High carbon steel wire is popularly known as black wire. It is a drawn steel wire which is manufactured from quality wire rods with high carbon content. With a wide range of usage, black wire plays a vital role in many industries from automobile and construction to engineering industries.

As high carbon steel, it requires control of its fine pearlite structure to maintain high strength and achieve good drawability. Its typical applications include wire ropes, precision springs, bead wires and regular PC steel wires.

High Carbon Steel Wire (HTS) Rod

Steel Grade
82B

Size
10mm (diameter)

Product Specification

This product specification is subject to change, so please check the latest specifications when ordering or consult with the person in charge.

Chemical Composition

Specification C(%) Si(%) Mn(%) P(%) S(%) Cr(%)
82B ~0.840 ~0.240 ~0.760 ~0.018 ~0.009 ~0.300

Mechanical Properties

Specification Tensile Strength (MPa) Max Force (Kn) Elongation Lo = 100mm (%) Modulus of Electricity (EGPa)
82B 1580 – 1620~ 124.09 – 128.02~ 6 – 7~ 205 – 214~

Manufacturing Processes

Powered by state-of-the-art facility and technology, it operates a totally computerized, end-to-end full automatic production system. This allows us to deliver high-quality and high-performance products fit to the needs of customers.

Billet Conditioning
This process is intended for checking the surface quality of billet and removing any defects. Shot blast is used to remove any scale from the surface. Magnet particle testing and visual inspection are also used to identify any defects which must be removed using a grinder. Ultrasonic testing and dimension and geometry checking are also applied as part of the internal quality assurance process.

Reheating
The temperature within the furnace and the duration of reheating depend on where the product will be used. To avoid decarburization, which can affect the surface quality of the product, a billet is pre-heated sufficiently at a low temperature before being rolled within the reheating furnace. For this purpose, the fuel and air ratio are strictly controlled.

Rolling
The temperature, draft and speed of deformation with which the product is rolled are controlled to meet customer requirements for material features. Further measures to ensure the surface quality include the adjustment of roll roughness and gap, detection of any cracks and dimension correction.

Cooling
Coiling temperature at the laying head, the air flow and movement speed of the blower on the cooling bed and the cooling speed of the insulation cover are controlled to ensure that the product has the features required for each application. High carbon steel Wire rods are subject to fast cooling to achieve the microstructure required for successful drawing while low carbon steel is subject to slow cooling to ensure that the product provides the softness required for the customer to eliminate an annealing process.

Inspection
Samples are taken from the front and rear edges of the product after rolling and cooling for testing to identify any defects in the dimension or surface or material integrity. Packaging and tagging are also inspected according to customer requirements prior to shipping.