Uni 34 crmo 4 kb, uni 35 crmo 4, uni 35 crmo 4 f japan. The following is a comparison of 4 grade steel and 4140 grade steel. Aisi 4 is a low alloy steel containing molybdenum and chromium as strengthening agents. Mechanical properties the mechanical properties tensile strength, yield point, etc. And the hot strength of aisi 4 is good by hardening in the oil. An analysis of the mechanical behavior of aisi 4 steel. Aisi 4 steel uns g40, also known as 4 chromoly steel, is a chromemolybdenum series low alloy steel with high strength, toughness and hardenability, usually used in quenched and tempered condition. An analysis of the mechanical behavior of aisi 4 steel after tig and laser welding process. When possible, testing was baselined against conventional quench and tempered material. This information may be useful for machining purposes and as a resource for purchasing 4 and 4140 steel. This type of steel is also commonly referred to as a chromoly steel, or chromemoly steel.
Material may also meet specs astm a331 cold finished or astm a332 hot rolled, astm a304, astm a108, ams 2301, ams 6370 and en10204. Aisi 4 steel is a medium carbon low alloy steel containing 0. Aisi 4 steel also can be called jis scm430 steel, 25crmo41. Aisi 4330v is a nickel chromium molybdenum vanadium alloy steel specification widely used in the oil and gas sectors. Such a steel is identified by inserting the letter l between the second and third numeral of the aisi number. Applications of aisi 1018 mildlow carbon steel it is used in bending, crimping and swaging processes. The following datasheet provides details about aisi. Aisi 1018 mildlow carbon steel after being heated is moistened in oil or water. Various application for this versatile steel formulation include but.
Aisi 4 alloy structural steel properties is a chromium molybdenum alloy steel specification. Aisi 4330v is a modification of the 4330 alloy steel grade, with hardenability and other characteristics improved by the. Typical tensile strength and total elongation of this steel have been reported 30 to be 560 mpa and 21. Alloy 4 is also vacuum degassed to meet the magnetic. Aisi 4 used in oil and gas industry and large machinery structural. It is an exceptional welding steel, being weldable in all commercial methods, and is readily machined in its normalizedtempered condition. Results are displayed up to a maximum of 200 materials per page. When lead is required as an added element to a standard steel, a range of 0. Aisi 4 steel had also been considered, since it is applied in landing gears, small aircrafts engine cradles, and also in the general industry 1, 3 5. The chemical properties of 4 and 4140 steel are similar aside. Grade alloy 4, aisi 4, uns g40 castle metals stocks a wide range of alloy 4 in bar distributed globally from our distribution centers in north america, as well as in the u. It also contains the use of aisi 4142,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
The properties of saeaisi 4 steel include four common variations. Sae aisi 4140 steel properties, material heat treatment. Astm 4140 steel is also commonly referred to as a chromoly steel, or chrome moly steel, containing nominally 0. Chemical compositionthe chemical composition of aisi 4 alloy steel is listed in the following table. The chemical composition of aisi 4 alloy steel is listed in the following table. Datasheet for steel grades carbon steel astm 4 astm 4 standard. We stock this quality of e4 to meet the regulations of api spec. Saeaisi 4 steel is an alloy steel formulated for primary forming into wrought products. Aisi 4 alloy steel aisi 4 steel stockholders and suppliers, delivering to the whole of the uk. With a lower carbon content range aisi 4 provides better. Bar data handbook aisisae chemical compositions and metallurgical data. When customers call us for 4, sometimes they also share how they struggle with price volatility. Aisi sae 4 alloy steel can be made into steel plate, steel sheet, round and flat steel bar, steel pipe and tube, etc.
Related specifications astm a29a29m din en 100833 jis g4053 gb gbt 3077. These steels are more responsive to mechanical and heat treatments than carbon steels. Aisi 4 steel annealing delivery hardenss less than 250hb. Aisi 4 is a low alloy csteel containing chromium and molybdenum as strengthening agents. Such a steel is identified by inserting the letter l between the second and third numerals of the aisi number, e. Datasheet for steel grades carbon steel aisi 4 aisi 4 standard. It has low carbon content, and can be welded easily. Aisi 4 alloy steel is a medium carbon, low alloy steel in astm a29 standard. A very common general purpose grade of medium carbon, crmo steel. It is similar to 4140 steel which has a higher carbon level 0. 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. Follow the links below to view complete property information.
It is supplied as round bar commonly in the hardened and tempered condition with a hardness of 1822 hrc. Aisi 9xxx for other aisi or nonaisi, please use the search function above or check grades. Stocks also conform to nace standard mroi 75 with a maximum hardness of hrc22hb235. Aisi 4 is a chromium molybdenum alloy steel specification. Pdf an analysis of the mechanical behavior of aisi 4. Sae aisi 4 chromoly steel, alloy material properties. It also contains the use of astm 4,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application. The datasheet given below provides more details about aisi 4 alloy steel. The search phrase you entered, 4, is common to 47 materials, by searching on the terms 4 in most common text fields. Alloy 4 is a widely used aircraft steel due to its weldability, ease of fabrication and mild hardenability. Carbon steels carbon steel is steel that has properties made up mostly of the element carbon, and which relies upon carbon content for its structure. Datasheet for steel grades carbon steel aisi 4142 aisi 4142 standard. Aisi 4 steel is a medium carbon low alloy steel from this category with an intermediate strength, where some typical applications are in automotive industries, aircrafts, machine tools.
Aisi 4 alloy steel contains chromium and molybdenum as strengthening agents. For detailed information and chemical analysis please visit the 4 e4 steel page for our aisi 4340 e4340 aircraft quality steel products please visit the 4340 e4340 steel section. Aisi 4 alloy steel also known as chromoly 4 supplied by siddhagiri metals and tubes is a high quality alloy steel grade 4 with uns g40 and wnr 1. The hardenability and weldability of alloy 4 are considered equivalent to 8630 mils6250. Manufacturability tests demonstrated that flash bainite plate is weldable and bendable, and that welded plate can subsequently be flash processed to restore strength. It also contains the use of aisi 4,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application. It has low carbon content, and hence it can be welded easily. Typical applications for 4 low alloy steel include. Alloy steel sae aisi 4 is a medium carbon, low alloy steel containing 0. Bars are heat treated to designation 75k and are charpy vnotch impact tested to classification k.
Alloy 4 aisi 4 is a chromium molybdenum alloy steel. Aisi 4 hexagonal bars, aisi 4 forged bars, aisi 4 square bars, aisi werkstoff nr. Smn420 oil and gas industry steel aisi 4 steel is a alloy structural steel belong to astm a29a29m steel grade standard. Aisi 4330v alloy steel aisi 4330v steel stockholders and suppliers, delivering to the whole of the uk. Aisi 9xxx for other aisi or non aisi, please use the search function above or check grades. The most perfect carbon structure in the world is a diamond, which is 100%.
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