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Understanding the Different "Grades" of MS Wire and Their Applications

Updated: Mar 20

Understanding the Different "Grades" of MS Wire and Their Applications

Mild Steel Wire, or MS Wire, is a popular choice for a wide range of industrial applications. It is versatile, cost-effective, and widely available. However, not all MS Wires are similar. Different grades of MS Wire have different properties that make them suitable for different applications. In this article, we will discuss the different grades of MS Wire and their applications.

MS Wire is made from low carbon steel, which makes it highly ductile and easy to work with. It is typically classified into three grades: Commercial Grade, Drawing Grade, and High Tensile Strength Grade.

Commercial Grade-

This is the most basic and normally available type of MS Wire. It is used for general purpose applications such as nut bolts, nails, commercial screws, weld mesh, etc. Commercial grade MS Wire is relatively soft and easy to bend and used for applications where quality is not a concern.

Drawing Grade-

This is a higher quality wire than commercial grade MS Wire. It is produced by drawing the wire through a series of dies and rotating drums, which results in a smoother and more uniform wire. Drawing grade MS Wire is stronger and more durable than commercial grade MS Wire, making it suitable for a wider range of applications. It is commonly used in making wire mesh. It is thin in size because of dies and drums and therefore widely used where a thin wire is required.

High Tensile Strength Grade-

This is the strongest and most durable type of MS Wire. It is made by adding alloying elements such as carbon, manganese, silicon, and Boron to the steel. High tensile strength grade MS wire has a much higher yield strength than commercial grade and drawing grade MS Wire, making it ideal for use in heavy-duty applications. It is commonly used in wire ropes, automotive screws, construction, and other high-stress applications where high strength and durability are required. It contains the grades such as 10B21, 15B25, and high tensile steel bolts, screws, and fasteners having grades from 8.8 to 12.9.

Based on Coating:

Bare MS wire-

This is uncoated MS Wire and is typically used for applications where corrosion is not a concern. This is exposed to external weather conditions such as rain, humidity, air, etc. It has a high chance of corrosion.

Galvanized MS wire-

The wire is coated with a layer of zinc through the Galvanization process, which provides excellent corrosion resistance. This wire is known as GI Wire. Galvanized MS wire is commonly used for fencing, wire mesh, and other outdoor applications.

PVC-coated MS wire-

The wire is coated with a layer of PVC, which provides additional protection against corrosion and abrasion. PVC-coated MS wire is commonly used for applications where the wire will be exposed to moisture or chemicals.

Based on Carbon Composition:

Low Carbon Steel-

As the name suggests, it contains very little amount of carbon and manganese. It has 0.05% to 0.25% carbon and up to 0.4% manganese. The different types of grades present in Low carbon steel e.g. SAE 1006 (0.06% carbon), 1008 (0.08% carbon), 1010 (0.10% carbon), 1018 (0.18% carbon), and 1022 (0.22% carbon). Its properties are ductile, malleable, easily joined and welded, poor corrosion resistance, etc.

Medium Carbon Steel-

In this type of MS wire, 0.29%-0.54% carbon and 0.60%-1.65% manganese are present. It is ductile and strong as compared to Low Carbon steel. SAE 1040 grade of MS Wire comes under the medium carbon steel category. It is strong, hard, less ductile, less malleable, and has good corrosion resistance.

High Carbon Steel-

This type of MS Wire contains 0.55%-0.95% carbon and 0.30%-0.90% manganese. It is used for making springs and wires. It includes the grades C60, C65, C70, C75, C85, HC-14, En 42 J, C-98, C-100, C-124, HC21, etc. High Carbon Steel wire is very strong, very hard, has poor ductility and malleability, and has better corrosion resistance than others.

In conclusion, understanding the different grades of MS Wire and their applications is important when choosing the right wire for your project. We hope that this article will be helpful to you. You can check out our other blogs also by clicking on the link -

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