Aisi 4140 modified is a low alloy hardened and tempered steel suitable for the manufacture of oil and gas downhole tools used in production and completion. Download table chemical composition of the 4140 alloy steel. A broad range of strength and toughness is attainable through variations in heat treatment. Chemical content identification factors and composition standards p. Carbon and alloy steel chemical composition specification. With the capability to both develop and manufacture components, we can. The properties are obtained through control of carbon and manganese. Customer agrees there will be no liability on the treater in contract or tort for any special, indirect or consequential damages. Usually supplied hardened and tempered to condition with a tensile strength of 850 mpa. A wide variety of alloy steel 4140 sheet options are available to you, such as aisi, jis, and astm. Aisi or sae 4 grade is a lowalloy steel containing chromium and molybdenum as strengthening agents.
Due to its toughness and other positive characteristics, alloy steel 4140 is found in a wide variety of applications such as. The table below highlights the chemical composition of aisi 4140. D2 tool steel is a versatile highcarbon, highchromium, airhardening tool steel that is characterized by a relatively high attainable hardness and numerous, large, chromiumrich alloy carbides in the microstructure. And whether alloy steel 4140 sheet is container plate, flange plate, or ship plate. In the heat treated and quenched condition machining is best limited to finish grinding. Pdf properties of mim 4140 alloy after injection molding. Go to for stainless steel, tool steel, aluminum, bronze, brass, cast iron and copper. These alloys have good ductility, but are tougher than plain carbon steel and thus usually require more force, or pressure, for forming. Alloy steel bar, alloy round steel bar, high tensile alloy steel bar manufacturer supplier in china, offering aisi 4140 42crmos4 1. Square steel tube is a welded structural grade tubing that is available in either type a5 or a500 grade b, depending on its size and wall thickness.
For the ladle analysis the following limiting values in % are applicable a product analysis can be. To be considered alloy steel 4140, a product must contain a certain chemical composition that includes. Detail hobart brothers performance welding products. The aisisae 4 and 4140 specifications refer to a chemical composition range only, as opposed to both a chemical composition and mechanical property ranges. Aisi 4140 steel is a low alloy steel containing chromium, molybdenum. Both quenched and tempered saeaisi 4140 and saeaisi 1144 steel are iron alloys. Nitriding is carried out at 490 oc 530 c, followed by slow cooling no quench reducing the problem of distortion. They have a very high 99% of their average alloy composition in common. This steel is offered in a wide range of conditions including but not limited to. Either grade is ideal for all structural applications, general fabrication, manufacturing and repairs. Aisisae 4140 grade is a versatile alloy with good atmospheric corrosion resistance and reasonable strength.
The effect of diameter size on the microstructure and mechanical properties of the samples processed by dqt and rqt procedures are shown in fig. 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 steel, sae 4140 steel, aisi 4140 steel bar manufacturer supplier in china, offering aisi 4140 sae 4140 alloy steel round bar, high quality slotted angle bar customized for shelf system, high quality steel slotted angle bar for racking and shelving and so on. Home products 4140ht 4140ht is a high alloy tool steel that has good strength, toughness, and mechanical properties. Aisi 4140 chromemolybdenum high tensile steel azom. Cold finished round annealed steel is available in sizes from 14 in. Its chromium content provides good hardness penetration, and the molybdenum imparts uniformity of hardness and high strength. Alloy steels are basically carbon steels with certain chemical elements added to improve the properties of the metal for specific applications or end products. The following information gives an overview of 4140 steel properties, chemical composition and etc.
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. It shows good overall combinations of strength, toughness, wear. Sae aisi 4140 steel properties, material heat treatment. The following datasheet gives an overview of aisi 4140 alloy steel. Forming as with all the low alloy steels forming may be done by conventional methods with the alloy. Fatigue crack growth behavior of austempered aisi 4140 steel with. In these cases, aisisae 4 and 4140 low alloy steels are often used because their chemical composition allows them to be heat reated to high tensile strength and hardness. Yield strength, tensile strength and ductility values for steels at room temperature. They comprise different kinds of steels having composition exceeding the limitations of b.
Its chemical composition is as follows aisisae 4140 grade is a versatile alloy with good atmospheric corrosion resistance and reasonable strength. Alloy steels are designated by aisi fourdigit numbers. Alloy speedy metals online industrial metal supply. These carbides provide good resistance to wear from sliding contact with other metals and abrasive materials. Alloy steel aisi 4140 directory career news industrial metal alloys. Alloy 4140 ams6349 is a low alloy steel containing chromium and molybdenum. Other designations of aisi 4140 alloy steel include uns g41400 and aisi 4140. The 22 mm diameter steel bar was received in hot rolled condition and austenitized at 1123 k, for 1 h, quenched in oil, and then tempered to a hardness of 320 vickers hardness scale vhn with astm austenite grain size. A standard medium carbon, crmo low alloy aisi 4140 steel has been used in the study and the chemical composition of the steel was given in table 1. High speed steel d2 steel d2 technical data tool steel. It has high fatigue strength, abrasion and impact resistance, toughness, and torsional strength. Aisi 4140 steel stockholders and suppliers, delivering to the whole of the uk. Similar to grade aisi 4 but with a slightly higher carbon content. And we are professional astm 4140 steel alloy supplier, stockist and exporter.
Alloying elements include chromium and molybdenum, and as a result these materials are often informally referred to as chromoly steel common variant stylings include chromemoly, crmo, crmo, crmoly, and similar. Aisi 4140 alloy steel is a chromium, molybdenum, and manganesecontaining low alloy steel. Steel is the common name for a large family of iron alloys. An investigation on the microstructure and mechanical. Aisi 4140 and 4150 is a medium carbon, chromiummolybdenum alloy steel. As it is known, by increasing the diameter size of the rods the rate of. Thus, based on of the conducted an alysis of the properties of mim 4140 alloy after manu facturing of a. Alloy selection guide advanced powder products, inc.
Alloy c4140 steel is an oilhardening steel of relatively high hardenability. Aisi 4140 is a chromiummolybdenum alloy steel, the chromium content. Aisi 4140 is a chromium molybdenum alloy steel specification widely used in the oil and gas industry. There are 31 material properties with values for both materials. Highstrength low alloy steels include many standard and proprietary grades designed to provide specific desirable combinations of properties such as strength, toughness, formability, weldability, and atmospheric corrosion resistance. Alloying elements include carbon, copper, sulfur, manganese, phosphorus, and chromium, and the resulting material is called an alloy steel. High strength low steel of this quality is defined in astm standards a1011 and a1018 alloy steel hslas for hot rolled and astm a1008 for cold rolled and is equivalent to high strength low alloy steel the former high strength low alloy steel. This page displays only the text of a material data sheet. Effect of ion nitriding on fatigue behaviour of aisi 4140.
Heat treatment of 4140 steel is a significant determinant factor as machinability characteristics for manufacturing 2. Low alloy steels 2200, 2700, 4140, 4340, 4605, 8620, 52100 alloy selection guide. Heat treatment quenching, hardening, and other thermal modifications p. Steel square tube is widely used in industrial maintenance, agricultural implements, transportation equipment, truck beds, trailers. China aisi 4140 sae 4140 alloy steel round bar china.
Alloy 4140 is widely used as an alternative to carbon steel where strength and fatigue are a concern. Usually supplied in the hardened and tempered condition at 22 hrc max. It shows good overall combinations of strength, toughness, wear resistance and fatigue strength. The alloy offers a very good balance between strength, toughness and wear resistance. You can also choose from steel plate, plate, and steel coil. Engineering handbook steelmaking basic descriptions of making carbon, alloy, stainless, and tool steel p. 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. Aisi 4140 low alloy steel containing chromium and molybdenum is the most widely used alloy for oil patch applications. These steels are not considered alloy steels, even though their desired properties are achieved by the.
Effect of ion nitriding on fatigue behaviour of aisi 4140 steel article pdf available in materials science and engineering a 27912. The prehardened condition is heat treated to a medium hardness hrc 2832 and is designated as 4140 ht. Machinability machinability of this alloy is good in the annealed condition. Parts can therefore be machined to near final size, leaving a grinding allowance only. Alloy aisisae 4140 4142 uns g 41400g 41442, chromiummolybdenum alloy machinery steel. Specialized metals is a full line metal service center specializing in the rare, exotic, and hard to find materials used in aerospace, marine, military and industrial applications.1290 1508 528 560 444 420 244 671 17 590 1502 1258 1330 520 468 535 625 1033 679 1283 1279 1360 1265 903 1194 275 574 1209 1384 638 644 672 722 712 274 1153 1459 330 127 78 1292 346 1399 222 1455 127 114 438 384