W1, 01, a2 square w1 precision ground flat 01 metric drill rod 01 a2 plate alloy steels 4140 h. It is supplied as round bar commonly in the hardened and tempered condition with a hardness of 1822 hrc. Machining 4140 chrome moly hi is 4140 chrome moly steel hard to machine compared to stainless steel. If the particular item you need cannot be supplied from stock immediately, we will. Information regarding differences of steel grades and their properties came from. The following table shows the chemical composition of aisi 4140. Order online or call 8669386061 to speak with a representative. Alloy steel aisi 4140 ph aisi 4140 ph is a quenched and tempered chromemoly steel, typically supplied at 262321 brinell. Aisi 4140 is an alloy steel that is supplied in either annealed or prehardened condition. Aisi or sae 4 grade is a lowalloy steel containing chromium and molybdenum. View profile view forum posts diamond join date jan 2003 location canada. It is renown for its wear resistance and where high strength properties is required. G page 4 4140424550 uns g41400, g41420, g41450, g41500 41l4042, 41l50 leaded chromiummolybdenum steel bars and plates color marking 41404245. Chrome moly steel features specifications applications.
Aisi 4 steel uns g40, also known as 4 chromoly steel, is a chrome molybdenum series low alloy steel with high strength, toughness and hardenability, usually used in quenched and tempered condition. Aisi 4140 chromemolybdenum steel can be oil hardened to a relatively high level of hardness. Brown mcfarlane supplies chrome moly plates to asme sa387 and astm a387 both from stock and, where required by the customer, cut to size and shape. The names for this category are nearly as numerous as their uses. The 4140 alloy steel grade contains chromium and molybdenum for high strength and has good machinability. It is generally supplied in the hardened and tempered condition, especially in the oil and gas sector to achieve. For more detailed information download the tech bulletin pdf below. The molybdenum additions prevent the steel from being.
The cm alloys and the ss alloys have many of the same or simular characteristics. Aisi sae 4 alloy steel can be made into steel plate, steel sheet, round and flat steel bar, steel pipe and tube, etc. The alloy steel is composed of chromium, molybdenum, manganese containing low alloy steel. Aisi 4140 also known as en19 comes treated in the annealed as rolled or even t condition. Atlas 8620h is a low nickel chromium molybdenum caseghardening steel of. Aisi 4 alloy steel aisi 4 steel stockholders and suppliers, delivering to the whole of the uk. This is a great replacement for scout rifles, a scouttype gun build, or mk14 navy, m39emrusmc weapon. Aisi 4140 is a chromium molybdenum alloy steel specification widely used in the oil and gas industry. A wide variety of alloy steel 4140 steel specs options are available to you, such as structure pipe, fluid pipe.
In the search for the best steels to make barrels barrel makers have had many choices. The prehardened condition is heat treated to a medium hardness hrc 2832 and is designated as 4140 ht. The item you need may have been added to stock after this book went to press. The chromium content provides good hardness penetration, and the molybdenum content ensures uniform hardness and high strength. The following datasheet gives an overview of aisi 4140 alloy steel.
Aisi 4 is a chromium molybdenum alloy steel specification. 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. The barrel maker must choose the type of steel the barrels are made from. Chrome moly vs stainless steel the optics talk forums. Aisi 4140 is a chromiummolybdenum alloy steel, the chromium content provides good hardness penetration, and the molybdenum content ensures uniform. Welding procedure specification welding procedure specification 4140 0 smaw smaw912004 912004 kelly bingham 3302004 1004140 na na aisi4140 0 aisi4140 0 0 0 0 0. The desirable properties of the aisi 4140 include superior toughness, good. Crmo steel pipes, 4140 chrome moly pipes, ferritic alloy steel chrome moly seamless pipes, astm a335 chrome moly pipe dealers. The important characteristics of the steel are its machinability, longevity, and strength. News articles directory equipment books videos events metals store journals software. It is stocked in asdrawn, stressrelieved, normalized, or quenched and tempered condition, is not subject to temperembrittlement, and responds to.
It has high fatigue strength, abrasion and impact resistance, toughness, and torsional strength. Aisi4140 1% cr mo steel related specifications sae 4140 uns g41400 aisi 4140 is a 1% crmo through hardening steel, used particularly where strength and impact toughness is required. Can i use hss steel tool bits on that or do i need carbide. One of the most versatile steels, 4140 is characterized by its. Chromoly steel is a type of low alloy steel that gets its name from a combination of the words chromium and molybdenum two of the major alloying elements.
Stainless steel whether 410, 415, 416, 177, and cm in 4,4140, and others have their differences. Aisiastm 52100 bearing steel is a high carbon, chromium containing low alloy steel that is through hardening and noted in particular for use as bearings. Product information 4 chrome moly performance metals. 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. Most often this would be either a chromemoly steel such as 4140 or a stainless steel such as type 416. In essence, it may a good for impact resistance but to be quite honest, i havent ever heard of a knife made from the stuff.
This material can be heat treated for higher hardness. Similar to alloy grade aisi 4 chrome moly alloy steel but with a slightly higher carbon. Sa387 and a387 are described as a standard specification for pressure vessel plates, alloy steel, chromiummolybdenum. Quality management system in accordance with iso 9001. The higher carbon content of aisi 4140 gives greater strength and heat. Chrome rod nitro bar drill rod tool steel drill rod.
Sae aisi 4140 steel properties, material heat treatment. Annealed bars ends painted black and red heat treated bars ends painted brown and gold. Chrome moly pipes, alloy steel chrome moly pipes stockist. This steel is used in axle shafts, crankshafts and other automobile applications. These alloys characteristics make them desirable in many areas of construction and manufacturing. Chrome alloy steels, such as 4, 4140, and 4340 are so named because. Chrome moly steel applications due to the high temperature and corrosion resistance exhibited by chrome moly steel, it is desirable in industries such as oil and gas, construction, and nuclear. A wide variety of chrome moly steel options are available to you, such as cold drawn, hot rolled, and cold rolled. Aisi 4140 alloy steel aisi 4140 steel stockholders and suppliers, delivering to the whole of the uk.
Chrome bar 4140 ht is used when high yield strength for medium to high stress. Sae aisi 4 chromoly steel, alloy material properties. As a leading trader and manufacturer, stolt alloys fze offers a wide range of chrome moly seamless pipes, which is the standard for seamless ferritic alloysteel pipe produced in nominal or minimum wall thickness for. Some of the names are chrome moly, croalloy, chromalloy, and crmo. Chromiummolybdenum alloys often are grouped in a single category. Chrome molybdenum 4140 bars rods, and forging stock for aircraft applicationscancelled jan 2002 amss5626a this specification covers chrome molybdenum 4140 steel bars, rods, and forging stock of aircraft quality. Chromium molybdenumits uses and fabrication requirements. Aisi 4140 alloy steel is a chromium, molybdenum, and manganesecontaining low alloy steel. We can offer aisi 4140 in bar form from stock, rolled and bright drawn.
Most of the chromemoly steels i see are in the 8501230 range. Engineers have been increasingly opting to use chrome moly steel in the construction of buildings as the resistance against extremely high temperatures. Chromoly steel is often used when more strength is required than that of mild carbon steel, though it often comes at an increase in cost. Highcarbon chromium bearing steel, engineering steel and some types of. Obviously the spring has to be strong enough in uts and yield strength, but it is a spring and you need to check fatigue point. The chromium content provides good hardness penetration, and the molybdenum imparts uniformity of hardness and high strength. Similar to grade aisi 4 but with a slightly higher carbon content.
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. The 4140 alloy steel round rod has an unpolished mill surface, meets american society for testing and materials international astm a331 specifications, and has a standard tolerance. 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, cromoly, crmo, crmo, crmoly, and similar. Alloying elements include chromium and molybdenum, and as a result these. Through variations in the method of heat treating 4140, an exceptionally wide range of properties can be attained. Our family machine shop used quite a bit of this material to avoid heat treating parts. This product manual is to be used for reference only. They have an excellent strength to weight ratio and are considerably. The higher carbon content of aisi 4140 gives greater strength and heat treatment capabilities in comparison to aisi 4, however it does have inferior weldability. Made from 4140 chromemoly and stress relived, with milstd 171 magnesium phosphate finish. With a lower carbon content range aisi 4 provides better. Aisi 4140 steel bar, steel plate, flats supplier, stockist and exporter.
30 105 800 1541 1457 1144 811 1225 1144 1123 131 1554 1549 1238 687 791 1195 683 943 1081 100 1245 1395 902 223 668 247 1598 639 642 1402 263 1530 936 337 604 65 214 241 40 735 783 705 388 1241