WHAT IS CHROMOLYWhat Is Chromoly Steel?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. Chromoly steel is often used when more strength is required than that of mild carbon steel, though it often comes at...

What is Alloy Steel? An alloy steel is a type of steel alloyed with more than one element (alloying elements) and these are added to increase strength, hardness, wear resistance and toughness. The added alloying elements that are added to the base iron and carbon structure typically total no more than 5% of the alloy steel’s material composition. Alloy Steel AdvantagesWhether your project requires...

The Uses of DOM and 4130 When beginning a project, it’s important to select the right type of metal tubing. If you are looking for a flexible metal, you may decide to use DOM tubing. But if you need strength, 4130-grade alloy may be the more reliable option. By understanding the difference between DOM tubing and 4130-grade alloy, you will be able to make the right decision for you. What is DOM?Dra...

Metal materials are usually classified into ferrous metals, non-ferrous metals, and specialty metallic materials.(1) Ferrous metals, also known as steel materials, include industrial pure iron containing more than 90% of iron, 2% to 4% of carbon containing carbon, carbon steel containing less than 2% carbon, and structural steel and stainless steel for various purposes. Heat resistant steel, high ...

(1) Roughing of hardened steel: In the production process of gears and ring gears that have undergone heat treatment during turning, some gears, ring gears are quenched or carburized and quenched. The hardness is generally above HRC55, and some hardness reaches HRC60 or even HRC65. Some gears have serious deformation after heat treatment, especially the large ring gear and large gear after carburi...

(1) High hardness, high strength, and almost no plasticity: This is the main cutting characteristic of hardened steel. When the hardness of hardened steel reaches HRC50-60, its strength can reach σb=2100～2600MPa. According to the grading rules of the processing property of processed materials, the hardness and strength of hardened steel are all grade 9a, and it belongs to the most difficult cuttin...

Chromium-Molybdenum high tensile steel has good ductility, shock resistance and wear resistance.AISI 4145, AISI 4145H and AISI 4145MOD are the main type of 4145 Cr-Mo steel. AISI 4145 is a chromium molybdenum low alloy steel grade widely used in the oil and gas sectors but with a higher carbon content compared with AISI 4140. Larger diameters AISI 4145 bars are often supplied with higher Molybdenu...

8620 gear steel is a low carbon nickel chromium molybdenum alloy steel. And it is a low cost steel with good carburized properties. The nickel content contributes to case toughness at high strength with above average core toughness. The chromium and molybdenum support the proper formation of carbides resulting in good surface hardness and wear. It is used to make a wide range of gears, crankshafts...