2.<\/p>\n<h3>SS303 \u03a7\u03b7\u03bc\u03b9\u03ba\u03ae \u03a3\u03cd\u03bd\u03b8\u03b5\u03c3\u03b7<\/h3>\n<table border=\"1\">\n<tbody>\n<tr>\n<th>\u03a3\u03c4\u03bf\u03b9\u03c7\u03b5\u03af\u03bf<\/th>\n<th>\u03a0\u03bf\u03c3\u03bf\u03c3\u03c4\u03cc<\/th>\n<\/tr>\n<tr>\n<td>\u03a7\u03c1\u03ce\u03bc\u03b9\u03bf<\/td>\n<td>17-19%<\/td>\n<\/tr>\n<tr>\n<td>\u039d\u03b9\u03ba\u03ad\u03bb\u03b9\u03bf<\/td>\n<td>8-10%<\/td>\n<\/tr>\n<tr>\n<td>\u0398\u03b5\u03af\u03bf<\/td>\n<td>0.15-0.35%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>SS420 \u03a7\u03b7\u03bc\u03b9\u03ba\u03ae \u03a3\u03cd\u03bd\u03b8\u03b5\u03c3\u03b7<\/h3>\n<table border=\"1\">\n<tbody>\n<tr>\n<th>\u03a3\u03c4\u03bf\u03b9\u03c7\u03b5\u03af\u03bf<\/th>\n<th>\u03a0\u03bf\u03c3\u03bf\u03c3\u03c4\u03cc<\/th>\n<\/tr>\n<tr>\n<td>\u03a7\u03c1\u03ce\u03bc\u03b9\u03bf<\/td>\n<td>12-14%<\/td>\n<\/tr>\n<tr>\n<td>\u0386\u03bd\u03b8\u03c1\u03b1\u03ba\u03b1\u03c2<\/td>\n<td>0.15-0.40%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"corrosion-resistance-of-aisi-303-vs-aisi-420\">\u0391\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03c4\u03b7 \u03b4\u03b9\u03ac\u03b2\u03c1\u03c9\u03c3\u03b7 \u03c4\u03bf\u03c5 AISI 303 Vs. AISI 420<\/h2>\n<p>\u0397 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03c4\u03b7 \u03b4\u03b9\u03ac\u03b2\u03c1\u03c9\u03c3\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03ad\u03bd\u03b1\u03c2 \u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03bf\u03c2 \u03c0\u03b1\u03c1\u03ac\u03b3\u03bf\u03bd\u03c4\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03bf\u03c5 AISI 303 \u03ba\u03b1\u03b9 \u03c4\u03bf\u03c5 AISI 420 \u03b3\u03b9\u03b1 \u03b4\u03b9\u03ac\u03c6\u03bf\u03c1\u03b5\u03c2 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2.<\/p>\n<h3>AISI 303 \u0391\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03c4\u03b7 \u03b4\u03b9\u03ac\u03b2\u03c1\u03c9\u03c3\u03b7<\/h3>\n<ul>\n<li>\u039a\u03b1\u03bb\u03cc \u03c3\u03b5 \u03bb\u03b9\u03b3\u03cc\u03c4\u03b5\u03c1\u03bf \u03b5\u03c0\u03b9\u03b8\u03b5\u03c4\u03b9\u03ba\u03ac \u03c0\u03b5\u03c1\u03b9\u03b2\u03ac\u03bb\u03bb\u03bf\u03bd\u03c4\u03b1<\/li>\n<li>\u0395\u03c0\u03b9\u03c1\u03c1\u03b5\u03c0\u03ae \u03c3\u03c4\u03b7 \u03b4\u03b9\u03ac\u03b2\u03c1\u03c9\u03c3\u03b7 \u03bc\u03b5 \u03b1\u03c5\u03bb\u03ac\u03ba\u03b9\u03b1 \u03ba\u03b1\u03b9 \u03c1\u03c9\u03b3\u03bc\u03ad\u03c2 \u03c3\u03b5 \u03c0\u03b5\u03c1\u03b9\u03b2\u03ac\u03bb\u03bb\u03bf\u03bd\u03c4\u03b1 \u03c7\u03bb\u03c9\u03c1\u03af\u03bf\u03c5<\/li>\n<\/ul>\n<h3>AISI 420 \u0391\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03c4\u03b7 \u03b4\u03b9\u03ac\u03b2\u03c1\u03c9\u03c3\u03b7<\/h3>\n<ul>\n<li>\u039a\u03b1\u03bb\u03cc \u03b5\u03bd\u03ac\u03bd\u03c4\u03b9\u03b1 \u03c3\u03b5 \u03b1\u03c4\u03bc\u03bf\u03c3\u03c6\u03b1\u03b9\u03c1\u03b9\u03ba\u03ad\u03c2 \u03c3\u03c5\u03bd\u03b8\u03ae\u03ba\u03b5\u03c2, \u03bd\u03b5\u03c1\u03cc \u03ba\u03b1\u03b9 \u03ae\u03c0\u03b9\u03b1 \u03bf\u03be\u03ad\u03b1<\/li>\n<li>\u0395\u03c5\u03ac\u03bb\u03c9\u03c4\u03bf \u03c3\u03c4\u03b1 \u03c7\u03bb\u03c9\u03c1\u03af\u03b4\u03b9\u03b1 \u03ba\u03b1\u03b9 \u03c3\u03c4\u03b9\u03c2 \u03b5\u03c0\u03b9\u03b8\u03b5\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c0\u03b5\u03c1\u03b9\u03b2\u03b1\u03bb\u03bb\u03bf\u03bd\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c3\u03c5\u03bd\u03b8\u03ae\u03ba\u03b5\u03c2<\/li>\n<\/ul>\n<h2 id=\"mechanical-properties-comparing-ss303-and-ss420\">\u039c\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ad\u03c2 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2: \u03a3\u03cd\u03b3\u03ba\u03c1\u03b9\u03c3\u03b7 SS303 \u03ba\u03b1\u03b9 SS420<\/h2>\n<p>\u0397 \u03ba\u03b1\u03c4\u03b1\u03bd\u03cc\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ce\u03bd \u03b9\u03b4\u03b9\u03bf\u03c4\u03ae\u03c4\u03c9\u03bd \u03c4\u03c9\u03bd SS303 \u03ba\u03b1\u03b9 SS420 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03b7 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03c4\u03bf\u03c5 \u03c3\u03c9\u03c3\u03c4\u03bf\u03cd \u03c5\u03bb\u03b9\u03ba\u03bf\u03cd \u03b3\u03b9\u03b1 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03b5\u03c2 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2.<\/p>\n<h3>SS303 \u039c\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ad\u03c2 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2<\/h3>\n<ul>\n<li>\u0391\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03b5 \u03b5\u03c6\u03b5\u03bb\u03ba\u03c5\u03c3\u03bc\u03cc: 620-850 MPa<\/li>\n<li>\u0391\u03bd\u03c4\u03bf\u03c7\u03ae \u03b4\u03b9\u03b1\u03c1\u03c1\u03bf\u03ae\u03c2: 240-450 MPa<\/li>\n<li>\u0395\u03c0\u03b9\u03bc\u03ae\u03ba\u03c5\u03bd\u03c3\u03b7 \u03c3\u03c4\u03bf \u03c3\u03c0\u03ac\u03c3\u03b9\u03bc\u03bf: ~50%<\/li>\n<\/ul>\n<h3>SS420 \u039c\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ad\u03c2 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2<\/h3>\n<ul>\n<li>\u0391\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03b5 \u03b5\u03c6\u03b5\u03bb\u03ba\u03c5\u03c3\u03bc\u03cc: 700-1500 MPa<\/li>\n<li>\u0391\u03bd\u03c4\u03bf\u03c7\u03ae \u03b4\u03b9\u03b1\u03c1\u03c1\u03bf\u03ae\u03c2: 500-1000 MPa<\/li>\n<li>\u0395\u03c0\u03b9\u03bc\u03ae\u03ba\u03c5\u03bd\u03c3\u03b7 \u03c3\u03c4\u03bf \u03b4\u03b9\u03ac\u03bb\u03b5\u03b9\u03bc\u03bc\u03b1: 10-25%<\/li>\n<\/ul>\n<h2 id=\"heat-treatment-processes-for-en-1-4303-and-en-1-4028\">\u0394\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b5\u03c2 \u03b8\u03b5\u03c1\u03bc\u03b9\u03ba\u03ae\u03c2 \u03b5\u03c0\u03b5\u03be\u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1\u03c2 \u03b3\u03b9\u03b1 EN 1.4303 \u03ba\u03b1\u03b9 EN 1.4028<\/h2>\n<p>\u039f\u03b9 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b5\u03c2 \u03b8\u03b5\u03c1\u03bc\u03b9\u03ba\u03ae\u03c2 \u03b5\u03c0\u03b5\u03be\u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b6\u03c9\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c3\u03b7\u03bc\u03b1\u03c3\u03af\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b5\u03c0\u03af\u03c4\u03b5\u03c5\u03be\u03b7 \u03c4\u03c9\u03bd \u03b5\u03c0\u03b9\u03b8\u03c5\u03bc\u03b7\u03c4\u03ce\u03bd \u03b9\u03b4\u03b9\u03bf\u03c4\u03ae\u03c4\u03c9\u03bd \u03c3\u03c4\u03bf\u03c5\u03c2 \u03b1\u03bd\u03bf\u03be\u03b5\u03af\u03b4\u03c9\u03c4\u03bf\u03c5\u03c2 \u03c7\u03ac\u03bb\u03c5\u03b2\u03b5\u03c2 EN 1.4303 (SS303) \u03ba\u03b1\u03b9 EN 1.4028 (SS420).<\/p>\n<h3>EN 1.4303 (SS303) \u0398\u03b5\u03c1\u03bc\u03b9\u03ba\u03ae \u03b5\u03c0\u03b5\u03be\u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1<\/h3>\n<ul>\n<li>\u0391\u03bd\u03cc\u03c0\u03c4\u03b7\u03c3\u03b7: 1010-1120\u00b0C, \u03bc\u03b5\u03c4\u03ac \u03c4\u03b1\u03c7\u03b5\u03af\u03b1 \u03c8\u03cd\u03be\u03b7<\/li>\n<li>\u0391\u03bd\u03b1\u03ba\u03bf\u03c5\u03c6\u03af\u03b6\u03b5\u03b9 \u03b1\u03c0\u03cc \u03c4\u03bf \u03c3\u03c4\u03c1\u03b5\u03c2, \u03b2\u03b5\u03bb\u03c4\u03b9\u03ce\u03bd\u03b5\u03b9 \u03c4\u03b7 \u03bc\u03bf\u03c1\u03c6\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03c3\u03c5\u03b3\u03ba\u03bf\u03bb\u03bb\u03b7\u03c3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1<\/li>\n<\/ul>\n<h3>EN 1.4028 (SS420) \u0398\u03b5\u03c1\u03bc\u03b9\u03ba\u03ae \u03b5\u03c0\u03b5\u03be\u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1<\/h3>\n<ul>\n<li>\u03a3\u03ba\u03bb\u03ae\u03c1\u03c5\u03bd\u03c3\u03b7: 950-1050\u00b0C, \u03c3\u03c4\u03b7 \u03c3\u03c5\u03bd\u03ad\u03c7\u03b5\u03b9\u03b1 \u03c3\u03b2\u03ae\u03c3\u03b9\u03bc\u03bf \u03c3\u03b5 \u03bb\u03ac\u03b4\u03b9 \u03ae \u03b1\u03ad\u03c1\u03b1<\/li>\n<li>\u0398\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b1: 100-400\u00b0C \u03b3\u03b9\u03b1 \u03c1\u03cd\u03b8\u03bc\u03b9\u03c3\u03b7 \u03c3\u03ba\u03bb\u03b7\u03c1\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03ba\u03bb\u03b7\u03c1\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2<\/li>\n<\/ul>\n<h2 id=\"machinability-of-ss303-and-ss420\">\u0395\u03c0\u03b5\u03be\u03b5\u03c1\u03b3\u03b1\u03c3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03c9\u03bd SS303 \u03ba\u03b1\u03b9 SS420<\/h2>\n<p>\u0397 \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ae \u03b9\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03c9\u03bd \u03b1\u03bd\u03bf\u03be\u03b5\u03af\u03b4\u03c9\u03c4\u03c9\u03bd \u03c7\u03ac\u03bb\u03c5\u03b2\u03b1 SS303 \u03ba\u03b1\u03b9 SS420 \u03c0\u03bf\u03b9\u03ba\u03af\u03bb\u03bb\u03b5\u03b9 \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03ac, \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b7\u03bd \u03ba\u03b1\u03c4\u03b1\u03bb\u03bb\u03b7\u03bb\u03cc\u03c4\u03b7\u03c4\u03ac \u03c4\u03bf\u03c5\u03c2 \u03b3\u03b9\u03b1 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b5\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b5\u03c2 \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03ae\u03c2.<\/p>\n<h3>SS303 \u0395\u03c0\u03b5\u03be\u03b5\u03c1\u03b3\u03b1\u03c3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1<\/h3>\n<ul>\n<li>\u0395\u03bd\u03b9\u03c3\u03c7\u03c5\u03bc\u03ad\u03bd\u03bf \u03bc\u03b5 \u03c0\u03c1\u03bf\u03c3\u03b8\u03ae\u03ba\u03b7 \u03b8\u03b5\u03af\u03bf\u03c5<\/li>\n<li>\u039c\u03b5\u03b9\u03ce\u03bd\u03b5\u03b9 \u03c4\u03b7 \u03c6\u03b8\u03bf\u03c1\u03ac \u03c4\u03bf\u03c5 \u03b5\u03c1\u03b3\u03b1\u03bb\u03b5\u03af\u03bf\u03c5 \u03ba\u03b1\u03b9 \u03b1\u03c5\u03be\u03ac\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03ba\u03b1\u03c4\u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1\u03c2<\/li>\n<li>\u0399\u03b4\u03b1\u03bd\u03b9\u03ba\u03cc \u03b3\u03b9\u03b1 \u03b5\u03be\u03b1\u03c1\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c0\u03bf\u03c5 \u03b1\u03c0\u03b1\u03b9\u03c4\u03bf\u03cd\u03bd \u03b5\u03ba\u03c4\u03b5\u03c4\u03b1\u03bc\u03ad\u03bd\u03b7 \u03ba\u03b1\u03c4\u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1<\/li>\n<\/ul>\n<h3>SS420 \u0395\u03c0\u03b5\u03be\u03b5\u03c1\u03b3\u03b1\u03c3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1<\/h3>\n<ul>\n<li>\u0394\u03c5\u03c3\u03ba\u03bf\u03bb\u03cc\u03c4\u03b5\u03c1\u03bf \u03c3\u03c4\u03b7 \u03bc\u03b7\u03c7\u03b1\u03bd\u03ae \u03bb\u03cc\u03b3\u03c9 \u03c5\u03c8\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03b7\u03c2 \u03c0\u03b5\u03c1\u03b9\u03b5\u03ba\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03c3\u03b5 \u03ac\u03bd\u03b8\u03c1\u03b1\u03ba\u03b1<\/li>\n<li>\u0391\u03c0\u03b1\u03b9\u03c4\u03b5\u03af \u03c3\u03c4\u03b9\u03b2\u03b1\u03c1\u03ac, \u03b1\u03bd\u03b8\u03b5\u03ba\u03c4\u03b9\u03ba\u03ac \u03c3\u03c4\u03b7 \u03c6\u03b8\u03bf\u03c1\u03ac \u03b5\u03c1\u03b3\u03b1\u03bb\u03b5\u03af\u03b1<\/li>\n<li>\u0397 \u03b1\u03bd\u03cc\u03c0\u03c4\u03b7\u03c3\u03b7 \u03c0\u03c1\u03b9\u03bd \u03b1\u03c0\u03cc \u03c4\u03b7 \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ae \u03ba\u03b1\u03c4\u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b2\u03b5\u03bb\u03c4\u03b9\u03ce\u03c3\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b5\u03c1\u03b3\u03b1\u03c3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1<\/li>\n<\/ul>\n<h2 id=\"applications-where-to-use-ss303-and-ss420\">\u0395\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2: \u03a0\u03bf\u03cd \u03bd\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b5\u03c4\u03b5 SS303 \u03ba\u03b1\u03b9 SS420<\/h2>\n<p>\u0397 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03c4\u03bf\u03c5 \u03ba\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03bf\u03c5 \u03b1\u03bd\u03bf\u03be\u03b5\u03af\u03b4\u03c9\u03c4\u03bf\u03c5 \u03c7\u03ac\u03bb\u03c5\u03b2\u03b1 \u03b3\u03b9\u03b1 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03b5\u03c2 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03b5\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03b5\u03b9 \u03b2\u03ad\u03bb\u03c4\u03b9\u03c3\u03c4\u03b7 \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03bc\u03b1\u03ba\u03c1\u03bf\u03b6\u03c9\u03af\u03b1.<\/p>\n<h3>\u0395\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 SS303<\/h3>\n<ul>\n<li>\u0395\u03be\u03b1\u03c1\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1<\/li>\n<li>\u0392\u03af\u03b4\u03b5\u03c2<\/li>\n<li>\u0391\u03bd\u03c4\u03b1\u03bb\u03bb\u03b1\u03ba\u03c4\u03b9\u03ba\u03ac \u03bc\u03b7\u03c7\u03b1\u03bd\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd<\/li>\n<li>\u0394\u03b5\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03b9\u03b4\u03b1\u03bd\u03b9\u03ba\u03cc \u03b3\u03b9\u03b1 \u03c3\u03ba\u03bb\u03b7\u03c1\u03ac \u03b4\u03b9\u03b1\u03b2\u03c1\u03c9\u03c4\u03b9\u03ba\u03ac \u03c0\u03b5\u03c1\u03b9\u03b2\u03ac\u03bb\u03bb\u03bf\u03bd\u03c4\u03b1<\/li>\n<\/ul>\n<h3>\u0395\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 SS420<\/h3>\n<ul>\n<li>\u039c\u03b1\u03c7\u03b1\u03b9\u03c1\u03bf\u03c0\u03ae\u03c1\u03bf\u03c5\u03bd\u03b1<\/li>\n<li>\u03a7\u03b5\u03b9\u03c1\u03bf\u03c5\u03c1\u03b3\u03b9\u03ba\u03ac \u03b5\u03c1\u03b3\u03b1\u03bb\u03b5\u03af\u03b1<\/li>\n<li>\u039b\u03b5\u03c0\u03af\u03b4\u03b5\u03c2<\/li>\n<li>\u0395\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03c0\u03bf\u03c5 \u03b1\u03c0\u03b1\u03b9\u03c4\u03bf\u03cd\u03bd \u03c5\u03c8\u03b7\u03bb\u03ae \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03c4\u03b7 \u03c6\u03b8\u03bf\u03c1\u03ac<\/li>\n<\/ul>\n<h2 id=\"conclusion\">\u03a3\u03c5\u03bc\u03c0\u03ad\u03c1\u03b1\u03c3\u03bc\u03b1<\/h2>\n<p>\u0397 \u03ba\u03cd\u03c1\u03b9\u03b1 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ac \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03bf\u03c5 \u03b1\u03bd\u03bf\u03be\u03b5\u03af\u03b4\u03c9\u03c4\u03bf\u03c5 \u03c7\u03ac\u03bb\u03c5\u03b2\u03b1 SS303 \u03ba\u03b1\u03b9 SS420 \u03ad\u03b3\u03ba\u03b5\u03b9\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7 \u03c3\u03cd\u03bd\u03b8\u03b5\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03c4\u03b9\u03c2 \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ad\u03c2 \u03c4\u03bf\u03c5\u03c2 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2. \u03a4\u03bf SS303 \u03b5\u03af\u03bd\u03b1\u03b9 \u03ad\u03bd\u03b1\u03c2 \u03b1\u03bd\u03bf\u03be\u03b5\u03af\u03b4\u03c9\u03c4\u03bf\u03c2 \u03c7\u03ac\u03bb\u03c5\u03b2\u03b1\u03c2 \u03c9\u03c3\u03c4\u03b5\u03bd\u03b9\u03c4\u03b9\u03ba\u03bf\u03cd \u03c4\u03cd\u03c0\u03bf\u03c5 \u03b3\u03bd\u03c9\u03c3\u03c4\u03cc\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03ba\u03b1\u03bb\u03ae \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ae \u03c4\u03bf\u03c5 \u03b9\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af\u03c4\u03b1\u03b9 \u03ba\u03c5\u03c1\u03af\u03c9\u03c2 \u03cc\u03c0\u03bf\u03c5 \u03b1\u03c0\u03b1\u03b9\u03c4\u03b5\u03af\u03c4\u03b1\u03b9 \u03b5\u03c5\u03ba\u03bf\u03bb\u03af\u03b1 \u03ba\u03b1\u03c4\u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1\u03c2. \u03a0\u03b5\u03c1\u03b9\u03ad\u03c7\u03b5\u03b9 \u03b8\u03b5\u03af\u03bf 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