Part Number Law 100X / WS 1.1268

Technical Data Sheet

Chemical Composition Limits
Weight % C Si Mn S Fe
LAW 100 X 0.90-1.05 0.15-0.25 0.30-0.50 0.040-0.080 Rem

Powder melted, hardenable, unalloyed free cutting steel with 1% of carbon, specially designed for small high precision parts in the watch and instrument industry also used for security parts in ABS braking systems. For all stock and size availability contact Sales.

Manufactured in Rod, Bar and coil
Coil 0.30mm to 3.5mm
Rod 0.4mm to 3.5mm
Other sizes on request. For all stock and size availability contact Sales.

Standard ISO h6, up to +/- 0.002mm on request in short time available out of roundness: 1/2 of dia tol

Tensile strength Rm: approx 670-800 MPa/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
64-67 HRC

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

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.

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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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