4140 material group pdf

Aisi 4140 alloy steel uns g41400 materials engineering. The parts to be machined are for the oil field sector, and id like to get a grasp of the machinability in order to make a quotation. We will not be discussing the metallurgical properties of 4140 or trying to explain what happens to its microstructure when it cools too rapidly, just remember that the key is to control our cooling rate. The prehardened condition is heat treated to a medium hardness hrc 2832 and is designated as 4140 ht. Submit issues to the group that cannot be resolved at the local level and assist in developing sound, workable solutions. General purpose crmoalloyed heattreatable steel with high toughness, for mechanical engineering and mining applications, such as fasteners, connecting rods and pins. Integrated materiel managers imms and others who work within or with the dod supply system to. Aisi 4140 steel is a low alloy steel containing chromium, molybdenum, and manganese. Figure 9 mechanical properties for 4140 and 4140hw the data represents a mechanical property comparison of several 4140 and 4140hw heats. Workpiece materials have been categorized within their iso application range. Alloy steel material grades alloy steel property data sheet alloy steel material grades. The purpose of the overall manual, in accordance with the authority in dod directive dodd 54.

Applications and technical information require engineers and tool designers to exercise independent judgement. Astm a 829 sae 4140 sae 4142 cr moalloyed vacuum degassed steels material data sheet edition december 2012 1 astm a 829 sae 4140 and astm a 829 sae 4142 are vacuum degassed fine grained steels which are particularly used by the customers for heavy machinery applications. This manual is reissued under authority of dod directive 4140. Follow the links below to view complete property information. These grades of low alloy steel containing chromium and molybdenum are the most widely used alloy for oil patch applications. P number sae 4140 material american welding society. It has high fatigue strength, abrasion and impact resistance, toughness, and torsional strength. Usually supplied in the hardened and tempered condition at 22 hrc max. The machinability of 4140ph is increased by a controlled sulfur addition which gives. The grade is not nace mr0175 approved in these conditions. Welding 4140 and other tips welding tips and tricks.

Aisi 4 alloy steel aisi 4 steel stockholders and suppliers, delivering to the whole of the uk. Dla energy provides integrated material management for the dod. The top countries of suppliers are china, taiwan, china, and india, from which the percentage of 4140 material supply is 97%, 2%, and 1% respectively. Aisi 4140 ground steel bar can be supplied, providing a quality alloy steel precision ground bar to tight tolerances. To see matwebs complete data sheet for this material including material property data, metal compositions, material suppliers, etc, please click the button below. It is widely used across numerous industries and is an excellent material choice due to its toughness, high fatigue strength, and abrasion and impact resistance. Jun 19, 2018 aisi 4140 steel is a low alloy steel containing chromium, molybdenum, and manganese. In essence it states that any material that is equivalent to a particular p number material can also be welded by the welder that was qualified to that p number. You can weld 4140 steel to asme ix, and you can assign it a p number of unassigned, as long as you follow the code rules. Cyclic properties for 4140 quenched and tempered steel iteration 69.

For example, the p number 1 is assigned to carbon manganese or low carbon steel base metals. It is similar to 4140 which has a higher carbon level giving 4 improved weldability, at the expense of through thickness strength. Except for being more crack sensitive and therefore needing a preheat before welding on certain applications, the puddle looks very much the same as welding plain carbon steel. Make maximum use of commercial and hostnation sources of supply to meet peacetime and wartime requirements as directed in dodi 4140. A wide variety of 4140 material options are available to you, there are 324 suppliers who sells 4140 material on, mainly located in asia. It covers material grades of f42, f46, f50, f52, f56, f60, f65 and f70. If your material is not listed, please refer to our search help page for assistance. Sae 4140 has a tensile strength of 655 megapascals and sae 4150 a tensile strength of 729. This number is used to group similar base metals, allowing qualification of an entire selection versus qualification of just one. Provide members for the dod csg to address bulk petroleum supply chain issues and. It shows good overall combinations of strength, toughness, wear resistance and fatigue strength. Ku25t performs extremely well when machining most steels, stainless steels, cast irons, nonferrous materials, and superalloys under stable conditions. Similar to alloy grade aisi 4 chrome moly alloy steel but with a slightly higher carbon. Aisisae 4140 grade is a versatile alloy with good atmospheric corrosion resistance and reasonable strength.

Welding 4140 is a lot like welding 4 which is a lot like welding plain old steel. Alloy steel 9crl80, alloy steel crl80, alloy steel 4, alloy steel 4m, alloy steel 4140, alloy steel 4145, alloy steel 4145m, alloy steel 4340, alloy steel 4330 vmod, alloy steel 8630mod, alloy steel c90, alloy steel c110, alloy steel l80, alloy steel p110, alloy steel q125, alloy steel t95. Aisi 4140 steel, oil quenched, 540c f temper, 25 mm. To unsubscribe from this group and stop receiving emails from it, send an email to materials weld. However, different steels have different hardening steps to follow. Technical information workpiece material categories. If you already have pdf viewing software installed, insert the cdrom into your cd drive and click the view ebook button in the software menu to open the ebook. These bars were machined into smooth axial fatigue specimens. Manufacturers use sae 4140 for making average size automotive parts, such as axle shafts, propeller shafts and steering knuckles. Some of the most difficult steels to harden are tool steels. Chrome alloy steels, such as 4, 4140, and 4340 are so named because chromium.

Steering group csg to address bulk petroleum supply chain issues and recommend courses of action. Indiscriminant substitution of materials in a set of pnumbers or group numbers may lead to problems or potentially failures. Base metal grouping for welding procedure and performance. As it contains some of the information from this technical manual, we. A wide variety of 4140 steel material options are available to you, such as hot rolled, cold rolled, and erw. Dla hq logistics operations, order management j341. This report presents the results of tensile and fatigue tests performed on a group of 4140 quenched and tempered steel samples. With a higher cobalt content than ku10t, this grade provides the toughness needed to handle the demands of grooving, threading and cutoff operations.

Comparison of surface finish values before and after. Steel, generally supplied hardened and tempered to condition t in sections up to 100mm, with a tensile strength of. Aisi 4140 alloy steel aisi 4140 steel stockholders and suppliers, delivering to the whole of the uk. Aisi sae 4140 alloy steel is a chromium molybdenum alloy steel specification widely used in general purpose high tensile steel for components, like axles, shafts, bolts, gears and other applications. The search phrase you entered, 4140, is common to 69 materials, by searching on the term s 4140 in most common text fields. Comparison of materials between jis and foreign standards1 japan industrial standards steel types related to foreign standards standard number code name chrome molybdenum nickelchrome steel nickelchrome chrome steel steel national standard of the former ussr stainless steels c heat resisting steels and related materials. To unsubscribe from this group and stop receiving emails from it, send an email to materialsweld. Astm a694 refers to the material of carbon and alloy steel pipe flanges, fittings, valves and parts for high pressure liquid transmissions. This alloy is used as forgings in the aerospace and oil and gas industries, and has myriad uses in the automotive, agricultural and defense industries, typical uses are forged gears, shafts, and spindles. Alloy steel material grades alloy steel property data sheet. I had a few jobs come in the shop the other day that were made out of 4140. Forging of this steel should be carried out between.

The following datasheet gives an overview of aisi 4140 alloy steel. Handbook of comparative handbook world steel standards. Figure 10 jominy hardenability curve for 4140 and 4140hw the data represents an average of jominy results from several 4140 and 4140hw heats. Aisi 4140 steel, oil quenched, 540c f temper, 25 mm 1 in. Mar 05, 2020 secretary of defense memorandum, and dod instruction dodi 4140. Results are displayed up to a maximum of 200 materials per page. Workpiece material category examples low carbon 4140 alloy steel aisi 4140 steel stockholders and suppliers, delivering to the whole of the uk.

It is supplied as round bar commonly in the hardened and tempered condition with a hardness of 1822 hrc. Astm a694 flange specifications grade f52, f60, f65 octal. Aisi 4340 steel is a medium carbon, low alloy steel. Data is typical and should not be construed as actual values for any category. Aisi 4140 steel bar, steel plate, flats supplier, stockist and exporter. The following table shows the chemical composition of aisi 4140. West yorkshire steel are aisi 4140 steel stockholders of round bar. When a base metal with a uns number designation is assigned a pnumber, then a base metal listed in a different asme material specification with the.

A black oxide finish makes 4140 steel look good tig welding 4140. Aisi 4140 alloy steel is a chromium, molybdenum, and manganesecontaining low alloy steel. Similar to grade aisi 4 but with a slightly higher carbon content. Not many grades can match the versatility and usefulness of 4140. It is widely used across numerous industries and is an. Posted in american society of mechanical engineers. To see matwebs complete data sheet for this material including material property. Astm a694 have several grades from f42 to f70, and each grade is specified based on the minimum yield strength as below table 1. Sae aisi acero 4140 ficha tecnica, propiedades, dureza.

Aisi or sae 4150 grade is a lowalloy steel containing chromium and molybdenum as strengthening agents. The material was provided by the american iron and steel institute aisi in the form. Diameters can be supplied as full bar lengths or cut pieces. Base metal grouping for welding procedure and performance qualification 1. Frustrated material, july 15, 2014 o dla distribution memorandum, receiving kind, count and condition. In order to view the ebook of comparative world steel standards you must have pdf viewing software such as adobe acrobat or adobe reader installed prior to running the cdrom. Contact our experienced sales team who will assist you with your aisi 4140 alloy steel enquiry. These base metals are grouped by material and assigned p numbers based on what material they are. It is a general purpose hightensile steel with medium strength level and good impact properties. This alloy finds many applications for the aerospace and oil and gas industries, along with uses the automotive, agricultural and defense industries. The material was provided by the american iron and. Aisi 4140 low alloy steel containing chromium and molybdenum is the most widely used alloy for oil patch applications. The material was provided by the american iron and steel institute aisi in the form of 2.

Hardening steels involves the basic process of heating the steel to organize the crystalline structure in a uniform way and then rapidly cooling it by quenching it to lock the molecular makeup of the steel. Having trouble sourcing 4140 in any form, call michlin metals today. Sae 4140 and 4150 have carbon contents averaging 0. The higher carbon content of aisi 4140 gives greater strength and heat. Data sheets provided by xometry contain material sourced through trusted oems, material distributors, and databases.