{"id":4123,"date":"2026-05-11T10:20:18","date_gmt":"2026-05-11T09:20:18","guid":{"rendered":"https:\/\/www.nickelcasting.com\/?p=4123"},"modified":"2026-05-11T10:20:18","modified_gmt":"2026-05-11T09:20:18","slug":"best-nickel-alloy-for-seawater-valves-and-pumps","status":"publish","type":"post","link":"https:\/\/www.nickelcasting.com\/ko\/best-nickel-alloy-for-seawater-valves-and-pumps\/","title":{"rendered":"\ud574\uc218 \ubc38\ube0c \ubc0f \ud38c\ud504\uc5d0 \uac00\uc7a5 \uc801\ud569\ud55c \ub2c8\ucf08 \ud569\uae08\uc740?"},"content":{"rendered":"

\ud574\uc218 \ubc38\ube0c \ubc0f \ud38c\ud504\uc5d0 \uac00\uc7a5 \uc801\ud569\ud55c \ub2c8\ucf08 \ud569\uae08\uc740 \ud569\uae08 \uc774\ub984\ub9cc\uc73c\ub85c \ub2f5\ud560 \uc218 \uc788\ub294 \ubb38\uc81c\uac00 \uc544\ub2d9\ub2c8\ub2e4. \uc2e4\uc81c \ud504\ub85c\uc81d\ud2b8\uc5d0\uc11c\ub294 \uc18d\ub3c4, \uc624\uc5fc, \uc628\ub3c4, \uc751\ub825, \uc81c\uc791 \uacbd\ub85c \ubc0f \uac80\uc0ac \ubd84\uc57c\uac00 \ub2e4\ub974\uae30 \ub54c\ubb38\uc5d0 \ub3d9\uc77c\ud55c \ub2c8\ucf08 \ud569\uae08\uc774 \ud55c \ud50c\ub79c\ud2b8\uc5d0\uc11c\ub294 \uc798 \uc791\ub3d9\ud558\uc9c0\ub9cc \ub2e4\ub978 \ud50c\ub79c\ud2b8\uc5d0\uc11c\ub294 \uc2e4\ub9dd\uc2a4\ub7ec\uc6b4 \uc131\ub2a5\uc744 \ubcf4\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uadf8\ub807\uae30 \ub54c\ubb38\uc5d0 28Nickel\uc740 \ud569\uae08 \uc120\ud0dd\uc744 \ub2e8\uc21c\ud55c \uc81c\ud488 \ub9e4\uce6d\uc774 \uc544\ub2cc \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \uac80\ud1a0\ub85c \ucde8\uae09\ud569\ub2c8\ub2e4.<\/p>\n

\ud574\uc218 \ubc38\ube0c \ubc0f \ud38c\ud504\uc5d0 \uac00\uc7a5 \uc801\ud569\ud55c \ub2c8\ucf08 \ud569\uae08\uc744 \ub2e8\uc21c\ud654\ub41c \ud45c\uc5d0\uc11c \uc120\ud0dd\ud558\uba74 \uad6c\ub9e4\uc790\ub294 \uc778\uc99d\uc11c\uc5d0\ub294 \uc801\ud569\ud574 \ubcf4\uc774\uc9c0\ub9cc \uc2e4\uc81c \uace0\uc7a5 \ubaa8\ub4dc\uc5d0 \ucde8\uc57d\ud55c \uc7ac\ub8cc\ub97c \ubc1b\uac8c \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc5d4\uc9c0\ub2c8\uc5b4\uc640 \uad6c\ub9e4\uc790\ub294 \uc8fc\ubb38\uc774 \uc0dd\uc0b0\uc5d0 \ub3c4\ub2ec\ud558\uae30 \uc804\uc5d0 \uc11c\ube44\uc2a4 \ud654\ud559, \ubd80\ud488 \ud615\uc0c1, \uc81c\uc870 \uacbd\ub85c, \ud14c\uc2a4\ud2b8 \ubc0f \ubb38\uc11c\ub97c \uc5f0\uacb0\ud558\ub294 \ud328\ud0a4\uc9c0\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n

\"\ud574\uc218<\/p>\n

\ud574\uc218 \ubc38\ube0c \ubc0f \ud38c\ud504\uc5d0 \uac00\uc7a5 \uc801\ud569\ud55c \ub2c8\ucf08 \ud569\uae08\uc744 \uc120\ud0dd\ud558\ub294 \ubc29\ubc95<\/b><\/strong><\/h2>\n

\ubaa8\ub4e0 \ud574\uc218 \uc6a9\ub3c4\uc5d0 \ub9de\ub294 \ub2e8 \ud558\ub098\uc758 \uc815\ub2f5\uc740 \uc5c6\uc2b5\ub2c8\ub2e4. \ud574\uc218 \ubc38\ube0c \ubc0f \ud38c\ud504\uc5d0 \uac00\uc7a5 \uc801\ud569\ud55c \ub2c8\ucf08 \ud569\uae08\uc740 \uc720\uc18d, \uc0dd\ubb3c \uc624\uc5fc, \ud2c8\uc0c8 \ud615\uc0c1, \uc815\uccb4 \uad6c\uc5ed, \uc5fc\uc18c \ucc98\ub9ac, \ubaa8\ub798 \ud558\uc911, \ub2e4\ub978 \ud569\uae08\uacfc\uc758 \uac08\ubc14\ub2c9 \uc811\ucd09\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4. \ubaa8\ub12c 400<\/a> \ubc0f K500\uc740 \ud574\uc591 \uc0e4\ud504\ud2b8 \ubc0f \ud328\uc2a4\ub108\uc5d0 \uc77c\ubc18\uc801\uc73c\ub85c \uc0ac\uc6a9\ub418\uace0, Alloy 625\ub294 \uac70\uce5c \ud574\uc218 \ubc30\uad00 \ubc0f \uc624\ubc84\ub808\uc774\uc5d0 \uc790\uc8fc \uc120\ud0dd\ub418\uba70, \ud574\uc218\uac00 \uc5fc\ud654\uc0b0 \ub610\ub294 \uc624\uc5fc\ub41c \uacf5\uc815 \uc2a4\ud2b8\ub9bc\uacfc \ud63c\ud569\ub41c \uacbd\uc6b0 C276 \ub610\ub294 C22\ub97c \uace0\ub824\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubc38\ube0c \ub610\ub294 \ud38c\ud504 \uc124\uacc4\uc790\ub294 \uce74\ud0c8\ub85c\uadf8 \ub4f1\uae09\uc774 \uc544\ub2cc \uace0\uc7a5 \ubaa8\ub4dc\uc5d0\uc11c \uc2dc\uc791\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n

\ud574\uc218 \ubc38\ube0c\uc640 \ud38c\ud504\ub294 \uac00\ud639\ud55c \uad6d\ubd80\uc801 \uc870\uac74\uc744 \uc870\uc131\ud569\ub2c8\ub2e4. \ud38c\ud504 \uc784\ud3a0\ub7ec\ub294 \ube60\ub978 \uc18d\ub3c4, \ub09c\ub958, \uce68\uc2dd \ubd80\uc2dd \uac00\ub2a5\uc131\uc774 \uc788\uc73c\uba70, \ubc38\ube0c \uc2dc\ud2b8 \ub610\ub294 \uac1c\uc2a4\ud0b7 \uc601\uc5ed\uc740 \uc5fc\ud654\ubb3c \ub18d\ub3c4\uac00 \uc815\uccb4\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \ud574\uc218 \ubc38\ube0c \ubc0f \ud38c\ud504\uc5d0 \uac00\uc7a5 \uc801\ud569\ud55c \ub2c8\ucf08 \ud569\uae08\uc740 \ubd80\ud488 \uc704\uce58\ubcc4\ub85c \uac80\ud1a0\ud574\uc57c \ud569\ub2c8\ub2e4. \uc0e4\ud504\ud2b8\uc5d0 \uc801\ud569\ud55c \ub3d9\uc77c\ud55c \ud569\uae08\uc774 \ud2c8\uc0c8\uac00 \uc0dd\uae30\uae30 \uc26c\uc6b4 \ud2b8\ub9bc \ubd80\ud488\uc774\ub098 \ubcf5\uc7a1\ud55c \ud615\uc0c1\uc758 \uc8fc\uc870 \ud38c\ud504 \ucf00\uc774\uc2f1\uc5d0\ub294 \uc801\ud569\ud558\uc9c0 \uc54a\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

Product form also matters. Forgings, castings, bars, plates, weld overlays, and pipe spools have different defect risks and inspection routes. Heavy pump components may need ultrasonic testing or radiographic inspection, while valve trim may need hardness control, close dimensional tolerances, and galling review. If the purchase order only says ‘seawater service,’ the supplier has too much room to guess. A better inquiry names the component, seawater chemistry, flow regime, joining method, and inspection class.<\/p>\n\n\n\n\n\n\n\n\n
\uc120\ud0dd \uc694\uc18c<\/td>\n\uacf5\ud559\uc801 \uc774\uc720<\/td>\n28\ub2c8\ucf08\uc774 \ud655\uc778\ud574\uc57c \ud560 \uc0ac\ud56d<\/td>\n<\/tr>\n
\ubaa8\ub12c 400\/K500<\/td>\n\uc0e4\ud504\ud2b8, \ud328\uc2a4\ub108 \ubc0f \uc77c\ubd80 \ud2b8\ub9bc\uc5d0 \uc720\uc6a9\ud55c \ub0b4\ub9c8\ubaa8\uc131 \ubc0f \uc6b0\uc218\ud55c \uc774\ub825<\/td>\n\uac15\ub3c4 \uc218\uc900, \uac08\ubc14\ub2c9 \uc811\ucd09 \ubc0f \ud2c8\uc0c8 \uc138\ubd80 \uc815\ubcf4<\/td>\n<\/tr>\n
\ud569\uae08 625<\/td>\n\uc6a9\uc811 \uc624\ubc84\ub808\uc774 \uc0ac\uc6a9\uc73c\ub85c \uc5fc\ud654\ubb3c \ubc0f \ubc14\ub2f7\ubb3c\uc5d0 \ub300\ud55c \ub0b4\uc131\uc774 \uac15\ud568<\/td>\n\uc6a9\uc811 \uc2dc \uc5f4 \uc870\uac74, NDE, PMI \ubc0f \uc624\ubc84\ub808\uc774 \ud76c\uc11d\ub960<\/td>\n<\/tr>\n
C276\/C22<\/td>\n\uac15\ub825\ud55c \ud654\ud559 \uc624\uc5fc \ubb3c\uc9c8\uc774 \uc11e\uc778 \ubc14\ub2f7\ubb3c\uc5d0 \ub300\ud55c \uace0\ub824 \uc0ac\ud56d<\/td>\n\uc5fc\ud654\uc0b0 \ud654\ud559, \uc0b0\ud654 \uc885 \ubc0f \ube44\uc6a9 \uc815\ub2f9\ud654<\/td>\n<\/tr>\n
\ucef4\ud3ec\ub10c\ud2b8 \uc9c0\uc624\uba54\ud2b8\ub9ac<\/td>\n\ud2c8\uc0c8\uc640 \uc815\uccb4 \uad6c\uc5ed\uc740 \uc885\uc885 \uc7a5\uc560\ub97c \uc81c\uc5b4\ud569\ub2c8\ub2e4.<\/td>\n\uc2dc\ud2b8 \ud3ec\ucf13, \uac1c\uc2a4\ud0b7 \uba74, \ub098\uc0ac\uc0b0 \ubd80\ubd84, \ud38c\ud504 \ucf00\uc774\uc2a4 \ub514\ud14c\uc77c<\/td>\n<\/tr>\n
\uac80\uc0ac \ud328\ud0a4\uc9c0<\/td>\n\uace0\ubd80\uac00\uac00\uce58 \ud38c\ud504 \ubc0f \ubc38\ube0c \ubd80\ud488\uc758 \ub2a6\uc740 \ubd88\ub7c9 \ubc29\uc9c0<\/td>\nMTC, PMI, \uce58\uc218, NDE, \ub9c8\ud0b9 \uc0ac\uc9c4 \ubc0f \ud3ec\uc7a5 \uae30\ub85d<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\ud574\uc218 \ud38c\ud504 \ubc0f \ubc38\ube0c \ud569\uae08\uc5d0 \ub300\ud55c \uac80\uc0ac \uc99d\uac70<\/b><\/strong><\/h2>\n

\ud574\uc218 \ubc38\ube0c \ubc0f \ud38c\ud504\uc5d0 \uac00\uc7a5 \uc801\ud569\ud55c \ub2c8\ucf08 \ud569\uae08\uc758 \uacbd\uc6b0, \uc7ac\ub8cc\ub97c \uc808\ub2e8\ud558\uac70\ub098 \ud3ec\uc7a5\ud558\uae30 \uc804\uc5d0 \uac80\uc0ac\ub97c \uc2dc\uc791\ud574\uc57c \ud569\ub2c8\ub2e4. \uac80\ud1a0\uc790\ub294 \ud569\uae08 \ub4f1\uae09, \uc5f4 \ubc88\ud638, \ubc30\uc1a1 \uc870\uac74, \uc81c\ud488 \ud615\ud0dc \ubc0f \uc11c\ube44\uc2a4 \uba54\ubaa8\ub97c \uad6c\ub9e4 \uc8fc\ubb38\uc11c\uc5d0 \uc5f0\uacb0\ud574\uc57c \ud569\ub2c8\ub2e4. \uc778\uc99d\uc11c\ub9cc\uc73c\ub85c\ub294 \uc720\uc6a9\ud558\uc9c0\ub9cc \uc120\ud0dd\ud55c \uc7ac\ub8cc\uac00 \ud604\uc9c0 \ubd80\uc2dd \uba54\ucee4\ub2c8\uc998\uc5d0 \uc801\ud569\ud558\ub2e4\ub294 \uac83\uc744 \uc99d\uba85\ud558\uc9c0\ub294 \ubabb\ud569\ub2c8\ub2e4.<\/p>\n

\ucd9c\uace0 \ud328\ud0a4\uc9c0\uc5d0\ub294 \ud654\ud559 \ubd84\uc11d, \uae30\uacc4\uc801 \ud2b9\uc131, \uc5f4\ucc98\ub9ac \uc0c1\ud0dc, \ud63c\ud569 \ud569\uae08\uc774 \ubc30\uc1a1\ub418\ub294 \uacbd\uc6b0 PMI, \uac00\uacf5 \ud488\ubaa9\uc758 \uce58\uc218 \ubcf4\uace0\uc11c, \uc8fc\uc870 \ub610\ub294 \ub2e8\uc870\ud488\uc758 NDE \uae30\ub85d\uc774 \ud3ec\ud568\ub418\uc5b4\uc57c \ud569\ub2c8\ub2e4. \ub2e4\uc74c\uc5d0 \uc5f0\uacb0\ub41c \ub4c0\ud50c\ub809\uc2a4 \ub610\ub294 \uc2a4\ud14c\uc778\ub9ac\uc2a4 \ubd80\ud488\uc758 \uacbd\uc6b0 \ub2c8\ucf08 \ud569\uae08<\/a>, \uac08\ubc14\ub2c9 \ud638\ud658\uc131\uc744 \uac80\ud1a0\ud574\uc57c \ud569\ub2c8\ub2e4. \ud574\uc218 \ubc38\ube0c \ubc0f \ud38c\ud504\uc5d0 \uac00\uc7a5 \uc801\ud569\ud55c \ub2c8\ucf08 \ud569\uae08\uc740 \ub2e8\uc21c\ud55c \ub0b4\uc131 \ub4f1\uae09\uc774 \uc544\ub2c8\ub77c \ud2c8\uc0c8 \uc2e4\uc218, \ud63c\uc6a9 \ubc0f \uc18c\uc720\uc790\uc758 \ub2a6\uc740 \uc758\uacac\uc744 \ud53c\ud560 \uc218 \uc788\ub294 \uc81c\uc5b4\ub41c \uc7ac\ub8cc \ud328\ud0a4\uc9c0\uc785\ub2c8\ub2e4.<\/p>\n

\uc720\ub2a5\ud55c \uacf5\uae09\uc5c5\uccb4\ub294 \ubc38\ube0c \ub610\ub294 \ud38c\ud504\uc758 \uc5f0\uc18d \ud750\ub984, \uac04\ud5d0\uc801 \uc791\ub3d9, \ud574\uc218 \uc5fc\uc18c \ucc98\ub9ac, \ucc28\ub2e8 \uc815\uccb4 \ub610\ub294 \uc5f0\ub9c8\uc131 \uace0\ud615\ubb3c \uc5ec\ubd80\ub97c \ubb3b\uc2b5\ub2c8\ub2e4. \ud574\uc218 \ubc38\ube0c \ubc0f \ud38c\ud504\uc5d0 \uac00\uc7a5 \uc801\ud569\ud55c \ub2c8\ucf08 \ud569\uae08\uc740 \uacac\uc801 \uc804\uc5d0 \uc774\ub7ec\ud55c \uc138\ubd80 \uc0ac\ud56d\uc744 \ud655\uc778\ud558\uc5ec \uc120\ud0dd\ud574\uc57c \ud569\ub2c8\ub2e4. 28Nickel\uc740 \uc0ac\uc6a9 \uac00\ub2a5\ud55c \ud569\uae08, \ud615\ud0dc, \uac80\uc0ac \uc635\uc158 \ubc0f \uc778\uc99d \uc694\uad6c \uc0ac\ud56d\uc744 \ube44\uad50\ud558\uc5ec \uad6c\ub9e4\uc790\uac00 \uc11c\ube44\uc2a4 \ubc0f \uc81c\uc870 \uacbd\ub85c\uc640 \uc77c\uce58\ud558\ub294 \uc7ac\ub8cc\ub97c \ubc1b\uc744 \uc218 \uc788\ub3c4\ub85d \uc774 \uac80\ud1a0\ub97c \uc9c0\uc6d0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\"\ud574\uc218<\/p>\n

\uacb0\ub860<\/b><\/strong><\/h2>\n

\ud574\uc218 \ubc38\ube0c \ubc0f \ud38c\ud504\uc5d0 \uac00\uc7a5 \uc801\ud569\ud55c \ub2c8\ucf08 \ud569\uae08\uc5d0 \ub300\ud55c \uc815\ub2f5\uc740 \uc2ac\ub85c\uac74\uc774 \uc544\ub2c8\ub77c \uc2e0\uc911\ud55c \uacb0\uc815\uc785\ub2c8\ub2e4. \uad6c\ub9e4\uc790\ub294 \ud654\ud559, \uc628\ub3c4, \ubd88\uc21c\ubb3c, \uc751\ub825 \uc0c1\ud0dc, \uc81c\ud488 \ud615\ud0dc, \uc6a9\uc811 \ub610\ub294 \uac00\uacf5 \uacbd\ub85c, \uac80\uc0ac \ubc94\uc704 \ubc0f \uc778\uc99d \uc694\uad6c \uc0ac\ud56d\uc744 \ud568\uaed8 \ud655\uc778\ud574\uc57c \ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc138\ubd80 \uc0ac\ud56d\uc774 \uba85\ud655\ud560 \ub54c 28Nickel\uc740 \ub2e4\uc74c\uc744 \uacf5\uae09\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2c8\ucf08 \ud569\uae08 \uc18c\uc7ac<\/a> \uc2b9\uc778\ud558\uae30 \uc27d\uace0, \uac80\uc0ac\ud558\uae30 \uc26c\uc6b0\uba70, \uae4c\ub2e4\ub85c\uc6b4 \uc11c\ube44\uc2a4\uc5d0 \uc548\uc804\ud558\uac8c \uc124\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\uad00\ub828 Q&A<\/b><\/strong><\/h2>\n

Q1: \ubaa8\ub12c\uc740 \ud56d\uc0c1 \ucd5c\uace0\uc758 \ud574\uc591 \ud569\uae08\uc778\uac00\uc694?<\/strong><\/p>\n

\ubaa8\ub12c \ub4f1\uae09\uc740 \uac15\ub825\ud55c \ud574\uc591 \uc5ed\uc0ac\ub97c \uac00\uc9c0\uace0 \uc788\uc9c0\ub9cc, \ud574\uc218 \ubc38\ube0c \ubc0f \ud38c\ud504\uc5d0 \uac00\uc7a5 \uc801\ud569\ud55c \ub2c8\ucf08 \ud569\uae08\uc740 \ud2c8\uc0c8 \uc2ec\uac01\ub3c4, \uc18d\ub3c4, \uac08\ubc14\ub2c9 \uc811\ucd09 \ubc0f \ubd80\ud488 \uae30\ub2a5\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4.<\/p>\n

Q2: Alloy 625\ub294 \uc5b8\uc81c \uace0\ub824\ud574\uc57c \ud558\ub098\uc694?<\/strong><\/p>\n

\ud569\uae08 625\ub294 \ub354 \ub192\uc740 \uc800\ud56d\uacfc \uac15\ub3c4\uac00 \ud544\uc694\ud55c \uc5fc\ud654\ubb3c \ub178\ucd9c, \uc6a9\uc811 \uc624\ubc84\ub808\uc774 \ubc0f \ud574\uc218 \ubc30\uad00\uc5d0 \uc790\uc8fc \uace0\ub824\ub429\ub2c8\ub2e4.<\/p>\n

Q3: \ubb38\uc758\uc640 \ud568\uaed8 \uc5b4\ub5a4 \uc815\ubcf4\ub97c \ubcf4\ub0b4\uc57c \ud558\ub098\uc694?<\/strong><\/p>\n

\uc131\ubd84 \uc720\ud615, \ud574\uc218 \uc628\ub3c4, \uc720\uc18d, \uc5fc\uc18c \ucc98\ub9ac \ubc29\ubc95, \uc815\uccb4 \uae30\uac04, \uace0\ud615\ubb3c \ud568\ub7c9, \ub3c4\uba74, \ud544\uc694\ud55c \ud45c\uc900 \ubc0f \uac80\uc0ac \ubc94\uc704\ub97c \uc804\uc1a1\ud569\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"

Best nickel alloy for seawater valves and pumps is not a question that should be answered by alloy name alone. In real projects, the same nickel alloy can perform well in one plant and disappoint in another because velocity, contamination, temperature, stress, fabrication route, and inspection discipline are different. 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In real projects, the same nickel alloy can perform well in one plant and disappoint in another because velocity, contamination, temperature, stress, fabrication route, and inspection discipline are different. 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