Category 04

Free-Machining Steels

With 0.15–0.35% lead content, calibrated free-machining steels offer superior machinability. The lead remains insoluble in the steel matrix and acts as a natural internal lubricant, dramatically improving cutting conditions.

Result: smooth tool flow, finer chip formation, better surface finish, increased tool life and higher productivity in mass CNC production applications.

Calibrated leaded steel bars
Forms
05

Shapes
& Dimensions

Available in all main shapes and dimensions for CNC machining shop requirements.

Round Bars

Diameters from Ø5 to Ø100 mm, tolerances h9 or h11. For CNC automatic machines and high-speed lathes.

Hexagonal Bars

From SW 8 to SW 60 mm. For machining bolts, nuts, fittings, screws.

Square Bars

Various dimensions for bases, plates, rectangular-section pins.

Flat Bars

Wide bars for plates, mounting bases — various dimensions.

Calibrated St37-2

Weldable bars grade St37-2 (1.0037) in wide range of dimensions.

Advantages
05

Five Reasons
To Choose Leaded

01
Increased Cutting
Speed
+25% to +35% higher cutting speeds compared to equivalent non-leaded steels.
02
Better Surface
Finish
Lead acts as internal lubricant, producing smooth surfaces without the need for final polishing in many applications.
03
Extended Tool
Life
Reduced cutting tool wear, with significant savings on consumables in mass production.
04
Fine Chip
Formation
Produces broken, fine chips that are easily evacuated — fewer jams on automatic machines.
05
Designed
For CNC
First choice for production on CNC automatics, screw machines and high-speed machining lines.

Run A CNC Machine Shop?

Request a quotation for calibrated leaded bars in your required dimensions.

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