powered by CADENAS

Social Share

41xx steel (9894 views - Material Database)

41xx steel is a family of SAE steel grades, as specified by the Society of Automotive Engineers (SAE). Alloying elements include chromium and molybdenum, and as a result these materials are often informally referred to as chromoly steel (common variant stylings include chrome-moly, cro-moly, CrMo, CRMO, CR-MOLY, and similar). They have an excellent strength to weight ratio and are considerably stronger and harder than standard 1020 steel, but are not easily welded (requiring thermal treatment both before after welding to avoid cold cracking). While these grades of steel do contain chromium, it is not in great enough quantities to provide the corrosion resistance found in stainless steel. Examples of applications for 4130, 4140 and 4145 include structural tubing, bicycle frames, tubes for transportation of pressurized gases, firearm parts, clutch and flywheel components, and roll cages. 4150 stands out as being one of the steels accepted for use in M16 rifle and M4 carbine barrels by the United States military. These steels are also used in aircraft parts and therefore 41xx grade structural tubing is sometimes referred to as "aircraft tubing".
Go to Article

41xx steel

41xx steel

41xx steel is a family of SAE steel grades, as specified by the Society of Automotive Engineers (SAE). Alloying elements include chromium and molybdenum, and as a result these materials are often informally referred to as chromoly steel (common variant stylings include chrome-moly, cro-moly, CrMo, CRMO, CR-MOLY, and similar). They have an excellent strength to weight ratio and are considerably stronger and harder than standard 1020 steel, but are not easily welded (requiring thermal treatment both before after welding to avoid cold cracking).[1]

While these grades of steel do contain chromium, it is not in great enough quantities to provide the corrosion resistance found in stainless steel.

Examples of applications for 4130, 4140 and 4145 include structural tubing, bicycle frames, tubes for transportation of pressurized gases, firearm parts, clutch and flywheel components, and roll cages. 4150 stands out as being one of the steels accepted for use in M16 rifle and M4 carbine barrels by the United States military. These steels are also used in aircraft parts and therefore 41xx grade structural tubing is sometimes referred to as "aircraft tubing".

Properties

Alloy composition (by weight)[2]
SAE grade  % Cr  % Mo  % C *  % Mn  % P (max)  % S (max)  % Si
4118 0.40–0.60 0.08–0.15 0.18–0.23 0.70–0.90 0.035 0.040 0.15–0.35
4120 0.40–0.60 0.13–0.20 0.18–0.23 0.90–1.20 0.035 0.040 0.15–0.35
4121 0.45–0.65 0.20–0.30 0.18–0.23 0.75–1.00 0.035 0.040 0.15–0.35
4130 0.80–1.10 0.15–0.25 0.28–0.33 0.40–0.60 0.035 0.040 0.15–0.35
4135 0.80–1.10 0.15–0.25 0.33–0.38 0.70–0.90 0.035 0.040 0.15–0.35
4137 0.80–1.10 0.15–0.25 0.35–0.40 0.70–0.90 0.035 0.040 0.15–0.35
4140 0.80–1.10 0.15–0.25 0.38–0.43 0.75–1.00 0.035 0.040 0.15–0.35
4142 0.80–1.10 0.15–0.25 0.40–0.45 0.75–1.00 0.035 0.040 0.15–0.35
4145 0.80–1.10 0.15–0.25 0.43–0.48 0.75–1.00 0.035 0.040 0.15–0.35
4147 0.80–1.10 0.15–0.25 0.45–0.50 0.75–1.00 0.035 0.040 0.15–0.35
4150 0.80–1.10 0.15–0.25 0.48–0.53 0.75–1.00 0.035 0.040 0.15–0.35
4161 0.70–0.90 0.25–0.35 0.56–0.64 0.75–1.00 0.035 0.040 0.15–0.35
* The carbon composition of the alloy is denoted by the last two digits of the SAE specification number, in hundredths of a percent
Mechanical properties
Material Condition Tensile strength [psi (MPa)] Yield strength [psi (MPa)] Elongation in 2" [%] Hardness (Rockwell)
4130 Cold drawn—normalized[3] 85,000–110,000 psi (590–760 MPa) 70,000–85,000 psi (480–590 MPa) 20–30 B 90–96
4142 Hot rolledannealed[3] 90,000–100,000 psi (620–690 MPa) 60,000–70,000 psi (410–480 MPa) 20–30 B 90–95
Cold drawn—annealed[3] 105,000–120,000 psi (720–830 MPa) 85,000–95,000 psi (590–660 MPa) 15–25 B 96–100
4150 Hot rolled—annealed[3] 90,000–110,000 psi (620–760 MPa) 65,000–75,000 psi (450–520 MPa) 20–30 B 90–96

Other characteristics

One of the characteristics of this class of steel is the ability to be case hardened by carburization of the surface. The core of the material retains its bulk properties, while the outer surface is significantly hardened to reduce wear and tear. This makes this grade of steel an excellent material for uses such as gears, piston pins, and crankshafts.[2]

  1. ^ Metals, Online. "Online Metal Store | Small Quantity Metal Orders | Metal Cutting, Sales & Shipping | Buy Steel, Aluminum, Copper, Brass, Stainless | Metal Product Guides at OnlineMetals.com". www.onlinemetals.com. Retrieved 2016-06-16. 
  2. ^ a b Central Steel & Wire Company Catalog (2006–2008 ed.), p. 246 . Note: "For bar products; plate, sheet and tubing may be slightly different."
  3. ^ a b c d Central Steel & Wire Company Catalog (2006–2008 ed.), p. 260 .

AlGaАльникоАлюминийАлюминиевые сплавыАлюминиевая бронзаAluminium-lithium alloyArsenical bronzeArsenical copperBell metalБериллийBeryllium copperБиллонBirmabrightBismanolВисмутЛатуньБронзаБулат (металл)Calamine brassЧугунChinese silverХромChromium hydrideКобальтЦветное золотоКонстантанМедьГидрид меди(I)Copper–tungstenCorinthian bronzeCrown goldCrucible steelCunifeМедно-никелевый сплавСплавы для тарелокСплав ДевардаДюралюминийDutch metalЭлектрумЭлинварПлатинитФерросплавыФерроцерийФеррохромФерромарганецФерромолибденФерросилицийФерротитанFerrouraniumField's metalFlorentine bronzeGalfenolГалинстанГаллийGilding metalСтеклоGlucydurЗолотоGuanín (bronze)GunmetalHepatizonHiduminiumHydronaliumИндийИнварЖелезоIron–hydrogen alloyItalmaФехральКоварСвинецMagnaliumМагнийМанганинMegalliumМельхиор (сплав)MercuryMolybdochalkosMuntz metalНихромНикельНейзильберСеверное золотоOrmoluPhosphor bronzeПередельный чугунPinchbeck (alloy)ПластмассыPlexiglasПлутонийКалийRhoditeРодийСплав РозеСамарийСкандийСякудоСереброНатрийSpeculum metalSpiegeleisenStaballoyНержавеющая стальСтальСтеллитКонструкционная стальОловоТитан (элемент)ТомпакТумбагаУран (элемент)VitalliumСплав ВудаY alloyЦинкЦирконийДамасская стальСталь ГадфильдаБыстрорежущая стальMushet steelMaraging steelHigh-strength low-alloy steelReynolds 531Электротехническая стальПружинная стальAL-6XNCelestriumAlloy 20Нержавеющая сталь AISI 316Martensitic stainless steelSanicro 28Surgical stainless steelZeron 100Серебрянка (сталь)Инструментальная стальСталь кортеновскаяWootz steelПрипойTerneType metalЭлектрон (сплав)АмальгамаMagnox (alloy)АлюмельBrightrayХромельHaynes InternationalИнконельМонель-металлNicrosilNisilНитинолМю-металлПермаллойСупермаллойNickel hydridePlutonium–gallium alloyНатрий-калиевый сплавМишметаллЛитийTerfenol-DPseudo palladiumScandium hydrideSamarium–cobalt magnetArgentium sterling silverBritannia silverDoré bullionGoloidPlatinum sterlingShibuichiСтерлинг (сплав)Tibetan silverTitanium Beta CTitanium alloyГидрид титана(II)Gum metalTitanium goldНитрид титанаБаббитБританийПьютерQueen's metalWhite metalUranium hydrideZAMAKZirconium hydrideВодородГелийБор (элемент)АзотКислородФторМетанАнтресольАтомМеталлургический комбинат

This article uses material from the Wikipedia article "", which is released under the Creative Commons Attribution-Share-Alike License 3.0. There is a list of all authors in Wikipedia

Material Database

database,rohs,reach,compliancy,directory,listing,information,substance,material,restrictions,data sheet,specification