{"id":147,"date":"2021-05-13T11:40:47","date_gmt":"2021-05-13T11:40:47","guid":{"rendered":"https:\/\/www.aisi4130fitting.com\/blog\/?p=147"},"modified":"2021-05-13T11:40:47","modified_gmt":"2021-05-13T11:40:47","slug":"things-to-know-about-aisi-4130-seamless-pipe","status":"publish","type":"post","link":"https:\/\/www.aisi4130fitting.com\/blog\/things-to-know-about-aisi-4130-seamless-pipe\/","title":{"rendered":"Things to know about AISI 4130 Seamless Pipe"},"content":{"rendered":"
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The American Iron & Steel Institute (AISI) has designated a number of steel grades for various applications, which are denoted by three to five-digit identifiers. To classify alloy steels, AISI four-digit numbers are used. 4130 steel is a common alloy steel that is used in a wide range of works; this blog will explore its properties briefly by explaining its composition, characteristics, and applications.<\/span><\/p>\n

Pipes without seams or weld are known as seamless. In AISI 4130 seamless pipes Chromium and molybdenum are alloying elements which give it excellent strength-to-weight ratio and they are much harder and stronger than standard 1020 steel pipe, but they are difficult to weld. They require pre and post-weld thermal treatment to avoid cold cracking. 4130 pipe works best in high-pressure and high-temperature applications. These are used in complex assemblies due to their design.<\/span><\/p>\n

CHEMICAL COMPOSITION<\/span><\/h2>\n

The chemistry of AISI 4130 seamless pipes<\/a><\/strong> is as follows;<\/span><\/p>\n\n\n\n\n\n\n\n\n\n
Carbon\u00a0<\/span><\/td>\n0.28% \u2013 0.33%<\/span><\/td>\n<\/tr>\n
Manganese\u00a0<\/span><\/td>\n0.40% \u2013 0.60%<\/span><\/td>\n<\/tr>\n
Phosphorous\u00a0<\/span><\/td>\n0.04% max<\/span><\/td>\n<\/tr>\n
Sulfur\u00a0<\/span><\/td>\n0.04% max<\/span><\/td>\n<\/tr>\n
Silicon\u00a0<\/span><\/td>\n0.15% \u2013 0.35%<\/span><\/td>\n<\/tr>\n
Chromium\u00a0<\/span><\/td>\n0.80% \u2013 1.10%<\/span><\/td>\n<\/tr>\n
Molybdenum\u00a0<\/span><\/td>\n0.15% \u2013 0.25%<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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AISI 4130 PROPERTIES<\/span><\/h2>\n

Few properties of this grade are:<\/span><\/p>\n