Ground & Polished

Prior to our grinding & polishing process, our bars undergo the cold drawing process, are cut to the specified length and subsequently their diameter is ground to diameters and then surface polished.

This additional process adds superior dimensional accuracy to the bars, and its finish is smooth and shiny with a low surface roughness.

It is highly specialized and our leading product with main applications such as the irrigation industry, where it is used in pump shafts for deep well water pumps. Additional applications also include the industry of electric motors and transmissions.

The main advantage of this product are its tight tolerances and its finished machining conditions thus reducing its manufacturing process & machine time to the final product.

The range of diameters of ground & polished bars are from 3/4 ” to 2-3/16″.

  • Grades: 1018, 1045
  • ASTM A-108
  • Range and process:
    • Cold Drawn, Ground & Polished: 3/4″ to 2-3/16″
    • Cold Finished, Ground & Polished: 1-1/2″ to 2-3/16″
  • Capacity: 5,000 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.

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