8740 steel

8740 Alloy bar stock is a nickel-chromium-molybdenum low-alloy steel that has incredibly good hardenability, strength, and toughness properties.​

8740 alloy steel bar stock

8740 Alloy bar stock is a nickel-chromium-molybdenum low-alloy steel that has incredibly good hardenability, strength, and toughness properties. 

8740 alloy round bar stock finds its uses in a number of applications where strength, toughness, and wear resistance are taken into high consideration as it plays vital importance when forging this kind of metal. This alloy is particularly used as high-forged fasteners. 

The chemical composition of 8740 alloy bar stock consists of Carbon 0.38 – 0.43. Manganese 0.75 – 1.00, Phosphorus 0.035 max, Sulfur 0.040 max, Silicon 0.20 – 0.35, Nickel 0.40 – 0.070, Chromium 0.80 – 1.10, and Molybdenum 0.15 – 0.25. Based on its chemical analysis alone it is fair to see why this metal is forged at a starting temperature of around 2200F (1205C) and can be forged down to approximately 1700F (925C).

Steel Purchaser

Contact the best 8740 steel suppliers in the industry

Advance Grinding has the right kind of steel that you need to help you keep up with your business or latest venture. Our 8740 alloy round bar stock is the perfect alloy steel metal that’s best for forging things that carbon steel cannot provide. If you want to acquire the best metal forged in the industry, then you’ll be happy to know that Advance Grinding can provide you with just that. Our Alloys are influenced by both the thermal treatment and the alloying elements that are present during their production. We understand the value of supplying our clients with quality metals, which is precisely why you should trust us, to supply you with top-tier, high-quality metals. Contact us today so that you can get a quote on the alloy that you need. We’ll make sure that you’re equipped to take on any project you have to face by providing you with hardy material that you can rely on.

Since, 8740 alloy steel is an excellent choice for many applications as it has high strength, toughness, and weldability it is always in demand in many 8740 steel suppliers. The best place to find 8740 steel suppliers is online. But you do not need to fret in finging 8740 steel suppliers, when you can always trust Advance Grinding Services.


As such, it is now understandable why this type of alloy steel is sought after getting a quick review of its components.

Consequently, its high machinability is highlighted as it is commonly combined with sulfur to further improve its machinability and make carburizing processes more effective.

With its excellent machinability, this even elevated this alloy steel’s prominence among industries.

Fortunately, Advance Grinding Services never runs out of 4140 alloy steel bars and can very much supply your needs especially if you are operating in the Illinois area!


Tensile Strength95000 psi
Yield Strength60200 psi
Hardness (Brinell)197
Hardness (Knoop)219
Hardness (Rockwell)92
Hardness (Vickers)207


With excellent toughness, high fatigue strength, and outstanding machinability,8740 steel has indeed become a staple for most industries in the Midwest.

8740 alloy steel is a high-strength, low-alloy steel that is used in various applications such as gas turbines, gas compressors, and high-pressure boilers. 8740 steel is one of the most popular alloy steels for heavy structural applications because it offers good strength and toughness at elevated temperatures, weldability, and excellent corrosion resistance to many corrosive environments such as seawater or sewage sludge.

8740 steel is also known for its high corrosion resistance properties, making it a good choice for marine environments and other highly corrosive conditions. The 8740 steel is a type of alloy containing nickel, chromium, and molybdenum. It is also one of the world’s most widely used types of steel. It can be used for a wide range of applications such as: pressure vessels, boilers, storage tanks, heat exchangers, and piping.

8740 alloy steel is high-strength, low-alloy steel. It has excellent toughness and weldability, and is used in producing gears, sprockets, chains, shafts, and other products. 8740 alloy steel is high-strength, low-alloy steel. Also, it is a high-strength, high-hardness, low-alloy steel. It is a common grade of steel used in the production of springs. It has excellent mechanical properties and good corrosion resistance.

The alloy content of this type of metal is typically 0.25% to 1%. In the steel industry, 8740 steel is a type of alloy composed of nickel, chromium, and molybdenum. It is a tough alloy that can be applied in high-strength applications. It has a carbon content of 0.35% to 0.45%, making it resistant to corrosion and pitting.

Whatever industry you are from, rest assured that Advance Grinding Services can provide you with a high-quality 8740 alloy round bar stock for all your specific industry applications.

Give us a call or simply request a quote from our website and acquire a  high-quality 8740 alloy round bar stock today!