AISI 4140 steel is Chrome-Moly High Tensile Steel which has a minimum of .8%Cr,.15%Mo as strengthening alloy elements.The chromium content provides good hardness penetration, as well as the molybdenum content ensures uniform hardness and high strength. AISI 4140 steel may be oil hardened to your relatively top level of hardness with a tensile strength of 850 – 42CrMo4 offers a really good balance of strength,toughness and wear-resistance.Compared with AISI 4130,it possesses a slightly higher carbon content which provides greater strength and heat treatment capabilities , however it is poor in weldability. Pre hardened and tempered 4140 can be further surface hardened by flame or induction hardening(may be surface hardened to your typical value 58HRC)and also by nitriding( Surface hardness achievable is 600 to 650HV).
AISI 4140 alloy steel has good machinability,operations including turning, hobbing, drilling, sawing, broaching, tapping and milling can be easily performed using the recommendations provided by the machine’s manufacturer for ideal tool type-feeds and speeds. AISI 4140 is commonly used for a variety of applications within the oil and gas ,aerospace,automotive, agricultural and defense industries.
Worldwide fabricators who provide the oil, gas and petrochemical industry, need the highest specification steels to be used within the manufacture of weldable steel pressure vessels and industrial boilers. 16Mo3, which can be supplied beneath the EN 10028 euro norm specification, is among these steels.
16Mo3 is actually a chrome molybdenum based steel that has excellent heat resistance and corrosion resistant characteristics. Because of this alone, the steel is a well known within the creation of pressurised vessels and boilers. The content offers good welding properties when using conventional welding methods and as a result of materials excellent heat resistance, 16Mo3 is also found in pipework for transporting hot liquids.
Added chromium within the steel raises the corrosion resistance whilst the greater molybdenum content promotes the rise in potential to deal with elevated temperatures. 16Mo3 even offers good cold and warm forming properties and it is normally delivered in ‘as rolled’ condition. Consideration should be made concerning the level of tensile strength required before procuring DIN 1.6565 – whilst the content offers good overall tensile strength, this strength decreases because the temperature rises.
Equivalents for this particular steel grade are available under the ASTM and ASME steel specifications for chrome moly (A387 and SA387 respectively). 16Mo3 can also be extensively employed by the inshore and offshore industry. Material with this type normally includes mill certification and stamping and additional tests are normally supplied on the customers request. This can be done by vjrryg third party testing house or independently inspected by the customer.
The petrochemical industry sets high demands for carbon steel grades found in their production facilities that is unsurprising considering that the working environment is potentially such a hazardous one. The industry dictates quality standards for the usage of steel during these production plants with all the emphasis placed heavily on operational safety. Any material supplied must conform fully with all the test criteria specified and such criteria varies dependent on the particular kind of steel sought. Chrome Molybdenum is certainly one particular steel type which is popular within the industry.
About Chrome Molybdenum Steel – Also referred to as AISI 1045, this specific type of steel is used for a number of purposes like the fabrication of industrial boilers and pressure vessels. Chrome Moly has two key advantages. High temperature tensile strength – chrome moly is an ideal material to use in elevated temperature environments. Corrosion & Oxidation Resistance- chrome moly offers excellent effectiveness against the consequences of corrosion and oxidation.
The steel itself is produced at the steel mill with higher degrees of chromium and molybdenum – the chromium offers the corrosion and oxidation resistance whilst the molybdenum offers heat resistance. It really is therefore clear to find out why this type of steel is popular inside the oil and gas industry where high working temperature in pressurized conditions are normal place.