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Cold Drawn Steel Bar
Cold Drawn Steel Bar
Cold Drawn Steel Bar

Cold Drawn Steel Bar

Cold drawn steel bar is a kind of steel bar product processed by cold drawing process. In the cold drawing process, the low carbon steel bar is placed on the cold drawing machine, and through the way of strong drawing to make it through the mold hole smaller than the diameter of the original steel bar 0.5 to 1.0 mm, so that the steel bar is drawn into a smaller diameter steel wire.
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Introduction
Specification
Feature
Process
Related Products
Introduction
Product Introduction

Cold drawn steel bar is a kind of steel bar product processed by cold drawing process. In the cold drawing process, the low carbon steel bar is placed on the cold drawing machine, and through the way of strong drawing to make it through the mold hole smaller than the diameter of the original steel bar 0.5 to 1.0 mm, so that the steel bar is drawn into a smaller diameter steel wire.
In this process, the steel bar will produce transverse compression and longitudinal tensile, and its internal lattice will slip, so that the tensile strength is significantly increased, usually by 50% to 90%, but the plasticity will be reduced, and the hardness will be increased.

Specification
Product Specification

Supply Range:
1. Cold Drawn Round Bar Ø (mm):
Hot Rolled from Ø12~Ø50;
Hot Forged: EAF-Ø50~Ø250; ESR-Ø50~Ø650;
2. Cold Drawn Flat Bar (mm):
EAF Thickness from 20~200, width from 80~610;
ESR: Thickness from 20~450, width from 610 max;
Grades & Specifications:
IBC Metal Group provides a wide variety of grades in cold drawn bars as small as 12mm.
Cold finished bars are commonly classified in the following ASTM specifications for AISI, SAE, JIS, DIN and other commercially available grades:
1.AISI
2.SAE
3.JIS
4.DIN

Feature
Advantageous Features
High strength and high hardness
The strength of cold drawn round bar is increased by 10% to 20% compared with hot-rolled steel bars, and has high tensile strength and fatigue resistance. This characteristic makes it better able to withstand external extrusion and tensile forces to meet the demand for high-strength steel bars in engineering projects, thereby improving the safety of construction projects. At the same time, its hardness and rigidity are also higher, enhancing durability.
High precision
It uses advanced machinery and equipment and processes in the production process, effectively controlling the size and shape accuracy of the steel, making the product surface smooth, not easy to produce burrs and cracks, very suitable for the manufacture of high-precision parts.
Excellent toughness
The surface and internal organizational structure of this steel bar is more dense, avoiding the hardening phenomenon that may be caused by thermal tensile, so cold drawn steel bar has better toughness and higher impact strength.
Corrosion resistance and no crack
After special treatment, its surface is smooth and smooth, not easy to produce rust and oxidation, and has good corrosion resistance, thus extending the service life of building materials. At the same time, because there is no need for heat treatment in the production process, the grain boundary structure of the steel is more uniform, and the generation of cracks is effectively avoided.
Good machining performance
It has good machinability and easy machinability, convenient for a variety of machining, stamping, bending and cutting operations, so that it has been widely used in the manufacture of mechanical parts, automotive parts, pipes and bearings and other fields.
Process
Product Process
What is cold drawn steel?
01
Carry out the necessary inspection of the raw materials to ensure that the steel bar meets the requirements of cold drawing.
02
The steel bar head should be rolled fine, so that its diameter is slightly less than the drawing die hole, in order to smoothly pass through the die hole.
03
The steel bar is lubricated by a lubricant box to reduce friction and damage during wire drawing.
04
Start the cold drawing machine, control the appropriate pulling force and pulling speed, so that the steel bar through the wire drawing die hole for cold drawing.
05
Relax the steel bar after drawing to reduce the residual stress.
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