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 we specialise in the rapid turn-around of orders, with most stock items ready for shipping out the same day to anywhere in the world. For time-critical orders, such as AOGs use our AOG service desk (, the team are dedicated to processing and dispatching orders on the same day, even for cutting orders on bar and sheet products.

Our expertise in global logistics enables us to source material from anywhere in the world in a matter of days and provide fast shipping solutions to all our customers, whichever country they are in. We use a range of transport partners to ship overnight within the UK and Europe, and offer a full range of logistics solutions from priority express services to more cost-effective economy shipments all around the globe. To find out more about our services click here.

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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.