Note that welding with the alloy in the heat treated condition will affect the mechanical properties and a post weld heat treatment may be needed. To see matwebs complete data sheet for this material including material property data, metal compositions, material suppliers, etc, please click the button below. Aisi 4 alloy steel aisi 4 steel stockholders and suppliers, delivering to the whole of the uk. It is generally supplied in the hardened and tempered condition, especially in the oil and gas sector to achieve. Aisi 4140 steels were the most used high strength low alloy steel in the application of many industries. Follow the links below to view complete property information. Aisi 4140 alloy steel is a chromium, molybdenum, and manganesecontaining low alloy steel. Alloy steel 4 is an intermediate strength material. Similar to grade aisi 4 but with a slightly higher carbon content. Specimens for 2 and 4 rounds are taken from the halfradius position, as is con ventionally required by most specifications. Strength properties of the joint will not be the same as the base metal. Dod policy is to exchange, rather than replace, eligible nonexcess property whenever.
Cost er student s ecial costs included in bid descri tion of s. Saeaisi 1045 s45c, g10450 carbon steel saeaisi 4140 scm440, g41400 crmo steel. It is generally supplied in the hardened and tempered condition in the tensile range of 850 mpa t condition but can be heat treated to 700 1200mpa dependent on section size r w condition. Astm sae 4140 aisi 4140 steel is crmo series low alloy steel, mechanical properties, heat treatment, rockwell hardness, welding, equivalent material uses followers sunday, april 12, 2020. The thermal properties of aisi 4140 alloy steel are given in the following table. The effect of warm rolling reduction ratio ranging from 60% to 90% on microstructures and mechanical properties of steels was investigated. Otai special steel is astm en19 steel stockholders and suppliers from china. Similar to alloy grade aisi 4 chrome moly alloy steel but with a slightly higher carbon content. Throughhardening low alloy steel bar 4340 colour code. Aisi 4140 steel is a low alloy steel containing chromium, molybdenum, and manganese.
Liquid steel is then poured into a cast, where it is cooled down slightly to form a block or cylinder of austenite. Heating about 850 c 1562 o f with a sufficient holding time 1hourinch. The effects of induction hardening on wear properties of aisi 4140 steel in dry sliding conditions. In this study, ultrafine structured aisi 4140 steels with ultrahigh strength, sufficient ductility and low yield ratio were obtained through warm rolling and subsequent quenching without tempering. Technical properties heattreatable steel tempered condition that can be used for a wide range of applications with a high degree of strength and toughness. This segregation within the dendritic structure results in deterioration of the mechanical properties and corrosion resistance of the joints 8 and 9.
Aisi 4140 steel stockholders and suppliers, delivering to the whole of the uk. Uzkut and ozdemir 3 are investigated the effects of various heating rates on the mechanical properties of the aisi 1020, aisi 1040 and aisi 4140. Aisi 4140, 4142, or 4105 14 thru 212 over 212 thru 4. For each property being compared, the top bar is saeaisi 1045 steel and the bottom bar is saeaisi 4140 steel. Effect of heavy warm rolling on microstructures and.
Sae 4140 uns g41400 aisi 4140 is a 1% crmo through hardening steel, used particularly where strength and impact toughness is required. Good through hardening properties with excellent toughness due to the low carbon and high alloy content, also suitable for nitriding. Aisi 4 is a chromium molybdenum alloy steel specification. This grade is delivered in a prehardened condition at a hardness level of 3337hrc.
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. The higher carbon content of aisi 4140 gives greater strength and heat. In order to assis t the reader in this selection, euro inox makes the following tables of technical properties available. A metallurgical investigation of the effects of double. Pdf effects of processing on the transverse fatigue. Aisi 4140 is a chromium molybdenum alloy steel specification widely used in the oil and gas industry. Aisi 4140 alloy steel aisi 4140 steel stockholders and suppliers, delivering to the whole of the uk. Often used for demanding applications in automotive engineering. Mechanical properties of boronized aisi 316, aisi 1040, aisi 1045 and aisi 4140 steels article pdf available in acta physica polonica series a 1153 march 2009 with 979 reads. Properties shown are those of coarse thread heavy hex nuts. Experimental method aisi 1040, 1045, 4140 and 316 steels were used in this study. The effects of inclusions due to steelmaking processes on the fatigue life of aisi 4140 have been investigated.
Aisi 1018 mildlow carbon steel offers a good balance of toughness, strength and ductility. This page is mainly introduced the aisi 4140 datasheet, including chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and micro structure, etc. Figure 9 mechanical properties for 4140 and 4140hw the data represents a mechanical property comparison of several 4140 and 4140hw heats. Material stocked by atlas complies with grade as1444 grade 4140 andor astm a434. Tensile specimens for 12 and 1 rounds are taken from the centers of the bars. Aisi 4140 can be supplied as steel plate sheet, round steel bar, steel tubepipe, steel stripe, steel billet, steel ingot, steel wire rods. Properties shown are those of coarse 8pitch thread heavy hex nuts. Lighter gauges offer lighter weight but still maintain great strength, making it excellent for auto racing and aerospace.
With a lower carbon content range aisi 4 provides better. Jade band marigold introduction atlas 4340 is a nominally 1. If you need to meet specific physical properties for your application, please contact an alro sales representative to make sure this material will meet your needs. An investigation on the microstructure and mechanical properties of directquenched and tempered aisi 4140 steel article in materials and design 3. An investigation on the microstructure and mechanical. Pdf mechanical properties of boronized aisi 316, aisi. Alloy steel aisi 4140 directory career news industrial metal alloys. It is supplied as round bar commonly in the hardened and tempered condition with a hardness of 1822 hrc. Sizes larger than 4 round will not show materially lower properties. Aisi 4140 steel steel grades, properties and global. It also contains the use of aisi 4140,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Pre hardened and tempered 4140 can be further surface hardened by flame or induction hardening and by nitriding. Stainless steel, special steel, compressor blading, turbine blading, superalloy supplier. The physical properties of aisi 4140 alloy steel are highlighted in the following table. Properties with values for just one material 1, in this case are not shown. Figure 10 jominy hardenability curve for 4140 and 4140hw the data represents an average of jominy results from several 4140 and 4140hw heats.
In quenched and tempered condition it is used in machine construction. Sae aisi 4140 steel properties, material heat treatment. Results are displayed up to a maximum of 200 materials per page. 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. Tables of technical properties of stainless steels flat products the selection of the appropriate stainless steel grade for each applic ation is the result of variou s considerations. The search phrase you entered, 4140, is common to 69 materials, by searching on the terms 4140 in most common text fields.
Pdf effect of charpy impact test on microstructure. It mainly introduce the chemical composition,mechanical properties, heat treatment, processing performance and performance standards about sae 4140. Aisi 4140 709m40 is a 1% crmo medium hardenability general purpose high tensile steel. Assessment of mechanical properties of aisi 4140 and aisi. For various aisi steel west yorkshire steel aisi steel aisi steel specifications stockholders and suppliers, delivering to the whole of the uk. Mechanical properties of boronized aisi 316, aisi 1040. Properties shown are those of nonplated or noncoated coarse thread hex nuts. Heat treatment of 4140 steel is a significant determinant factor as machinability characteristics for manufacturing 2. The steels of aisi 4140 category find applications in manufacturing of gears, bolts, couplings, spindles, tool holders, sprockets, drill collars, tools, and so on in automotive, petroleum, and gas industries 2,3.
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