Metallurgical Associates

Metallography Madness Precipitation Hardening Stainless Steel A stainless steel containing copper, aluminum, and/or niobium. These elements are finely dispersed throughout this material when it is heated to temperatures ranging from 900 to 1150°F and then held at these temperatures for an extended period of time. This process is known as aging and gives precipitation hardening stainless steels corrosion resistance properties similar to austenitic stainless steels and a degree of strength similar to martensitic stainless steels. Contact MAI today for all your testing needs 1-262-798-8098 or [email protected]? ? #metals #metallurgical #metallurgicalengineering #sem #welding #qualityassurance #engineering #eds #scanningelectronmicroscope #weldanalysis??

Did you know that MAI doesn't just have clients who want failure analyses? We help clients with material selection to ensure they have the right material for their intended purpose in certain environments. We also help clients with routine product testing. Need some metallurgical testing or information, please reach out to MAI today 262-798-8098 or [email protected] #mai #metallurgy #SEM #welding #scanningelectronmicroscopy #EDS #failureanalysis #routineproducttesting If you want to stay up-to-date with us, follow our Page.

Metallography Madness Ferritic Stainless Steel Ferritic stainless steels contain a relatively high percentage of chromium (~10-30%), but unlike most other grades of stainless steel, ferritic types contain little or no nickel. Other alloying elements include silicon and manganese, as well as several others specific to particular variations. Ferritic stainless steels, along with martensitic stainless steels, are identified with a 400 series number which refers to each specific alloy variation such as types 405, 409, 430, etc.?Although they cannot be hardened by heat treating, ferritic stainless steels can be work hardened (i.e., hardened by plastic deformation). Unlike Austenitic stainless steels, Ferritic stainless steels are magnetic.? Contact MAI today for all your testing needs 1-262-798-8098 or [email protected]? ? #metals #metallurgical #metallurgicalengineering #sem #welding #qualityassurance #engineering #eds #scanningelectronmicroscope #weldanalysis??

Metallography Madness Martensitic Stainless Steel A family of stainless steels whose major elemental components are chromium and iron, but unlike many other types of stainless steel, they contain little or no nickel. Also unlike many other types, martensitic stainless steels contain up to 1 percent carbon and, therefore, can be hardened by heat treating. Because of this characteristic, along with their resistance to staining and corrosion,?martensitic stainless steels are used in fine cutlery which demand a hard, sharp cutting edge, along with many other applications requiring these qualities. Contact MAI today for all your testing needs 1-262-798-8098 or [email protected]? ? #metals #metallurgical #metallurgicalengineering #sem #welding #qualityassurance #engineering #eds #scanningelectronmicroscope #weldanalysis??

Metallography Madness Austenitic Stainless Steel A stainless steel containing a relatively large percentage of manganese, chromium, nickel, and nitrogen, as well as other elements in some types. Molybdenum is another common alloying element in some austenitic stainless steels. When present in these relatively large percentages, these alloying elements remain in solution (dissolved) with the iron at ambient temperature rather than precipitating out of solution into small distinct concentrations, as might occur with smaller amounts of these alloying elements present. This property of retaining large amounts of alloying elements in solution at ambient temperature is common to all austenitic stainless steel types. Austenitic stainless steels are usually designated as 300 series stainless steels, and some of the more commonly used types include 301, 302, 304, and 316. They are non-magnetic and normally soft and ductile, even at very cold (cryogenic) temperatures. Although they cannot be hardened by heat treating, austenitic stainless steels can be work hardened (hardened by plastic deformation).?? ? Contact MAI today for all your testing needs 1-262-798-8098 or [email protected]? ? #metals #metallurgical #metallurgicalengineering #sem #welding #qualityassurance #engineering #eds #scanningelectronmicroscope #weldanalysis??

Metallography Madness Stainless Steel An alloy of carbon and iron which also contains at least 10.50% chromium. Stainless steels have better corrosion resistance than either carbon steel or alloy steels. Other elements which may be found in stainless steels include manganese, nickel, silicon, and molybdenum. There are four major categories of stainless steels which are called austenitic, martensitic, ferritic, and precipitation hardening. Contact MAI today for all your testing needs 1-262-798-8098 or [email protected]? ? #metals #metallurgical #metallurgicalengineering #sem #welding #qualityassurance #engineering #eds #scanningelectronmicroscope #weldanalysis??

Metallography Madness Tool Steel A generic name that applies to a number of steels of varying composition. Tool steels, as the name implies, are used to make the tooling which is utilized for the manufacture of other products. The properties which are necessary for this application include wear resistance, hardness, and heat resistance. Contact MAI today for all your testing needs 1-262-798-8098 or [email protected]? ? #metals #metallurgical #metallurgicalengineering #sem #welding #qualityassurance #engineering #eds #scanningelectronmicroscope #weldanalysis??

Metallography Madness Carbon Steel An alloy composed of iron and carbon, although small amounts of other elements such as manganese, silicon, or aluminum may also be present. Depending on the carbon content, carbon steels can be hardened by heat treating, However, hardening is normally effective only to shallow depths or small cross sections. Carbon steel designations are written by numerous engineering groups. One of the most widely used is that established by the Society of Automotive Engineers (SAE). A typical SAE carbon steel designation provides information on composition. For example, an SAE?1020 carbon steel designation indicates a manganese content of less than 1% by the first two digits (1020) and a nominal carbon content of 0.20% by the last two digits (1020). Contact MAI today for all your testing needs 1-262-798-8098 or [email protected]? ? #metals #metallurgical #metallurgicalengineering #sem #welding #qualityassurance #engineering #eds #scanningelectronmicroscope #weldanalysis??

Metallography Madness White Iron A type of cast iron in which all the carbon is tied up in hard carbides and, unlike many other types of iron, no soft, free graphite is present. This composition makes white iron extremely hard and wear resistant, but also very brittle. Because of its extreme hardness, white iron can only be machined by grinding it to the desired shape. In applications requiring a high degree of abrasion resistance, such as earth moving equipment, white iron is often alloyed with chromium and sometimes nickel and molybdenum. Contact MAI today for all your testing needs 1-262-798-8098 or [email protected]? ? #metals #metallurgical #metallurgicalengineering #sem #welding #qualityassurance #engineering #eds #scanningelectronmicroscope #weldanalysis??

A Metallurgical Work of Art!