Part Number WS 1.0759

Technical Data Sheet

Chemical Composition Limits
Weight % C Si Mn P Pb S Fe
LABOR PB 0.65-0.75 0.10-0.40 0.50-0.90 0.07 max 0.15-0.30 0.15-0.30 Rem
Other Chemically similar Specifications
Weight % C Si Mn P Pb S Fe
WS 1.0759 0.65-0.75 0.10-0.40 0.50-0.90 0.07 max 0.15-0.30 0.15-0.30 Rem
DIN 70 SPb 20 0.65-0.75 0.10-0.40 0.50-0.90 0.07 max 0.15-0.30 0.15-0.30 Rem

LABOR Pb material is a hardenable, unalloyed free cutting steel which is manufactured in Rod, Bar and coil. (WS 1.0759 Steel - Free Cutting - Unalloyed). For all stock and size availability contact Sales.

Stock Range
Range from Ø 0.80 to 12.50mm

Ø 3.00mm drawn decarb free and polished
Ø 3.00mm drawn decarb free, ground and polished, surface Ra 0.40

Mechanical Properties
Tensile Strength at delivery from 650 to 900 N/mm2

Available in 3 or 2 mtr bars or in coil for Escomatic machines

Heat Treatment
810-830ºC hardening in oil for Ø<5mm
790-810ºC hardening in oil for Ø<5mm
660-700ºC soft annealing

Max obtainable hardness
63-65 HRC 9 for parts with high hardness.

Cutting Rate
60 to 80m/min dependant on lubrication oil, the cutting tool and the shape of the parts

h8, more accurate tolerances available on request.

At Aircraft Materials all stock items can be shipped out within 24 hours, usually within the same day. Even cutting orders for bar or sheet can be processed and dispatched the same day, and for time-critical situations such as AOGs, we have a dedicated AOG service desk ready to help (

Thanks to our global logistics network we can source from anywhere in the world in just a few days. We use a range of transport partners to enable us to ship overnight within the U.K. and Europe and provide fast shipping solutions to the rest of the world. If your requirement is urgent we can offer a priority shipping service, but also if time is not so critical we can offer more cost-effective options to ensure you get the best value for money. To find out more about our services click here.

Return to Main Precision Ground Material

Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.

Sell your Stock Online at