{"id":3974,"date":"2021-05-24T08:50:45","date_gmt":"2021-05-24T08:50:45","guid":{"rendered":"https:\/\/www.wldsteel.com\/?p=3974"},"modified":"2021-05-24T08:55:41","modified_gmt":"2021-05-24T08:55:41","slug":"the-weldability-of-j55-oil-casing","status":"publish","type":"post","link":"https:\/\/www.wldsteel.com\/ko\/the-weldability-of-j55-oil-casing\/","title":{"rendered":"J55 \uc624\uc77c \ucf00\uc774\uc2a4\uc758 \uc6a9\uc811\uc131"},"content":{"rendered":"<p class=\"wp-block-paragraph\">\uc624\uc77c \ucf00\uc774\uc2f1\uc740 \uce7c\ub77c\uc640 \ud30c\uc774\ud504 \ubcf8\uccb4\ub85c \uad6c\uc131\ub429\ub2c8\ub2e4. \ud558\ub098\uc758 \ud30c\uc774\ud504 \ubcf8\uccb4\ub97c \uce7c\ub77c \uc2a4\ub808\ub4dc\uc640 \uc5f0\uacb0\ud558\uace0 \ud544\uc694\ud55c \uae38\uc774\uc5d0 \ub3c4\ub2ec\ud55c \ud6c4 \uc6b4\uc1a1 \ubc0f \uc0ac\uc6a9\uc744 \uc6a9\uc774\ud558\uac8c \ud558\uae30 \uc704\ud574 \uc885\ub2e8 \uac04 \uc5f0\uacb0\uc744 \ud1b5\ud574 \uc720\uc804 \ud604\uc7a5\uc73c\ub85c \uc6b4\uc1a1\ud569\ub2c8\ub2e4. \ub098\uc0ac\uc0b0 \uc5f0\uacb0\uc758 \uac15\ub3c4\uc640 \ud480\ub9bc \ubc29\uc9c0 \uc81c\uc5b4\ub97c \uac15\ud654\ud558\uae30 \uc704\ud574\uc11c\ub294 \ub098\uc0ac\uc0b0 \uc5f0\uacb0 \ud6c4 \ud30c\uc774\ud504 \ubcf8\uccb4\uc640 \ucee4\ud50c\ub9c1\uc744 \uc6a9\uc811\ud574\uc57c \ud558\ubbc0\ub85c \uc6a9\uc811 \uc131\ub2a5\uc744 \ubd84\uc11d\ud558\uace0 \ud569\ub9ac\uc801\uc778 \uc6a9\uc811 \uacf5\uc815\uc744 \uc218\ub9bd\ud558\ub294 \uac83\uc774 \ub9e4\uc6b0 \uc911\uc694\ud569\ub2c8\ub2e4. API 5A <a href=\"https:\/\/www.wldsteel.com\/ko\/%ec%a0%9c%ed%92%88\/api-5ct-j55-casing-pipe\/\">J55<\/a> \ub294 \uac00\uc7a5 \uc77c\ubc18\uc801\uc73c\ub85c \uc0ac\uc6a9\ub418\ub294 \ucf00\uc774\uc2a4 \uc18c\uc7ac \uc911 \ud558\ub098\uc774\uba70, \ud0c4\uc18c \ud658\uc0b0\uac12\uc744 \uae30\uc900\uc73c\ub85c \uc6a9\uc811\uc131\uc744 \ubd84\uc11d\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">API 5CT J55 \ud654\ud559 \uc131\ubd84<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>\ub4f1\uae09<\/td><td>C<\/td><td>Si<\/td><td>Mn<\/td><td>P<\/td><td>S<\/td><td>Cr<\/td><td>Ni<\/td><td>Cu<\/td><td>Mo<\/td><\/tr><tr><td>API 5CT J55<\/td><td>0.34-0.39<\/td><td>0.20-0.35<\/td><td>1.25-1.50<\/td><td>0.020<\/td><td>0.015<\/td><td>0.15<\/td><td>0.20<\/td><td>0.20<\/td><td>\/<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uad6d\uc81c \uc6a9\uc811 \ud559\ud68c\uc758 \ud0c4\uc18c \ub4f1\uac00 \uacf5\uc2dd\uc5d0 \ub530\ub985\ub2c8\ub2e4:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CE\uff1dC\uff0bMn\/6+(Cr+Mo+V)\/5+(Ni+Cu)\/15<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CE\uff1d0.69\uff1e0.4<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud0c4\uc18c \ub2f9\ub7c9\uc774 0.4 \uc774\uc0c1\uc774\uace0 \uc6a9\uc811\uc131\uc774 \uc88b\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc790\uaca9\uc744 \uac16\ucd98 \uc6a9\uc811 \ud488\uc9c8\uc744 \uc5bb\uc73c\ub824\uba74 \ub192\uc740 \uc608\uc5f4 \uc628\ub3c4\uc640 \uc5c4\uaca9\ud55c \uae30\uc220 \uc870\uce58\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">J55 \ud569\uae08 \uc6d0\uc18c \ud568\ub7c9\uc774 \ubbf8\uc138 \uad6c\uc870 \ubc0f \ud2b9\uc131\uc5d0 \ubbf8\uce58\ub294 \uc601\ud5a5\uc5d0 \ub530\ub77c \uc6a9\uc811\uc131\uc744 \ubd84\uc11d\ud588\uc2b5\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/www.wldsteel.com\/ko\/%ec%a0%9c%ed%92%88\/api-5ct-j55-casing-pipe\/\">J55 \ucf00\uc774\uc2f1 \ud29c\ube0c<\/a> \ub294 \ud0c4\uc18c \ud568\ub7c9\uc774 0.34%~0.39%\ub85c \ub192\uc544 \uac15\ucca0\uc758 \uacfc\ub0c9\uac01 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8 \uc804\uc774 \uace1\uc120\uc774 \uc624\ub978\ucabd\uc73c\ub85c \uc774\ub3d9\ud558\uace0 \uc99d\uac00\ud569\ub2c8\ub2e4. Cr, Mn, Ni, Cu \ubc0f \uae30\ud0c0 \ud569\uae08 \uc6d0\uc18c\ub97c \ucca8\uac00\ud558\uba74 \uacfc\ub0c9\uac01 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uc758 \uc804\uc774 \uace1\uc120\uc774 \uc624\ub978\ucabd\uc73c\ub85c \uc774\ub3d9\ud558\uc5ec \uacfc\ub0c9\uac01 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uc758 \uc548\uc815\uc131\uc774 \ud5a5\uc0c1\ub418\uace0 MS \uc810(\ub9c8\ub974\ud150\uc0ac\uc774\ud2b8 \ud615\uc131\uc758 \uc2dc\uc791\uc810)\uc774 \uc99d\uac00\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubaa8\ub4e0 \ud6a8\uacfc\ub294 J55\uc758 \ub2f4\uae08\uc9c8 \uacbd\ud5a5\uc744 \uc99d\uac00\uc2dc\ud0a4\uace0 \uc6a9\uc811 \uade0\uc5f4\uc774 \ub098\ud0c0\ub0ac\uc2b5\ub2c8\ub2e4.<\/li><li>J55\ub294 \ub0c9\uac04 \uade0\uc5f4, \uc8fc\ub85c \ub2f4\uae08\uc9c8 \ubc0f \ucde8\uc131 \uade0\uc5f4\uc774 \ubc1c\uc0dd\ud558\ub294 \uacbd\ud5a5\uc774 \ud07d\ub2c8\ub2e4. \uace0\uac15\ub3c4, \uc6a9\uc811 \uc5f4 \uc601\ud5a5 \uc601\uc5ed\uc758 \ub192\uc740 \ucd5c\ub300 \uacbd\ub3c4 \uac12 \ubc0f \ube60\ub978 \ub0c9\uac01\uc73c\ub85c \uc778\ud574 \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\uac00 \uc27d\uac8c \uc0dd\uc131\ub429\ub2c8\ub2e4. \uc6a9\uc811\uc2dc \ud070 \ub77c\uc778 \uc5d0\ub108\uc9c0\uc640 \uc6a9\uc811 \uc804\ub958\ub97c \uc120\ud0dd\ud558\uace0 \uc6a9\uc811 \uc18d\ub3c4\ub97c \uacfc\ub3c4\ud558\uac8c \uc904\uc5ec\uc11c\ub294 \uc548\ub429\ub2c8\ub2e4. \ub0c9\uac01 \uc18d\ub3c4\ub97c \uc904\uc774\ub824\uba74 \uc6a9\uc811 \uc870\uc778\ud2b8\uc758 \ub0c9\uac01 \uc2dc\uac04\uc744 800 \u2103\uc5d0\uc11c 500 \u2103\ub85c \uc5f0\uc7a5\ud558\uace0 \uc6a9\uc811 \uae08\uc18d \ubc0f \uc5f4 \uc601\ud5a5 \uc601\uc5ed\uc758 \ubbf8\uc138 \uad6c\uc870\ub97c \uac1c\uc120\ud558\uace0 \uc5f4 \uc601\ud5a5 \uc601\uc5ed\uc758 \ucd5c\ub300 \uacbd\ub3c4\ub97c \uc904\uc774\ub824\uba74 \uc6a9\uc811 \uc804 \uc608\uc5f4 \ubc0f \uc6a9\uc811 \ud6c4 \ud15c\ud37c\ub9c1\uc774 \ud544\uc694\ud569\ub2c8\ub2e4.<\/li><li>J55\ub294 \uc5f4\uc804\ub3c4\uc728\uc774 \ub0ae\uc544 \ub0ae\uc740 \uc6a9\uc735 \uacf5\uc735\uc744 \uc0dd\uc131\ud558\uae30 \uc27d\uc9c0 \uc54a\uae30 \ub54c\ubb38\uc5d0 \uace0\uc628 \uade0\uc5f4 \uacbd\ud5a5\uc774 \ub192\uc9c0 \uc54a\uc73c\uba70, \uac15\ud55c \uce74\ubc14\uc774\ub4dc\ub97c \ud3ec\ud568\ud558\uc9c0 \uc54a\uae30 \ub54c\ubb38\uc5d0 \uc7ac\uac00\uc5f4 \uade0\uc5f4 \uacbd\ud5a5\uc774 \ud06c\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uac15\ub3c4\uc5d0 \ub9de\ub294 \uc6a9\uc811 \uc640\uc774\uc5b4 ER55-G\uac00 \uc120\ud0dd\ub429\ub2c8\ub2e4. \uc6a9\uc811 \uc640\uc774\uc5b4\ub294 \uc6b0\uc218\ud55c \uc6a9\uc811 \uacf5\uc815 \uc131\ub2a5, \ub192\uc740 Ni \ud568\ub7c9, \uac15\ud55c \ub0c9\uac04 \uade0\uc5f4 \uc800\ud56d\uc131 \ubc0f \uc99d\ucc29 \ub41c \uae08\uc18d\uc758 \uc6b0\uc218\ud55c \ud3ec\uad04\uc801 \uc778 \uae30\uacc4\uc801 \ud2b9\uc131\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/li><li>J55 \uc6a9\uc811\uc5d0 \ud544\uc694\ud55c \uc5f4 \uc785\ub825\uc774 \ud06c\uae30 \ub54c\ubb38\uc5d0 \ubaa8\uc7ac\uc640 \uc6a9\uc811 \uc7ac\ub8cc\uc758 \uac15\ub3c4 \uac12\uc774 \ud06c\uace0 \uc6a9\uc811 \uc911 \ub0b4\ubd80 \uc751\ub825\uc774 \ub9e4\uc6b0 \ud07d\ub2c8\ub2e4. \uc6a9\uc811\ud558\ub294 \ub3d9\uc548 \uc6a9\uc811\ubd80\ub97c \ub9dd\uce58\ub85c \ub450\ub4dc\ub824\uc57c \ud569\ub2c8\ub2e4. \uc6a9\uc811 \ud6c4 \ub0b4\ubd80 \uc751\ub825\uc744 \uc81c\uac70\ud558\uace0 \uacfc\ub3c4\ud55c \uc751\ub825\uc73c\ub85c \uc778\ud55c \uc6a9\uc811 \ud6c4 \uade0\uc5f4\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud574 \uc5f4\ucc98\ub9ac\ub97c \uc218\ud589\ud569\ub2c8\ub2e4. \uc6a9\uc811 \ud6c4 \uc5f4\ucc98\ub9ac\ub294 \uc6a9\uc811 \ubbf8\uc138 \uad6c\uc870 \ud2b9\uc131\ub3c4 \uac1c\uc120\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">J55\uc758 \uc6a9\uc811 \uacf5\uc815<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uc6a9\uc811 \ubc29\ubc95 1<\/strong>80% Ar+20%CO2 \uac00\uc2a4 \ucc28\ud3d0 \uc6a9\uc811. \uc6a9\uc811 \uc7ac\ub8cc : \uc6a9\uc811 \uc640\uc774\uc5b4 ER55-G, \uc9c1\uacbd \u03a63.2mm. \uc6a9\uc811 \ub9e4\uac1c \ubcc0\uc218 : \uc804\ub958 250 ~ 320A, \uc804\uc555 26 ~ 30V; \uc6a9\uc811 \uc18d\ub3c4 35 ~ 50cm \/ \ubd84;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc608\uc5f4 \uc628\ub3c4\ub294 100\u2103\uc774\uba70, \uce35\uac04 \uc628\ub3c4\ub294 \uc608\uc5f4 \uc628\ub3c4\ubcf4\ub2e4 \ub0ae\uc9c0 \uc54a\uc9c0\ub9cc \uc608\uc5f4 \uc628\ub3c4 30\u2103\ubcf4\ub2e4 \ub192\uc744 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc6a9\uc811 \ud6c4 \ucc98\ub9ac: \uc5f4\ucc98\ub9ac \uc5c6\uc774 \uacf5\ub7ad\uc2dd\uc73c\ub85c \ucc98\ub9ac\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uacb0\uacfc: \uc778\uc7a5 \uc2dc\ud5d8\uc740 \uc801\uaca9 \ud310\uc815\uc744 \ubc1b\uc558\uc2b5\ub2c8\ub2e4. \uc5f4 \uc601\ud5a5 \uc601\uc5ed\uc5d0 \uc788\ub294 \uc138 \uc0d8\ud50c\uc758 \ucda9\uaca9 \uac12\uc740 26,47,23\uc73c\ub85c \ubd88\ud569\uaca9\uc785\ub2c8\ub2e4. \ub124 \uac1c\uc758 \uce21\uba74 \uad7d\ud798 \uc0d8\ud50c\uc740 \uac01\uac01 3.75mm \uade0\uc5f4, 4mm \uade0\uc5f4, 1.38mm \uade0\uc5f4, 0.89mm \uade0\uc5f4\uc774 \uc788\uc73c\uba70 \ubd88\ud569\uaca9\uc785\ub2c8\ub2e4. \uc774 \uae30\uc220 \ubc29\uc2dd\uc740 \ud569\ub9ac\uc801\uc774\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uc6a9\uc811 \ubc29\ubc95 2<\/strong>80%Ar+20%CO2 \uac00\uc2a4 \uc6a9\uc811. \uc6a9\uc811 \uc7ac\ub8cc : \uc6a9\uc811 \uc640\uc774\uc5b4 ER55-G, \uc9c1\uacbd \u03a63.2mm. \uc6a9\uc811 \ub9e4\uac1c \ubcc0\uc218 : \uc804\ub958 250 ~ 320A, \uc804\uc555 26 ~ 30V; \uc6a9\uc811 \uc18d\ub3c4 35 ~ 50cm \/ \ubd84; \uc608\uc5f4 \uc628\ub3c4\ub294 100 \u2103\uc774\uace0 \uce35\uac04 \uc628\ub3c4\ub294 \uc608\uc5f4 \uc628\ub3c4\ubcf4\ub2e4 \ub0ae\uc9c0 \uc54a\uc9c0\ub9cc \uc608\uc5f4 \uc628\ub3c4 30 \u2103\ubcf4\ub2e4 \ub192\uc744 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc6a9\uc811 \ud6c4 \ucc98\ub9ac: \ud15c\ud37c\ub9c1 \ucc98\ub9ac, \uc628\ub3c4 600\u00b120\u2103, \uc720\uc9c0 \uc2dc\uac04 4\uc2dc\uac04; \uac00\uc5f4 \uc18d\ub3c4 50\u2103\/h, \ub0c9\uac01 \uc18d\ub3c4 50\u2103\/h.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uacb0\uacfc: \uc778\uc7a5 \uc2dc\ud5d8\uc740 \uc801\uaca9 \ud310\uc815\uc744 \ubc1b\uc558\uc2b5\ub2c8\ub2e4. \uc5f4 \uc601\ud5a5 \uad6c\uc5ed\uc5d0 \uc788\ub294 \uc138 \uc0d8\ud50c\uc758 \ucda9\uaca9 \uac12\uc740 \uac01\uac01 51, 40, 40\uc73c\ub85c \uc801\ud569 \ud310\uc815\uc744 \ubc1b\uc558\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uce21\uba74 \uad7d\ud798 \ud14c\uc2a4\ud2b8, \uc801\uaca9; \uc2e4\ud5d8\uc740\uc774 \uae30\uc220 \uacc4\ud68d\uc774 \ud569\ub9ac\uc801\uc784\uc744 \uc99d\uba85\ud569\ub2c8\ub2e4. \uc6a9\uc811 \ud6c4 \uc5f4\ucc98\ub9ac\ub294 \uc6a9\uc811 \ubbf8\uc138 \uad6c\uc870\uc640 \ud2b9\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\uc73c\uba70, \uc774\ub294 J55 \uc6a9\uc811\uc774 \uae30\uc220 \uc694\uad6c \uc0ac\ud56d\uc744 \ucda9\uc871\ud558\ub294 \uc6a9\uc811 \uc870\uc778\ud2b8\ub97c \uc5bb\uae30\uc704\ud55c \uc911\uc694\ud55c \uc694\uc18c \uc911 \ud558\ub098\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uac00\ud639\ud55c API 5A J55 \ucf00\uc774\uc2f1 \ud658\uacbd\uc5d0\uc11c\ub294 \ud30c\uc774\ud504 \uc790\uccb4\uc758 \ud488\uc9c8\uacfc \uc6a9\uc811 \ud488\uc9c8\uc774 \uc694\uad6c\ub429\ub2c8\ub2e4. \uc704\uc758 \uc6a9\uc811 \ubd84\uc11d \ubc0f \ud14c\uc2a4\ud2b8\ub97c \ud1b5\ud574 \uc694\uad6c \uc0ac\ud56d\uc744 \ucda9\uc871\ud560 \uc218 \uc788\ub294 \uc6a9\uc811 \uacf5\uc815\uc744 \ud655\ubcf4\ud558\uc5ec \uc624\uc77c \ucf00\uc774\uc2f1\uc758 \uc62c\ubc14\ub978 \uc6a9\uc811\uc744 \uc704\ud55c \uc774\ub860\uc801 \ubc0f \uc2e4\ud5d8\uc801 \uadfc\uac70\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"<p>The oil casing is composed of a collar and pipe body. A single pipe body is connected with the collar thread and transported to the oil field site with end to end connection to facilitate transportation and use after reaching the required length.\u00a0In order to strengthen the strength and anti-loosening control of the threaded connection, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3978,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3974","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>The weldability of J55 oil casing<\/title>\n<meta name=\"description\" content=\"API 5A J55 is one of the most commonly used casing materials, and we analyzed its weldability in terms of its carbon equivalent.\" \/>\n<meta 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