View source for mechanical properties of 4140 steel evocd. Materials alloys steel alloy steel aisi 5015 materials alloys steel alloy steel astm a387 grade 2 materials alloys steel alloy steel aisi 52100. It is used to manufacture highstrength parts under impact loads and. Alloy steel 4140, also sold under the name aisisae 4140, is a low alloy steel that contains chromium, molybdenum, and manganese. Deform steel with large grains, then normalize to make grains small. It has high fatigue strength, abrasion and impact resistance, toughness, and torsional strength. Fatigue crack growth behavior of austempered aisi 4140 steel with. The physical properties of aisi 4140 alloy steel are highlighted in the. Printed edition of the special issue published in metals. The desirable properties of the aisi 4140 include superior toughness, good. Nickel silicone bronze stainless steel steel tin titanium tool steel tungsten. The mediumcarbon low alloy family of ultrahighstrength steels includes aisisae 4, the higherstrength 4140, and the deeper hardening, higherstrength 4340. Aisi 4140 is suitable for a variety of applications in the oil and gas sector.
Similar to grade aisi 4 but with a slightly higher carbon content. Timkensteels 4140hw grade is a finegrained, lowalloy steel that offers optimum heattreat response in heavier crosssections. Testing the hardness of metals types and comparisons. Chemical analysis composition of alloy steel table 4. The 4140 alloy steel grade contains chromium and molybdenum for high strength and has good machinability. Alloy description timkensteels 4140hw grade is a finegrained, lowalloy steel that offers optimum heattreat response in heavier crosssections. Aisisae 4140 grade is a versatile alloy with good atmospheric corrosion resistance and reasonable strength. Alloy description timkensteels 4140hw grade is a finegrained, low alloy steel that offers optimum heattreat response in heavier crosssections. Alloy 4140 ams6349 is a low alloy steel containing chromium and molybdenum. Minimum silicon limit for acid open hearth or acid electric furnace alloy steel is 0. Ideal for forging and heat treating, 4140 alloy is tough, ductile, and wear resistant. Alloy 4140 aisi 4140 is one of the most popular direct hardening crmo alloy steel.
Steels that contain specified amounts of alloying elements other than carbon and the commonly accepted amounts of manganese, copper, silicon, sulfur, and phosphorus are known as alloy steels. We maintain huge stocks and you can easily buy alloy steel aisi 4140 threaded forged fittings and other forms of aisi 4140 alloy steel at one of the best prices. It is composed of chromium, manganese, carbon, silicon, molybdenum, sulfur and phosphorus submerged in a matrix of iron. Aluminum blue temper brass bronze carbon chrome copper iron lead. Alloying elements and thermal treatments, such as quenching and tempering, greatly influence the hardness and strength of the steel. Through variations in the method of heat treating 4140. Feasibility exploration of superalloys for aisi 4140 steel. Chemical content identification factors and composition standards p.
This medium carbon alloy steel grade is widely used for many applications requiring high tensile strength and ductility combined with hardness in the rc 40 range. Alloying elements include chromium and molybdenum, and as a result these materials are often informally referred to as chromoly steel. Impact energy relates to toughness but when it comes to fracture toughness data, 4340 will have higher toughness over 4140 at similar strength levels quench and temper. The 4140 alloy steel sheet has an unpolished mill surface, meets american society for testing and materials international astm a6 specifications, and has a standard tolerance. The chromium content provides good hardness penetration, and the molybdenum content ensures uniform hardness and high strength. Stainless steels generally contain between 1020% chromium as the main alloying element and are valued for high corrosion resistance. Where it makes sense, castle metals can simplify our customers inbound network and reduce our customers total cost of ownership. Alloy steel is steel that is alloyed with a variety of elements in total amounts between 1. Chrome alloy steels, such as 4, 4140, and 4340 are so named because. Make soft steels for good forming by heating to get g, then cool in furnace to get coarse p. Can anyone tell me what would be the best way to turn it.
The main objective of this study was to investigate some morphological and mechanical properties of aisi 4140 steel with different normalization temperature for air, oil and water quenching environment. Turning 4140 alloy steel never ran this stuff before and we have bought all the right tools. A number in parentheses indicates the year of last reapproval. Aisi or sae 4 grade is a low alloy steel containing chromium and molybdenum as strengthening agents. Low alloy steels rely on elements other than just iron and carbon to enhance. Aisi 4140 is a chromium molybdenum alloy steel specification widely used in the oil and gas industry. Aisi 4140 steel bar, steel plate, flats supplier, stockist and exporter. The following datasheet gives an overview of aisi 4140 alloy steel. The carbon content of both 1045 and 4140 determines the last two digits of their grade number. The 4 alloy steel grade contains chromium and molybdenum for strength and hardenability, with lower carbon content than 4140 alloy steel to provide better weldability. Once the e book is opened, a menu will appear with several options to navigate and search through the e book. Metal alloy composition search by constituent element chemistry leads to property data for ferrous stainless steel, cast iron, tool steel, alloy steel and nonferrous metals beryllium, nickel, copper, aluminum, ytitanium, superalloys including inconel, invar and nimonic alloys, and other engineering materials. B typical steel compositions used for this grade include 4140, 4142, 4145, 4140h, 4142h, and. Carbon and alloy steels 19 effects of chemical elements 19 aisisae standard grades and ranges 25 hardenability of steel 43 endquench hardenability testing 44 calculation of hardenability 46 hardenability limits tables 51 thermal treatment of steel.
Aisi or sae 4 grade is a lowalloy steel containing chromium and molybdenum as strengthening agents. Alloy speedy metals online industrial metal supply. Handbook of comparative handbook world steel standards. Chemical composition and properties of european equivalents en for 4140 usa, aisi, astm, uns. Go to for stainless steel, tool steel, aluminum, bronze, brass, cast iron and copper. Aisi 4140 chromemolybdenum steel can be oil hardened to a relatively high level of hardness.
Lss 4140 and 4142ht are versatile, alloy steels that are used in a variety of tooling and other industrial applications. The 4340 alloy steel by virtue of having nickel as an alloying element increases hardenability and increases toughness over 4140. It is mainly used after quenching and tempering state. Similar to alloy grade aisi 4 chrome moly alloy steel but with a slightly higher carbon. Also from this family are descriptions for the 300m, d6a and d6ac, 6150, and 8640 steels. Lss 4140 is the classic aisi 4140 alloy steel that is sold in the annealed condition at a hardness less than or equal to 217 hbw. Jaydeep steels is a leading stockist, distributor, and supplier of alloy steel aisi 4140 threaded forged fittings from india. Introduction american iron and steel institute aisi 4140 alloy steel is one of the widely used materials for gears, blades, and so forth in many industrial applications due to high strength and ductility. With over 11% chromium, steel is about 200 times more resistant to corrosion than mild steel. Known for its impact and abrasion resistance, alloy steel 4140 also. The aisi stopped being involved because it never wrote any of the specifications. Usually supplied hardened and tempered to condition with a tensile strength of 850 mpa. Aisi sae 4140 alloy steel aisi 4140 forgings all metals.
Aisisae steel numbering system engineering toolbox. Aisi 4140 alloy steel is a chromium, molybdenum, and manganesecontaining low alloy steel. Aisi 4140 pipes a519 aisi 4140 pipes aisi 4140 alloy steel. Known for its impact and abrasion resistance, alloy steel 4140 also offers users outstanding fatigue and torsional strength. Sae aisi 4140 steel properties, material heat treatment. The rod has been cold finished, a process of removing the outer layer to achieve the specified dimensions. The first digit 1 identifies that they are both carbon steels, and the second digit 0 identifies that there were no modifications to the alloy. The higher carbon content of aisi 4140 gives greater strength and heat treatment capabilities. The chromium content provides good hardness penetration, and the molybdenum imparts uniformity of hardness and high strength. Prior to 1995 the aisi was also involved, and the standard was designated the aisisae steel grades. It offers a strong balance of strength, toughness and wear resistance. 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.
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. Aisi 4140 threaded forged fittings, sae 4140 alloy steel. The complexity of the weldability is as varied as the alloy steel composition and its application. 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.
Lss 4140 is the classic aisi 4140 alloy steel that is. This material can be supplied to aisi steel standards. There is a huge difference between these two alloys chemically, namely the nickel content. Small quantities of certain elements are present in alloy steels which are not specified or. They comprise different kinds of steels having composition exceeding. Speedy metals information for 4140 annealed cold roll steel. We hope this book will help in choosing the best steel for. Aisi 4140 chromemolybdenum high tensile steel azom. A829 4140 steel plate is structural quality alloy steel plate with specific chemical composition requirements given in detail below. There cannot be one fit all solution in these cases. Aisi 4140 steel stockholders and suppliers, delivering to the whole of the uk. 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. Low alloy steels present specific challenges regarding welding and fabrication. Aisi 4140 alloy steel aisi 4140 steel stockholders and suppliers, delivering to the whole of the uk.
The cold finished 4140 alloy steel bars are calcium treated. 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. This page is mainly introduced the astm 4140 datasheet, including chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and micro structure, etc. The e book of comparative world steel standards on cdrom is a fully searchable adobe pdf file. Welding is possible through most popular techniques, and it has a high level of ductility.
983 148 1144 594 1164 385 1182 458 78 159 1130 198 1027 1417 1436 1191 734 1565 201 591 1380 1093 562 23 897 488 839 600 790