Cold Finished

Our cold finished process or rough turned consists of the removal of material in the diameter of the bar by means of a high-speed tool head and subsequently a polishing and straightening process through a set of rollers.

Through this process we guarantee a surface free of scales and without alterations of their physical and mechanical properties. With the absence of decarburization, this product is ideal for manufacturing parts and components that will be subjected to heat treatment.

An advantage of this product is that we have the ability to work with custom diameters allowing our customers a cost savings in their machine time.

  • Grades: 1018, 1045, 4140, 8620
  • ASTM A-108
  • Range Diameters: 1-1/2 ” to 6″
  • Capacity: 100,000 tons / year
Chemical Composition
Steel C (%) Mn (%) P(%) S(%)
Grade 1018 0.15 – 0.20 0.6 – 0.9 0.04 (MAX) 0.05 (MAX)
Mechanical Properties
Surface Tensile Strength Yield Strength Elongation (%) Hardness (Brinell)
Hot Rolled 58,000 psi (min) 32,000 psi (min) 25% 118
Cold Drawn 63,800 psi (min) 53,600 psi (min) 15% 128

Description

The 1018 cold drawn bar is one of the most common types of cold finished steel bar, since it is a versatile steel grade that can be used in hundreds of different applications. 1018 CD steel is a low carbon steel and medium manganese content that is an ideal choice for applications that do not need the strength of the highest carbon steel grades, including carbureted components. The 1018 steel bar has excellent weldability properties, is good for cold forming/bending applications and has good machinability as well as surface hardening properties.

Application

We supply 1018 cold finished steel bars to a variety of industries such as automotive, heavy machinery, material handling, electric motors and many more. Some common components can be bushings, stabilizer bars, suspensions, fasteners, connecting rods, bolts, spacers, gears, among others.

Chemical Composition
Steel C (%) Mn (%) P(%) S(%)
Grade 1045 0.43 – 0.50 0.6 – 0.9 0.04 (MAX) 0.04 (MAX)
Mechanical Properties
Surface Tensile Strength Yield Strength Elongation (%) Hardness (Brinell)
Hot Rolled 81,900 psi 45,000 psi 16% 163
Cold Drawn 90,900 psi 76,900 psi 12% 179

Description

Grade 1045 is characterized by good weldability, good machinability and high strength and impact properties, whether in hot rolling or cold finishing conditions.

1045 is widely used by all sectors of the industry for applications that require more hardness and wear resistance than soft, low carbon steels.

Application

Some components of grade 1045 include shafts, pistons, heavy duty machinery parts, pump shafts (psq), pinions, rollers, hydraulic cylinders, axles, among others.

Chemical Composition
Steel C(%) Cr Mn(%) Si(%) Mo Mn(%) P(%) S(%)
Grade 4140 0.38 – 0.43 0.80 – 1.10 .75 – 1.0 0.15 – 0.30 0.15 – 0.25 0.75 – 1.0 0.035 (MAX) 0.04 (MAX)
Mechanical Properties
Surface Tensile Strength Yield Strength Elongation (%) Hardness (Brinell) Reduction of Area
Hot Rolled 95,000 psi 60,200 psi 20 – 30 197 50%

Description

Grade 4140 steel is a low alloy steel that contains chromium, molybdenum and manganese to improve its mechanical properties. It is widely used in numerous industries and is an excellent choice of material due to its hardness, high resistance to fatigue and resistance to abrasion and impact. Not many grades can match the versatility and utility of 4140.

Application

Common applications include drill collars, piston pins, shafts, pinions, gears, crankshafts, spindles and couplings.

*The following values are theoretical and representative of this grade. Contact our sales team!