{"id":17069,"date":"2025-06-06T16:29:49","date_gmt":"2025-06-06T08:29:49","guid":{"rendered":"https:\/\/daxuns.com\/?p=17069"},"modified":"2025-06-06T16:29:49","modified_gmt":"2025-06-06T08:29:49","slug":"the-ultimate-secret-of-duplex-stainless-steel","status":"publish","type":"post","link":"https:\/\/daxuns.com\/ko\/the-ultimate-secret-of-duplex-stainless-steel\/","title":{"rendered":"\ub4c0\ud50c\ub809\uc2a4 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \uc2a4\ud2f8\uc758 \uad81\uadf9\uc801\uc778 \ube44\ubc00"},"content":{"rendered":"

\ub4c0\ud50c\ub809\uc2a4 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \uc2a4\ud2f8\uc740 \uace0\uac15\ub3c4, \uc6b0\uc218\ud55c \ub0b4\uc2dd\uc131 \ubc0f \uacbd\uc81c\uc131\uc744 \uac16\ucd98 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \uc18c\uc7ac\uc785\ub2c8\ub2e4. \uc11d\uc720\ud654\ud559, \ud574\uc591 \uacf5\ud559, \uc6d0\uc790\ub825, \uc2dd\ud488 \uac00\uacf5 \ubc0f \uae30\ud0c0 \ubd84\uc57c\uc5d0\uc11c \ub110\ub9ac \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc774 \ube14\ub85c\uadf8\uc5d0\uc11c\ub294 \ub4c0\ud50c\ub809\uc2a4 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \uc815\uc758, \ud2b9\uc131, \ubd84\ub958, \uc6a9\ub3c4 \ubc0f \uc7ac\ub8cc \uc120\ud0dd \ubc29\ubc95\uc744 \uc18c\uac1c\ud558\uc5ec \uc801\uc808\ud55c \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \ub4f1\uae09\uc744 \ub354 \uc798 \uc120\ud0dd\ud560 \uc218 \uc788\ub3c4\ub85d \ub3c4\uc640\ub4dc\ub9bd\ub2c8\ub2e4.<\/p>\n

\ub4c0\ud50c\ub809\uc2a4 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \uc2a4\ud2f8\uc758 \uae30\ubcf8 \ud2b9\uc131<\/span><\/h3>\n

\ub4c0\ud50c\ub809\uc2a4 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \uc8fc\ubaa9\ud560 \ub9cc\ud55c \ud2b9\uc9d5\uc740 \ubbf8\uc138 \uad6c\uc870\uc5d0 \ud398\ub77c\uc774\ud2b8(\u03b1-Fe)\uc640 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8(\u03b3-Fe)\uc758 \ub450 \uac00\uc9c0 \uacb0\uc815 \uad6c\uc870\uac00 \uacf5\uc874\ud55c\ub2e4\ub294 \uc810\uc774\uba70, \uc774 \ub450 \uac00\uc9c0\uac00 \uc77c\ubc18\uc801\uc73c\ub85c 1:1\uc5d0 \uac00\uae4c\uc6b4 \ubd80\ud53c \ube44\uc728\ub85c \uacf5\uc874\ud569\ub2c8\ub2e4. \uc774 \uc774\uc911 \uad6c\uc870\ub294 \ud06c\ub86c(Cr), \ub2c8\ucf08(Ni), \ubab0\ub9ac\ube0c\ub374(Mo)\uacfc \uac19\uc740 \uc6d0\uc18c\uc758 \ube44\uc728\uc744 \uc815\ubc00\ud558\uac8c \uc81c\uc5b4\ud568\uc73c\ub85c\uc368 \ub2ec\uc131\ub418\ub294\ub370, \ud06c\ub86c\uc740 \ud398\ub77c\uc774\ud2b8 \ud615\uc131 \uc6d0\uc18c\uc774\uace0 \ub2c8\ucf08\uc740 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \uc548\uc815\ud654\uc81c\uc785\ub2c8\ub2e4. \uc774 \ub450 \uac00\uc9c0\uc758 \uade0\ud615\uc73c\ub85c \uc778\ud574 \ub450 \ub2e8\uacc4\uc758 \ube44\uc728\uc774 50:50\uc5d0 \uac00\uae4c\uc6cc\uc9d1\ub2c8\ub2e4. \uc9c8\uc18c\ub97c \ucca8\uac00\ud558\uba74 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \uc0c1\uc774 \ub354\uc6b1 \uc548\uc815\ud654\ub418\uace0 \uac15\ub3c4\uc640 \ub0b4\uc2dd\uc131\uc774 \ud5a5\uc0c1\ub429\ub2c8\ub2e4.<\/p>\n

 <\/p>\n

\uc131\ub2a5 \uce21\uba74\uc5d0\uc11c \ud398\ub77c\uc774\ud2b8 \uc0c1\uc740 \uc18c\uc7ac\uc5d0 \ub192\uc740 \uac15\ub3c4\uc640 \uc5fc\ud654\ubb3c \uc751\ub825 \ubd80\uc2dd \uade0\uc5f4\uc5d0 \ub300\ud55c \uc800\ud56d\uc131\uc744 \ubd80\uc5ec\ud558\uace0 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \uc0c1\uc740 \uc778\uc131 \ubc0f \ub0b4\uc0b0\uc131\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc2dc\ub108\uc9c0 \ud6a8\uacfc \ub355\ubd84\uc5d0 \ub4c0\ud50c\ub809\uc2a4 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \uc2a4\ud2f8\uc740 \uac15\ub3c4, \ub0b4\uc2dd\uc131, \uc778\uc131 \uc0ac\uc774\uc5d0\uc11c \ucd5c\uc0c1\uc758 \uade0\ud615\uc744 \uc774\ub8f0 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc77c\ubc18 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uacc4 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15(304 \ub4f1)\uc740 \uc5fc\ud654\ubb3c \uc774\uc628 \ud658\uacbd\uc5d0\uc11c \uc751\ub825 \ubd80\uc2dd \uade0\uc5f4\uc774 \ubc1c\uc0dd\ud558\uae30 \uc26c\uc6b4 \ubc18\uba74, \uace0\ud06c\ub86c \ud398\ub77c\uc774\ud2b8\uacc4 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc740 \ub354 \ubd80\uc11c\uc9c0\uae30 \uc27d\uc2b5\ub2c8\ub2e4. \ub4c0\ud50c\ub809\uc2a4 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \uc2a4\ud2f8\uc740 \ub450 \uac00\uc9c0 \uc720\ud615\uc758 \uc7ac\ub8cc\uc758 \ub2e8\uc810\uc744 \uadf9\ubcf5\ud569\ub2c8\ub2e4. \ud14c\uc2a4\ud2b8 \ub370\uc774\ud130\uc5d0 \ub530\ub974\uba74 \ub4c0\ud50c\ub809\uc2a4 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \ud56d\ubcf5 \uac15\ub3c4\ub294 304 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15(\uc57d 205MPa)\uc758 2\ubc30 \uc774\uc0c1\uc778 400-550MPa\uc5d0 \ub2ec\ud558\uba70, \uc5f0\uc2e0\uc728\uc740 25%-40%\ub85c \uace0\uac15\ub3c4 \uc800\ud569\uae08\uac15\ubcf4\ub2e4 \ud6e8\uc52c \ub192\uc740 \uac83\uc73c\ub85c \ub098\ud0c0\ub0ac\uc2b5\ub2c8\ub2e4.<\/p>\n

 <\/p>\n

\ub0b4\uc2dd\uc131 \uce21\uba74\uc5d0\uc11c \ub4c0\ud50c\ub809\uc2a4 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \uc2a4\ud2f8\uc758 \ub0b4\uacf5\uadf9 \uc800\ud56d \ub4f1\uac00\ubb3c(PREN)\uc740 \uacf5\uc2dd\uc73c\ub85c \uacc4\uc0b0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n

PREN= %Cr + 3.3 \u00d7%Mo + 16 \u00d7%N<\/p>\n

Take 2205 grade as an example, Cr 22%, Mo 3%, N 0.15%, its PREN value reaches 33-34, which is much higher than 304 stainless steel (PREN\u224818) and 316 stainless steel (PREN\u224824). More importantly, duplex stainless steel shows strong resistance to chloride stress corrosion cracking (SCC) – in a seawater environment containing chloride ions, ordinary austenitic stainless steel may crack within a few months, while duplex stainless steel can be used safely for decades.<\/p>\n

 <\/p>\n

\ub4c0\ud50c\ub809\uc2a4 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \ubd84\ub958 \ubc0f \uc77c\ubc18\uc801\uc778 \ub4f1\uae09<\/span><\/h3>\n

\ud604\uc7ac \ub4c0\ud50c\ub809\uc2a4 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \uc2a4\ud2f8\uc740 \uc8fc\ub85c 4\uc138\ub300\ub85c \ub098\ub269\ub2c8\ub2e4. \uac01 \uc138\ub300\uc758 \ud2b9\uc9d5\uacfc \ub300\ud45c\uc801\uc778 \ub4f1\uae09\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n

1\uc138\ub300 \ub300\ud45c \ub4f1\uae09\uc778 2205(S31803)\ub294 Cr 22%, Ni 5%, Mo 3% \ubc0f N 0.15%\ub97c \ud3ec\ud568\ud569\ub2c8\ub2e4. \ub0b4\uc2dd\uc131\uacfc \uac15\ub3c4\uac00 \uade0\ud615\uc744 \uc774\ub8e8\ub294 \uace0\uc804\uc801\uc778 \uacf5\uc2dd\uc73c\ub85c \ud654\ud559 \uc7a5\ube44 \ubc0f \ud574\uc218 \ud30c\uc774\ud504 \ub77c\uc778\uc5d0 \ub110\ub9ac \uc0ac\uc6a9\ub429\ub2c8\ub2e4. 2\uc138\ub300 \uc288\ud37c \ub4c0\ud50c\ub809\uc2a4 \uc2a4\ud2f8 2507(S32750)\uc740 Cr 25%, Ni 6%, Mo 3.5% \ubc0f N 0.25%\ub97c \ud3ec\ud568\ud569\ub2c8\ub2e4. PREN \uac12\uc740 \u226540\uc774\uba70 \ub0b4\uc2dd\uc131\uc774 \ub354 \uac15\ud569\ub2c8\ub2e4. \ud574\uc591 \ud50c\ub7ab\ud3fc \ubc0f LNG \uc7a5\ube44\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4. 3\uc138\ub300 2507Cu\ub294 2507\uc5d0 Cu \uc6d0\uc18c\ub97c \ucd94\uac00\ud558\uc5ec \ud2c8\uc0c8 \ub0b4\uc2dd\uc131\uc744 \ud5a5\uc0c1\uc2dc\ucf30\uc2b5\ub2c8\ub2e4. \uace0\ub18d\ub3c4 \uc5fc\uc0b0 \ubc0f \uc81c\uc9c0 \uc0b0\uc5c5\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4. 4\uc138\ub300 \uacbd\uc81c \ub4f1\uae09 LDX 2101\uc740 \uc800\ub2c8\ucf08(1.5%), \uace0\ub9dd\uac04(5.5%), Cr 21%, Mo 0.3%, PREN \uac12 26-28\uc744 \ud568\uc720\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uac74\uc124 \ubc0f \ud658\uacbd \ubcf4\ud638 \uc7a5\ube44\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n

 <\/p>\n

\ud575\uc2ec\uc740 1\uc138\ub300\uc640 2\uc138\ub300\uac00 \uc8fc\ub958 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \ub4f1\uae09\uc774\ub77c\ub294 \uc810\uc785\ub2c8\ub2e4. 2\uc138\ub300\ub294 \ud06c\ub86c, \ubab0\ub9ac\ube0c\ub374, \uc9c8\uc18c \ud568\ub7c9\uc744 \ub192\uc5ec \ub0b4\uc2dd\uc131\uc744 \ud06c\uac8c \ud5a5\uc0c1\uc2dc\ucf30\uace0, 3\uc138\ub300\ub294 \ud2b9\uc815 \ubd80\uc2dd \ud658\uacbd(\uace0\ub18d\ub3c4 \uc5fc\uc0b0 \ub4f1)\uc5d0 \ucd5c\uc801\ud654\ub418\uc5c8\uc73c\uba70, 4\uc138\ub300\ub294 \ub2c8\ucf08 \ud568\ub7c9\uc744 \uc904\uc5ec \ube44\uc6a9 \uc808\uac10\uc744 \ub2ec\uc131\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n

 <\/p>\n

\ub4c0\ud50c\ub809\uc2a4 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \uc2a4\ud2f8\uc758 \uc801\uc6a9 \ubc0f \uc7ac\ub8cc \uc120\ud0dd<\/span><\/h3>\n

\uc11d\uc720 \ubc0f \uac00\uc2a4 \uc0b0\uc5c5\uc740 \ub4c0\ud50c\ub809\uc2a4 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \uc8fc\uc694 \uc751\uc6a9 \ubd84\uc57c\uc785\ub2c8\ub2e4. \uc2ec\ud574 \uc6d0\uc720 \uc0dd\uc0b0 \ud50c\ub7ab\ud3fc \ub9e4\ub2c8\ud3f4\ub4dc \uc2dc\uc2a4\ud15c\uc740 \ud574\uc218 \ubd80\uc2dd(PREN\u226540)\uacfc \uace0\uc555(\u2265600MPa)\uc744 \uacac\ub514\uae30 \uc704\ud574 \ub4c0\ud50c\ub809\uc2a4 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15(\uc608: 2507)\uc744 \uc0ac\uc6a9\ud558\uace0, LNG \uc800\uc7a5 \ud0f1\ud06c\uc758 \ub77c\uc774\ub2dd\uc740 \uc800\uc628 \uc778\uc131(-50\u2103)\uacfc \ud669\ud654\uc218\uc18c \uc751\ub825 \ubd80\uc2dd\uc5d0 \ub300\ud55c \uc800\ud56d\uc131\uc744 \uace0\ub824\ud558\uc5ec 2205 \ub610\ub294 2507\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \ud654\ud559 \ubc0f \uc5d0\ub108\uc9c0 \ubd84\uc57c\uc5d0\uc11c\ub294 \uc2b5\uc2dd \ud0c8\ud669 \uc7a5\uce58\uc640 \uc6d0\uc790\ub825 \ub0c9\uac01\uc218 \ud30c\uc774\ud504 \ub77c\uc778\uc5d0 2205 \ub610\ub294 2507\uc744 \uc0ac\uc6a9\ud558\uc5ec \ud669\uc0b0, \uc778\uc0b0 \ub9e4\uccb4 \ubd80\uc2dd \ubc0f \uace0\uc628 \ud669\ud654\ubb3c \uc751\ub825 \ubd80\uc2dd\uc5d0 \uc800\ud56d\ud569\ub2c8\ub2e4. \uac74\uc124 \ubc0f \ud658\uacbd \ubcf4\ud638 \ubd84\uc57c\uc5d0\uc11c\ub294 \uad50\ub7c9 \uac00\ub4dc\ub808\uc77c \ubc0f \ud558\uc218 \ucc98\ub9ac \uc7a5\ube44\uc5d0 LDX 2101\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub2c8\ucf08 \ube44\uc6a9(1.5%)\uc774 \ub0ae\uace0 \ub300\uae30\/\ud558\uc218 \ubd80\uc2dd\uc5d0 \ub300\ud55c \uc800\ud56d\uc131\uc774 \uc6b0\uc218\ud558\uc5ec \uc720\uc9c0\ubcf4\uc218 \ube44\uc6a9\uc744 \uc808\uac10\ud569\ub2c8\ub2e4.<\/p>\n

 <\/p>\n

\uc18c\uc7ac \uc120\ud0dd\uc740 \ubd80\uc2dd\uc131 \ud658\uacbd(\ud574\uc218, \uc0b0, \uc5fc\ud654\ubb3c \uc774\uc628 \ub18d\ub3c4 \ub4f1), \uae30\uacc4\uc801 \ud2b9\uc131(\ub0b4\uc555, \ub0b4\ucda9\uaca9\uc131), \ube44\uc6a9(\ub2c8\ucf08 \ud568\ub7c9 \ubc0f \uc18c\uc7ac \uc0ac\uc6a9\ub7c9), \uac00\uacf5 \ubc0f \uc6a9\uc811 \uc694\uad6c \uc0ac\ud56d\uc5d0 \ucd08\uc810\uc744 \ub9de\ucdb0\uc57c \ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4 \ud574\uc218 \ud658\uacbd\uc5d0\uc11c\ub294 PREN\uc774 40 \uc774\uc0c1\uc778 2507\uc774 \uc120\ud638\ub418\uace0, \ud654\ud559 \uc7a5\ube44\ub294 \uc911\uac04 \ub18d\ub3c4\uc5d0 \ub530\ub77c 2205 \ub610\ub294 2507\uc744 \uc120\ud0dd\ud574\uc57c \ud558\uba70, \uac00\ub4dc\ub808\uc77c \uad6c\ucd95\uc5d0\ub294 \uacbd\uc81c\uc801\uc778 LDX 2101\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc778 \ubb38\uc81c \ud574\uacb0 \ubc29\ubc95\uc73c\ub85c\ub294 \ucde8\ud654\ub97c \ubc29\uc9c0\ud558\uae30 \uc704\ud55c \uc6a9\uc811 \uc2dc \uc5f4 \uc785\ub825 \uc81c\uc5b4(\uc815\ud569 \uc6a9\uc811 \uc640\uc774\uc5b4 \ubc0f \ub2e4\uce35 \uba40\ud2f0\ud328\uc2a4 \uc6a9\uc811 \uacf5\uc815 \uc0ac\uc6a9), \ud45c\uba74 \ucc98\ub9ac(Ra \u2264 0.8\u03bcm) \ubc0f \uad6c\uc870 \uc124\uacc4(\ud2c8\uc0c8 \ubc29\uc9c0)\ub97c \ud1b5\ud574 \ud53c\ud305\uc744 \ubc29\uc9c0\ud558\ub294 \ubc29\ubc95\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

 <\/p>\n

\uc0dd\uc0b0 \uacf5\uc815 \ubc0f \ud488\uc9c8 \ud3ec\uc778\ud2b8<\/span><\/h3>\n

\ub4c0\ud50c\ub809\uc2a4 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \uc2a4\ud2f8\uc758 \uc0dd\uc0b0\uc740 \uc81c\ub828\uc5d0\uc11c \uc2dc\uc791\ub429\ub2c8\ub2e4. \uc6d0\ub8cc\ub97c \uc804\uae30 \uc544\ud06c\ub85c(EAF)\uc5d0\uc11c \ub179\uc778 \ud6c4 \uc544\ub974\uace4 \uc0b0\uc18c \ud0c8\ud0c4(AOD) \uc6a9\uad11\ub85c\ub85c \uc62e\uaca8 \ud0c8\ud0c4\ud558\uace0, \ud0c4\uc18c \ud568\ub7c9\uc744 \u22640.03%(\uc288\ud37c \ub4c0\ud50c\ub809\uc2a4 \uc2a4\ud2f8\uc740 \u22640.02%)\ub85c \uc81c\uc5b4\ud569\ub2c8\ub2e4(\uc288\ud37c \ub4c0\ud50c\ub809\uc2a4 \uc2a4\ud2f8\uc740 \u22640.02% \ud544\uc694). \uc9c4\uacf5 \uc0b0\uc18c \ud0c8\ud0c4(VOD)\uc73c\ub85c \ubd88\uc21c\ubb3c\uc744 \ub354\uc6b1 \uc904\uc774\uace0 \uc2ac\ub798\ube0c\ub85c \uc5f0\uc18d \uc8fc\uc870\ud55c \ud6c4 \uc5f4\uac04 \uc555\uc5f0(1050-1150\u2103)\uacfc \ub0c9\uac04 \uc555\uc5f0\uc744 \uac70\uccd0 \ub9c8\uc9c0\ub9c9\uc73c\ub85c \uc5b4\ub2d0\ub9c1(1020-1100\u2103 \ubb3c \ub2f4\uae08\uc9c8)\uc744 \uc218\ud589\ud558\uc5ec \ub4c0\ud50c\ub809\uc2a4 \uade0\ud615\uc744 \ud68c\ubcf5\ud569\ub2c8\ub2e4.<\/p>\n

 <\/p>\n

_______________________________________________________________________________________<\/p>\n

\ub300\uc21c \ud569\uae08 \uc8fc\uc2dd\ud68c\uc0ac.<\/strong> \ub294 \ud45c\uc900 \uc0dd\uc0b0 \uacf5\uc815\uacfc \uc5c4\uaca9\ud55c \uaddc\uc815\uc5d0 \ub530\ub77c \ud310\uc7ac, \ucf54\uc77c, \ud29c\ube0c \ubc0f \ubc14 \ub4f1 \uc804 \uc138\uacc4 \uace0\uac1d\uc5d0\uac8c \uace0\ud488\uc9c8 \ub4c0\ud50c\ub809\uc2a4 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \uc2a4\ud2f8\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \ud504\ub85c\uc81d\ud2b8\uc5d0 \ud544\uc694\ud55c \uacbd\uc6b0 \uc989\uc2dc \ubb38\uc758\ud558\uc5ec \ucd5c\uc801\uc758 \uacac\uc801\uc744 \ubc1b\uc544\ubcf4\uc138\uc694.<\/em><\/p>","protected":false},"excerpt":{"rendered":"

Duplex stainless steel is an engineering material with high strength, excellent corrosion resistance and economy. It is widely used in petrochemical, marine engineering, nuclear power, food processing and other fields. This blog will introduce the definition, characteristics, classification, application and material selection method of duplex stainless steel to help you […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-17069","post","type-post","status-publish","format-standard","hentry","category-blog"],"acf":[],"yoast_head":"\nThe Ultimate Secret of Duplex Stainless Steel - Daxun Alloy<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/daxuns.com\/ko\/the-ultimate-secret-of-duplex-stainless-steel\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The Ultimate Secret of Duplex Stainless Steel - Daxun Alloy\" \/>\n<meta property=\"og:description\" content=\"Duplex stainless steel is an engineering material with high strength, excellent corrosion resistance and economy. 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It is widely used in petrochemical, marine engineering, nuclear power, food processing and other fields. 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