{"id":3804,"date":"2021-03-10T14:21:10","date_gmt":"2021-03-10T14:21:10","guid":{"rendered":"https:\/\/www.wldsteel.com\/?p=3804"},"modified":"2021-03-10T14:26:27","modified_gmt":"2021-03-10T14:26:27","slug":"the-welding-of-api-j55-casing","status":"publish","type":"post","link":"https:\/\/www.wldsteel.com\/ko\/api-j55-%ec%bc%80%ec%9d%b4%ec%8a%a4%ec%9d%98-%ec%9a%a9%ec%a0%91\/","title":{"rendered":"API J55 \ucf00\uc774\uc2a4 \uc6a9\uc811"},"content":{"rendered":"<p>API 5A <a href=\"https:\/\/www.wldsteel.com\/ko\/product\/api-5ct-j55-casing-pipe\/\">J55<\/a> \uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uc0ac\uc6a9\ub418\ub294 \ucf00\uc774\uc2f1 \uc18c\uc7ac\uc785\ub2c8\ub2e4. \ud29c\ube0c \ubcf8\uccb4\ub294 \ucee4\ud50c\ub9c1\uc5d0 \ub098\uc0ac\uc0b0\uc73c\ub85c \uc5f0\uacb0\ub418\uba70 \ub098\uc0ac\uc0b0 \uc5f0\uacb0\uc758 \uac15\ub3c4\ub97c \uac15\ud654\ud558\uae30 \uc704\ud574 \uc6a9\uc811\ud574\uc57c \ud569\ub2c8\ub2e4. \uc5f4\uc545\ud55c \uc791\uc5c5 \ud658\uacbd\uc5d0\uc11c\ub294 \ud30c\uc774\ud504 \ubcf8\uccb4\uc640 \uc6a9\uc811 \ud488\uc9c8\uc5d0 \ub192\uc740 \ud488\uc9c8\uc774 \uc694\uad6c\ub429\ub2c8\ub2e4. \ub2f9\uc0ac\ub294 \ud0c4\uc18c \ub2f9\ub7c9 \uacc4\uc0b0\uc744 \ud1b5\ud574 \uc6a9\uc811\uc131\uc744 \ubd84\uc11d\ud569\ub2c8\ub2e4. J55 \ucf00\uc774\uc2f1\uc758 \ud654\ud559 \uc131\ubd84\uc740 \ub2e4\uc74c \ud45c\uc5d0 \ub098\uc640 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>C<\/td><td>Si<\/td><td>Mn<\/td><td>P<\/td><td>S<\/td><td>Cr<\/td><td>Ni<\/td><td>Cu<\/td><\/tr><tr><td>0.34\uff5e0.39<\/td><td>0.20\uff5e0.35<\/td><td>1.25\uff5e1.50<\/td><td>\u22640.025<\/td><td>\u22640.015<\/td><td>\u22640.15<\/td><td>\u22640.20<\/td><td>\u22640.20<\/td><\/tr><\/tbody><\/table><figcaption>J55 \ucf00\uc774\uc2f1 \ud29c\ube0c \ud654\ud559 \uc131\ubd84 <\/figcaption><\/figure>\n\n\n\n<p>CE\uff1dC\uff0bMn\/6+(Cr+Mo+V)\/5+(Ni+Cu)\/15<\/p>\n\n\n\n<p>CE\uff1d0.69\uff1e0.4<\/p>\n\n\n\n<p>\ud0c4\uc18c \ub2f9\ub7c9\uc774 0.4\ub97c \ucd08\uacfc\ud558\uba74 \uc7ac\ub8cc\uc758 \uc6a9\uc811\uc131\uc774 \ub5a8\uc5b4\uc9c0\uace0, \ub192\uc740 \uc608\uc5f4 \uc628\ub3c4\uc640 \uc5c4\uaca9\ud55c \uacf5\uc815\uc774 \ud544\uc694\ud558\uba70, \uc790\uaca9\uc744 \uac16\ucd98 \uc6a9\uc811 \ud488\uc9c8\uc744 \uc5bb\uc73c\ub824\uba74 \uc5c4\uaca9\ud55c \uacf5\uc815\uc774 \ud544\uc694\ud569\ub2c8\ub2e4. 0.34%~0.39%\uc758 \ud0c4\uc18c \ud568\ub7c9\uc740 \uacfc\ub0c9\uac01 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uc758 \uc804\uc774 \uace1\uc120\uc774 \uc624\ub978\ucabd\uc73c\ub85c \uc774\ub3d9\ud558\uace0 \uacfc\ub0c9\uac01 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uc758 \uc548\uc815\uc131\uc774 \uc99d\uac00\ud569\ub2c8\ub2e4. Cr, Mn, Ni, Cu\uc640 \uac19\uc740 \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\uace0 \uc548\uc815\uc131\uacfc MS\uc810(M\ub9c8\ub974\ud150\uc0ac\uc774\ud2b8 \ud615\uc131\uc758 \uc2dc\uc791\uc810)\uc774 \ud5a5\uc0c1\ub429\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 \uc911\uc5d0 \uade0\uc5f4\uc774 \ubc1c\uc0dd\ud558\uae30 \uc27d\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\ucc28\uac00\uc6b4 \uade0\uc5f4 \uacbd\ud5a5<a href=\"https:\/\/www.wldsteel.com\/ko\/product\/api-5ct-j55-casing-pipe\/\"> J55 \ucf00\uc774\uc2a4<\/a> \ub294 \uc8fc\ub85c \ub2f4\uae08\uc9c8 \ucde8\uc131 \uade0\uc5f4\uc774 \ud06c\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \uc6a9\uc811 \uc5f4 \uc601\ud5a5 \uc601\uc5ed\uc758 \ucd5c\uace0 \uacbd\ub3c4 \uac12\uc774 \ub192\uace0 \uac15\ub3c4\uac00 \ub192\uae30 \ub54c\ubb38\uc5d0 \uae09\uc18d \ub0c9\uac01\uc73c\ub85c \ub9c8\ub974\ud150\uc0ac\uc774\ud2b8\ub97c \ud615\uc131\ud558\uae30 \uc27d\uc2b5\ub2c8\ub2e4. \ub0c9\uac01 \uc18d\ub3c4\ub97c \uc904\uc774\ub824\uba74 \uc6a9\uc811 \uc870\uc778\ud2b8\uc758 \ub0c9\uac01 \uc2dc\uac04\uc744 800\u00b0C\uc5d0\uc11c 500\u00b0C\ub85c \uc5f0\uc7a5\ud558\uace0 \uc6a9\uc811 \uae08\uc18d\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. J55 \ucf00\uc774\uc2f1\uc740 \uac15\ud55c \uce74\ubc14\uc774\ub4dc\ub97c \ud3ec\ud568\ud558\uc9c0 \uc54a\uace0 \uc5f4\uc804\ub3c4\uc728\uc774 \ub0ae\uc544 \ub0ae\uc740 \uc735\ud569 \uc720\ud14d\uc744 \uc0dd\uc131\ud558\uae30 \uc5b4\ub835\uae30 \ub54c\ubb38\uc5d0 \uace0\uc628 \uade0\uc5f4 \uacbd\ud5a5\uc774 \uc801\uc2b5\ub2c8\ub2e4. J55\uc758 \uc778\uc7a5 \uac15\ub3c4\ub294 517MPa \uc774\uc0c1\uc774\uace0 \ud56d\ubcf5 \uac15\ub3c4\ub294 379-522MPa\uc785\ub2c8\ub2e4. \uc6b0\ub9ac\ub294 \ube44\uc2b7\ud55c \uac15\ub3c4\ub97c \uac00\uc9c4 \uc6a9\uc811 \uc640\uc774\uc5b4 ER55-G\ub97c \uc0ac\uc6a9\ud574\uc57c \ud569\ub2c8\ub2e4. \uc6a9\uc811 \uc640\uc774\uc5b4\ub294 \ub192\uc740 \uc6a9\uc811 \ub2c8\ucf08 \ud568\ub7c9, \uac15\ud55c \ub0c9\uac04 \uade0\uc5f4 \uc800\ud56d\uc131 \ubc0f \uc99d\ucc29 \uae08\uc18d\uc758 \uc6b0\uc218\ud55c \uc885\ud569\uc801\uc778 \uae30\uacc4\uc801 \ud2b9\uc131\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc6b0\ub9ac \uc5d4\uc9c0\ub2c8\uc5b4\ub4e4\uc740 \ub2e4\uc74c \ub450 \uac00\uc9c0 \uacc4\ud68d\uc744 \uc138\uc6c1\ub2c8\ub2e4:<\/p>\n\n\n\n<p>\uc6a9\uc811 \ubc29\ubc95 1: 80%Ar+20%CO2 \uac00\uc2a4 \uc6a9\uc811. \uc9c1\uacbd 3.2mm\uc758 ER55-G \uc6a9\uc811 \uc640\uc774\uc5b4. \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. \uc6a9\uc811 \ud6c4 \ucc98\ub9ac : \uc5f4\ucc98\ub9ac\uc5c6\uc774 \uacf5\uae30 \ub0c9\uac01.<\/p>\n\n\n\n<p>\uc6a9\uc811 \ubc29\ubc95 2: \ubc29\ubc95 1\uacfc \ub3d9\uc77c\ud55c \uc6a9\uc811 \uc7ac\ub8cc \ubc0f \uc6a9\uc811 \ub9e4\uac1c \ubcc0\uc218, \uc6a9\uc811 \ud6c4 \uc5f4\ucc98\ub9ac\ub9cc \ubcc0\uacbd: \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>\ub450 \uac00\uc9c0 \uc6a9\uc811 \ud14c\uc2a4\ud2b8\uc758 \uacb0\uacfc\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4: <\/p>\n\n\n\n<p>\uccab \ubc88\uc9f8 \uacc4\ud68d\uc758 \uc778\uc7a5 \uc2dc\ud5d8\uc740 \uc801\uaca9\uc785\ub2c8\ub2e4. \uc5f4 \uc601\ud5a5 \uad6c\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\uc5d0\ub294 \uac01\uac01 3.75mm, 4mm, 1.38mm \ubc0f 0.89mm\uc758 \uade0\uc5f4\uc774 \uc788\uc5c8\uc73c\uba70 \uc774\ub294 \ubd80\uc801\ud569\ud588\uc2b5\ub2c8\ub2e4. \uc774 \ud14c\uc2a4\ud2b8\ub294 \uc774 \uc6a9\uc811 \ubc29\uc2dd\uc774 \ud569\ub9ac\uc801\uc774\uc9c0 \uc54a\ub2e4\ub294 \uac83\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\ub450 \ubc88\uc9f8 \ubc29\uc2dd\uc740 \uc778\uc7a5 \uc2dc\ud5d8\uc5d0 \uc758\ud574 \uc790\uaca9\uc774 \ubd80\uc5ec\ub429\ub2c8\ub2e4. \uc5f4 \uc601\ud5a5 \uc601\uc5ed\uc5d0\uc788\ub294 \uc138 \uc0d8\ud50c\uc758 \ucda9\uaca9 \uac12\uc740 51,40,40\uc774\uba70 \uc790\uaca9\uc774 \ubd80\uc5ec\ub429\ub2c8\ub2e4. \ub124 \uac1c\uc758 \uce21\uba74 \uad7d\ud798 \uc0d8\ud50c\uc740 \ubaa8\ub450 \uc190\uc0c1\ub418\uc9c0 \uc54a\uace0 \uc790\uaca9\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc2e4\ud5d8\uc740\uc774 \uc6a9\uc811 \ubc29\uc2dd\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 \ucf00\uc774\uc2f1 \uc6a9\uc811\uc758 \uae30\uc220\uc801 \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>","protected":false},"excerpt":{"rendered":"<p>API 5A J55 is a commonly used casing material. The tubing body is threaded to the coupling and must be welded to reinforce the strength of the threaded connection.\u00a0A harsh\u00a0working environment requires high quality for the\u00a0pipe body and welding quality. We analyze its weldability by calculating carbon equivalent.\u00a0The chemical composition of J55 casing is shown [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>The welding of API J55 casing<\/title>\n<meta name=\"description\" content=\"API 5A J55 is a commonly used casing material. The tubing body is threaded to the coupling and must be welded to reinforce the strength of the threaded connection.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wldsteel.com\/ko\/la-soudure-de-lenveloppe-de-lapi-j55\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The welding of API J55 casing\" \/>\n<meta property=\"og:description\" content=\"API 5A J55 is a commonly used casing material. The tubing body is threaded to the coupling and must be welded to reinforce the strength of the threaded connection.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wldsteel.com\/ko\/la-soudure-de-lenveloppe-de-lapi-j55\/\" \/>\n<meta property=\"og:site_name\" content=\"API steel oilfield pipeline, casing pipe, OCTG manufacturer and supplier\" \/>\n<meta property=\"article:published_time\" content=\"2021-03-10T14:21:10+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-03-10T14:26:27+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\">\n\t<meta name=\"twitter:data1\" content=\"2\ubd84\">\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.wldsteel.com\/#website\",\"url\":\"https:\/\/www.wldsteel.com\/\",\"name\":\"API steel oilfield pipeline, casing pipe, OCTG manufacturer and supplier\",\"description\":\"- WLD STEEL\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":\"https:\/\/www.wldsteel.com\/?s={search_term_string}\",\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"ko-KR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wldsteel.com\/fr\/la-soudure-de-lenveloppe-de-lapi-j55\/#webpage\",\"url\":\"https:\/\/www.wldsteel.com\/fr\/la-soudure-de-lenveloppe-de-lapi-j55\/\",\"name\":\"The welding of API J55 casing\",\"isPartOf\":{\"@id\":\"https:\/\/www.wldsteel.com\/#website\"},\"datePublished\":\"2021-03-10T14:21:10+00:00\",\"dateModified\":\"2021-03-10T14:26:27+00:00\",\"author\":{\"@id\":\"https:\/\/www.wldsteel.com\/#\/schema\/person\/759092960ae8f71841666f123d37da28\"},\"description\":\"API 5A J55 is a commonly used casing material. 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