{"id":3585,"date":"2025-12-19T10:27:20","date_gmt":"2025-12-19T03:27:20","guid":{"rendered":"https:\/\/linkweldthailand.com\/product\/%e0%b8%a5%e0%b8%a7%e0%b8%94%e0%b9%80%e0%b8%8a%e0%b8%b7%e0%b9%88%e0%b8%ad%e0%b8%a1%e0%b8%8b%e0%b8%b1%e0%b8%9e%e0%b9%80%e0%b8%a1%e0%b8%b4%e0%b8%a3%e0%b9%8c%e0%b8%88-lsw-em12k-%e0%b9%81%e0%b8%a5%e0%b8%b0\/"},"modified":"2026-05-07T08:51:16","modified_gmt":"2026-05-07T01:51:16","slug":"submerge-wires-lsw-em12k-and-flux-lsf38-f7a2-em12k","status":"publish","type":"product","link":"https:\/\/linkweldthailand.com\/en\/product\/submerge-wires-lsw-em12k-and-flux-lsf38-f7a2-em12k\/","title":{"rendered":"Submerge Wires (LSW-EM12K) and Flux (LSF38) F7A2-EM12K"},"content":{"rendered":"
\u25b6\ufe0e Characteristics<\/strong>:<\/h5>\n

LSF-38 is an active \ufb02ux. It is designed for butt or fillet welding on sheet metal with nice bead appearance, porosity resistance and good slag removal. It is recommended for single pass welding steel plate under 25 mm thick.<\/p>\n

 <\/p>\n

\n

 <\/p>\n

\u25b6\ufe0e Applications<\/strong>:<\/h5>\n

Typical applications include pressure vessels, H beam, pipe-mill application, shipbuilding and general steel structure.<\/p>\n

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\u25b6\ufe0e Notes on Usage<\/strong>:<\/h5>\n

1. Dry the \ufb02ux at 350\u2103 for 60 minutes before use.
\n2. Not recommended to welding more than two passes.<\/p>\n

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\u25b6\ufe0e Classification<\/strong>:<\/h5>\n

AWS A5.17 F7A2-EM12K
\nJIS Z3183 S502-H<\/p>\n

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\n

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\u25b6\ufe0e Typical chemical composition of weld metal (wt%)<\/strong><\/h5>\n\n\n\n\n
C <\/strong><\/td>\nMn <\/strong><\/td>\nSi <\/strong><\/td>\nP <\/strong><\/td>\nS <\/strong><\/td>\n<\/tr>\n
0.09<\/td>\n1.33<\/td>\n0.6<\/td>\n0.015<\/td>\n0.010<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

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\u25b6\ufe0e Typical mechanical properties of weld metal<\/strong><\/h5>\n\n\n\n\n
YP N\/mm2<\/sup><\/strong><\/td>\nTS N\/mm2<\/sup><\/strong><\/td>\nEL % <\/strong><\/td>\nIV – 30 \u00baC J<\/strong><\/td>\n<\/tr>\n
415<\/td>\n525<\/td>\n31<\/td>\n46<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
<\/h5>\n
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\u25b6\ufe0e\u00a0Sizes and recommended current range ( DC+)<\/strong><\/h5>\n\n\n\n\n\n
Diameter (mm)<\/strong><\/td>\n\u00a02.4<\/strong><\/td>\n\u00a03.2<\/strong><\/td>\n\u00a04.0<\/strong><\/td>\n<\/tr>\n
Weight per roll (kg)<\/strong><\/td>\n25<\/td>\n25<\/td>\n25<\/td>\n<\/tr>\n
Weight per bag(kg)<\/strong><\/td>\n25<\/td>\n25<\/td>\n25<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

AWS A5.17 F7A2-EM12K
\nJIS Z3183 S502-H<\/p>\n","protected":false},"featured_media":35867,"template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[310],"product_cat":[160,154],"product_tag":[],"class_list":["post-3585","product","type-product","status-publish","has-post-thumbnail","product_brand-linkweld","product_cat-submerge-wire-saw","product_cat-welding-consumables","first","instock","shipping-taxable","product-type-simple"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t