What is the S7 Round Bar? Properties, Uses and Composition

 

Within the world of manufacturing, a lot relies on versatile, robust materials, and dependable tools. And the backbone of innumerable machine parts and tools, that manufacturers rely upon, are the round bars.

S7 Round Bar: What Is it?

The S7 round bar is essentially a perfectly round solid metal rod. However, unlike the average metal rod, the S7 bar belongs to a category of steel known as tool steels which are known for their remarkable strength, ability to withstand wear and tear, and for their toughness. Those are the qualities that make S7 steel perfect for the demanding world of manufacturing.

What Makes S7 So Special?

In order to become the fan favorite within the manufacturing sphere, a material needs to possess a perfect combination of properties that are rarely found elsewhere.

S7 steel has high strength and toughness – These enable the tool steel to withstand considerable forces as well as impacts without deforming, chipping, or breaking. It can handle the really tough jobs with aplomb.

S7 steel can resist wear – When tools and parts are in constant contact with other parts or materials, they tend to wear out rather quickly.

S7 round bar is air-hardening – Most tool steels need to be hardened through a process called quenching which can be somewhat complicated.

S7 is known for its machinability – S7 steel S7 steel can be readily machined and shaped into different forms using cutting tools without dulling those tools quickly.

S7 Steel: What Is It Made Of?

Though there are other tool steels that may share some of the same elements as the S7, the exact same percentages and any additional elements would be most likely different.

Contains Carbon (C) – The strength and hardness of S7 steel comes from its carbon content of around 0.45% to 0.55% making it within the category of medium carbon steel.

Contains Chromium (Cr) – Chromium gives the tool steel its extra layer of protection against corrosion and rust which helps the round bar maintain its integrity for longer.

Contains Molybdenum (Mo) – S7 is able to avoid softening at high temperatures because of its molybdenum content enabling it to perform its job well even when it gets really hot during a manufacturing process.

Contains Vanadium (V) – Friction during a manufacturing process can cause a lot of wear and tear. The vanadium within S7 steel allows it to have enhanced wear resistance to maintain its integrity even in the face of hot temperatures and high amounts of friction.

Contains Silicon (Si) – Silicon helps the S7’s machinability making it easy to cut and shape without warping, cracking, or breaking.

Where Is S7 Used?

Due to its remarkable combination of properties, S7 steel finds application in an extensive range of industries.

Extrusion & Die Casting -- The strength and wear resistance of the S7 make it the ideal material for creating the dies and molds used in shaping plastics and metals.

Forging – S7 is used to create equipment and tools that can handle the forces in forging.

Shearing & Punching – S7 tool steel is well suited for making punches and shears used for cutting and shaping metal.

Wear Plates & Bushings – The ability of S7 steel S7 steel to resist wear makes it a good choice.

Cold Work Tools – S7 round bars are also used for cold working tools like taps, forming dies, and drills.

The S7 round bar is a blend of unique elements that grant it exceptional properties that make it a versatile and reliable partner within the world of manufacturing.