Hard Steel Wire

Hard wire wire rod, referred to as hard wire, refers to high-quality carbon steel wire rod with high carbon content, mainly used for the production of carbon structural steel wire, bead wire, steel wire rope, spring, steel core aluminum stranded wire, prestressed steel wire and steel nails etc.

Hard wires are generally also called BV wires, which are simple in structure and single-core electrical conductors, so they are much harder than RV and BVR cables.

Hard wires are widely used in home decoration. Compared with soft wires, they are low in price, strong in tensile strength, very good in corrosion resistance, and high in utilization. Therefore, they are commonly used in buried walls and ground as key applications.

Hard steel wire is a strong and durable wire material suitable for applications that require frequent movement or prolonged use. It is similar in structure to a wire, but without the flexibility of a wire. The main advantage of hard steel wire is its durability, it is not prone to wear and fatigue, able to withstand high loads and high temperature conditions.

The main uses of hard steel wire are as follows:

(1) Power transmission: Copper core hard steel wires are widely used in power transmission in household and commercial occasions, including in electrical armor, hollow insulation and optoelectronic materials.

(2) Data transmission: Hard steel wires can be used to transmit network data, telephone signals, audio and video signals, the most common of which are network cables, telephone cables, audio cables and video cables.

(3) Vehicle software and power-related applications: Cables and harnesses inside cars, trucks, trains, and airplanes often use hard steel wires.

Different countries and regions may have different standard systems and naming conventions, the following are some examples of possible standards for Hard Steeel Wire:

Chinese standard:

GB/T 4354-2008 High-quality carbon steel hot-rolled wire rod

This standard specifies the order content, size, shape, weight and allowable deviation, technical requirements, test methods, inspection rules, packaging, marks, quality certificates, etc. of high-quality carbon steel hot-rolled wire rods.

This standard applies to the manufacture of high-quality carbon steel hot-rolled wire rods for carbon spring steel wire, prestressed steel wire, high-strength high-quality carbon structural steel wire, coated steel wire, galvanized stranded wire and steel wire rope.

American standard:

ASTM A227/A227M - Standard Specification for Steel Wire for Cold-Drawn Mechanical Springs

ASTM A510/A510M - Standard Specification for General Requirements for Wire Rod and Thick Round Wire

British Standard:

BS EN 10270-1:2011 - Steel wire for mechanical springs - Part 1: Proprietary cold-drawn non-alloy steel wire

BS 5216 - Specification for steel wire for uncoated stress-relief prestressing ground anchors

Japanese standard:

JIS G 3521 - Hard Drawn Steel Wires

JIS G 3521 - Cold drawn hardened steel wire