Part Number WS 1.1268 + Pb

Technical Data Sheet

Chemical Composition Limits
Weight % C Si Mn P Pb S Fe
LAW 100 Pb 0.90-1.05 0.15-0.25 0.30-0.50 0.035 0.20-0.30 0.060-0.070 Rem
Other Chemically similar Specifications
Weight % C Si Mn P Pb S Fe
WS 1.1268 +Pb 0.90-1.05 0.15-0.25 0.30-0.50 0.035 max 0.20-0.30 0.060-0.070 Rem
DIN C1095 (+Pb) 0.90-1.05 0.15-0.25 0.30-0.50 0.0035 max 0.20-0.30 0.060-0.070 Rem

LABOR Pb material is Manufactured in Rod, Bar and coil. For all stock and size availability contact Sales.
(WS 1.1268 +Pb Steel - Hardenable Free Cutting)

Material Features
Law 100Pb combines the characteristics of a pure tool steel and a free-cutting steel, in order to improve the toughness the S-content is not as high as with a pure free-cutting steel. The machining properties have not only been improved by the S and Pb content, but by distinct measures taken during melting and heat treatment of the steel and with help of a favorable balanced tensile range in cold drawn execution adapted to the final sizes.

Standard availability
Ø< 3.00mm: decarb free cold drawn and polished
Ø>= 3.00mm: decarb free cold drawn and ground polished.

Standard ISO h7, up to +/- 0.002mm on request in short time available out of roundness: 1/2 of dia tol

Tensile strength Rm: approx 650-950 N/mm2 depending on the dimension

Heat Treatment:
Hardening Temp 800-820ºC (up to dia 5.00mm)
780-800ºC ( above dia 5.00mm)
quenching in oil (oil temp) 50-60ºC slow furnace cooling max

Obtainable hardness
64-66 HR

Cutting Rate
55 to 65 m/min (approx value, depending on the lubrication oil, cutting tools, sharpe of parts)

Stock Range
Ø 0.50 to 9.50mm

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 (

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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.

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