Effect of ion nitriding on fatigue behaviour of aisi 4140 steel article pdf available in materials science and engineering a 27912. Metaux solutions 4140 annealed is a highquality, 4140 alloy steel intended for all. Aisi sae 4140 alloy steel aisi 4140 forgings all metals. This paper presents the investigations carried out to study the microstructure and mechanical properties of aisi 304 stainless steel and aisi 4140 low alloy steel joints by gas tungsten arc welding gtaw, electron beam welding ebw and friction. The source standarts should always be checked for the specific purpose for each material, in case of doubt buy, sell, suppliers search product 4140 online. The search phrase you entered, 4140, is common to 69 materials, by searching on the terms 4140 in most common text fields. Alloying elements and thermal treatments, such as quenching and tempering, greatly influence the hardness and strength of the steel.
It is a general purpose hightensile steel with medium strength level and good impact properties. The additions of chromium and molybdenum are why aisi 4140 is considered a. Results are displayed up to a maximum of 200 materials per page. To see matwebs complete data sheet for this material including material property data, metal compositions, material suppliers, etc, please click the button below. Mirraloy is a good choice of alloy steel for machined parts, steel shafts, and steel rods requiring higher resistance to toughness, flex, torque and general wear. Astm a29 grade 4140 chromium molybdenum steel matmatch.
Aisi 4 is a chromium molybdenum alloy steel specification. Pdf bimetallic joints of low alloy steel and stainless steel are widely used in high temperature corrosive environments. Aisi 4140 annealed cold finished steel specialty steel co. It has high fatigue strength, abrasion and impact resistance, toughness, and torsional strength. Machine construction, machine parts, axes, knuckles, connecting rods, crankshafts, gear shafts, pinions, gears, bandages, base plates, assembling parts. Aisi 4 alloy steel aisi 4 steel stockholders and suppliers, delivering to the whole of the uk. Pdf assessment of mechanical properties of aisi 4140 and aisi. For specific applications where mechanical properties higher than 34 hrc are required, hardening can be. We offer an extensive inventory of hardtofind sizes and lengths including 1012 ft random lengths, 2024 ft random lengths and custom cuttolength options. Effect of ion nitriding on fatigue behaviour of aisi 4140 steel.
Datasheet for steel grades carbon steel astm 4140 astm 4140 standard. The chromium content provides good hardness penetration, and the molybdenum content ensures uniform hardness and high strength. Chemical composition and properties of european equivalents en for 4140 usa, aisi, astm, uns. Aisi 4, 4140, 4150, 4340, 1018, 1020 and 1045 depending upon the requirement. Machinability machinability of this alloy is good in the annealed condition. Aisi 4140 steel annealed at 815c 1500f furnace cooled 11c 20fhour to 665c 1230f, air cooled, 25 mm 1 in. Similar to alloy grade aisi 4 chrome moly alloy steel but with a slightly higher carbon. Low alloy steels rely on elements other than just iron and carbon to enhance their mechanical properties. The free standing facility has the capacity to finish 160,000 tons of bars annually.
We stock aisi 4140 steel in squares, flats and hexagons. Aisi 4140 alloy steel is a chromium, molybdenum, and manganesecontaining low alloy steel. The following information gives an overview of 4140 steel properties, chemical composition and etc. A metallurgical investigation of the effects of double. I ve never turned it on a lathe, but have milled quite a bit of 4140 plate on verticals and horizontal mills. Order online or call 8669386061 to speak with a representative. Steel is an iron alloy which comes in different compositions and with different properties to properly suit its intended use. Speedy metals information for 4140 decarb free annealed. Bar data handbook aisisae chemical compositions and metallurgical data. Controlled sulfur additions to enhance machinability and extend tool life introduction arcelormittal usa is the only steel producer providing three families of steels to meet the complete freemachining requirements of the metalworking industry, c1119c1144, cleancut carbon and. Aisi 4140 used in oil and gas industry and large machinery strutural.
Aisi 4, 4140, 4150, 4340, 1018, 1020 and 1045 depending upon. Usually supplied hardened and tempered to condition t in sections up to 100mm with a tensile strength of 850 mpa. The higher carbon content of aisi 4140 gives greater strength and heat. We offer an extensive inventory of hardtofind sizes and lengths including 1012 ft random lengths, 2024 ft random lengths and custom cutto. Astm 4140 chromemolybdenum steel can be oil hardened to a relatively high level. We are committed to ensure the safety of our customers, vendors and employees. The search phrase you entered, 4140, is common to 69 materials, by searching on the term s 4140 in most common text fields. The prehardened condition is heat treated to a medium hardness hrc 2832 and is designated as 4140 ht. The following datasheet gives an overview of aisi 4140 alloy steel.
Through variations in the method of heat treating 4140, an exceptionally wide range of properties can be attained. I usually milldrill at about 65 per cent feed and speed of mild steel. Tumse dil kya laga liya humne full hd movie free download 1080p. Mixing steel with various amounts of other elements produces steel alloys with mechanical properties superior to steel alone. In aisi 4140, additions of chromium, molybdenum, and manganese are used to increase the strength and hardenability of the steel. Machinability aisi 4140 alloy steel has good machinability in the annealed condition. Jun 20, 20 lowalloy steels, on the other hand, are used to achieve better hardenability, which in turn enhances other mechanical properties. Have some 2 round cut offs i would like to experiment with.
Sae aisi 4140 steel properties, material heat treatment. Forming as with all the low alloy steels forming may be done by conventional methods with the alloy. Alloy 4140 is the most widely used alloy for oil patch applications. Aside from the components of steel, heat treatment also affects the properties of the metal. Similar to grade aisi 4 but with a slightly higher carbon content. Aisi 4140 steel bar, steel plate, flats supplier, stockist and exporter. Alloy 4140 aisi 4140 is a low alloy steel containing chromium and molybdenum. Consideration should be given to use mirraloy in place of certain commercial alloy and carbon steel grades including. Properties, types, production, and applications hot rolled steels introduction to steel grades materials used in bridges what is astm a36. If your material is not listed, please refer to our search help page for assistance. Aisi 4140 steel grades, properties and global standards. This page cover the aisi 4140 chemical element, mechanical properties, aisi 4140 datasheet, cross reference of aisi 4140 steel, mainly used for.
It is manufactured by hot working and then cold finishing the steel. Otai special steel is astm en19 steel stockholders and suppliers from china. Go to for stainless steel, tool steel, aluminum, bronze, brass, cast iron and copper. Aisi sae 4140 alloy steel can be made into round steel bar, flat. Steel, generally supplied hardened and tempered to condition t in sections up to 100mm, with a tensile strength of. In the heat treated and quenched condition machining is best limited to finish grinding. Pdf aisi 4140 steel mechanical properties improvement through. Scope astm a519 covers several grades of carbon and alloy steel seamless mechanical tubing. Aisi 4140h is an h steel grade alloy steel, commonly called aisi 4140h chromiummolybdenum steel. The following table shows the chemical composition of aisi 4140. Note that welding with the alloy in the heat treated condition will affect the mechanical properties and. Properties, production, examples and applications cold rolled steels electrical steel. Aisi 4140 steel, oil quenched, 540c f temper, 25 mm. It also contains the use of astm 4140,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Controlled sulfur additions to enhance machinability and extend tool life introduction arcelormittal usa is the only steel producer providing three families of steels to meet the complete free machining requirements of the metalworking industry. Pdf heat treatment of 1045 and 4140 steel aldrin jan. It can be formed using conventional techniques in the annealed condition. The major criteria used for comparing alloy steels are chemical composition and tensile strength. Figure 9 mechanical properties for 4140 and 4140hw the data represents a mechanical property comparison of several 4140 and 4140hw heats. Pdf investigation on aisi 304 austenitic stainless steel. Figure 10 jominy hardenability curve for 4140 and 4140hw. During hardening, steel is heated until it transitions to gammaphase iron, or austenite, which has a facecentered cubic structure asm handbook, volume 4a 20. Aisi or sae 4 grade is a lowalloy steel containing chromium and molybdenum as strengthening agents. To achieve these desire properties after raw product of steel, the steel can undergo a number of different heat treatments. Follow the links below to view complete property information.
Pre hardened and tempered 4140 can be further surface hardened by flame or induction hardening and by nitriding. With a lower carbon content range aisi 4 provides better. Aisisae 4140 grade is a versatile alloy with good atmospheric corrosion resistance and reasonable strength. Alloy 4140 aisi 4140 is one of the most popular direct hardening crmo alloy steel plates that have the ability to develop an extensive range of hardness and strength. 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.
It is supplied as round bar commonly in the hardened and tempered condition with a hardness of 1822 hrc. As mentioned earlier, the chips come off easy and it bores like a dream. It is composed of chromium, manganese, carbon, silicon, molybdenum, sulfur and phosphorus submerged in a matrix of iron. This page displays only the text of a material data sheet. Atlas 4140 is a chromiummolybdenum throughhardening steel of medium hardenability. 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. Datasheet for steel grades carbon steel aisi 4140 aisi 4140 standard.
Alloy description timkensteels 4140hw grade is a finegrained, lowalloy steel that offers optimum heattreat response in heavier crosssections. Usually supplied hardened and tempered to condition t in sections up to 100mm with a tensile strength of 850 mpa and aiming for this strength range in larger sections. Good mechanical properties may be obtained by normalizing only where the required. Astm a53 carbon steel pipes astm a564 stainless steel age hardened carbon steel. The following datasheet will provide an overview of aisi 4140h alloy steel. Sae 4140 aisi 4140 steel is a crmo series chrome molybdenum series low alloy steel, this material has high strength and hardenability, good toughness, small deformation during quenching, high creep strength and longlasting strength at high temperature. Assessment of mechanical properties of aisi 4140 and aisi 316 dissimilar weldments. Listed below are several curves detailing the stressstrain relationship and. Aisi 4140 alloy steel aisi 4140 steel stockholders and suppliers, delivering to the whole of the uk. It requires more pressure or force for forming because it is tougher than plain carbon steels. Any special considerations to turning or milling 4140 steel. A519 4140 tube american piping products stocks a5194140 tube in the following grades. Astm 4140 steel is a alloy structural steel belong to astm a29a29m steel grade standard. For this reason, it is often used as stock for forging, as 4140 has self scaling properties.
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