Part Number WS 1.4197

Technical Data Sheet

Chemical Composition Limits
Weight % C Si Mn Cr S Mo Ni Fe
CHRONIFER LABOR M-PLUS 0.20-0.25 0.60 max 1.50 max 12.50-14.00 0.15-0.25 0.75-1.25 1.0-1.20 Rem
Other Chemically similar Specifications
Weight % C Si Mn Cr S Mo Ni Fe
WS 1.4197 0.20-0.25 0.60 max 1.50 max 12.50-14.00 0.15-0.25 0.75-1.25 1.0-1.20 Rem
DIN X20CrNiMoS131 0.20-0.25 0.60 max 1.50 max 12.50-14.00 0.15-0.25 0.75-1.25 1.0-1.20 Rem

Chronifer Labor M-Plus is a hardenable alloyed free-cutting stainless steel for high precision parts, with a better corrosion resistance than AISI 420 F (1.4034 +S) which is manufactured in Rod, Bar and coil. For all stock and size availability contact Sales.

Material Properties
This product is a compromise between good machinability (S-Content), high wear resistance (Cr-Ni-Mo content) and possibility for hardening (C-Content). Chronifer Labor M-Plus resists to corrosion after tempering and a forced polishing of the parts.

Coil: Ø 0.50 - 3.00mm for Escomatic machines
Bars: Ø 1-1.90mm cold drawn (ground on request)
Ø 2-10.00mm ground and polished
Standard bar length: 3m surface roughness Ra 0.4 (N5-N6)

Standard Tolerances
Diameter: h8 (more accurate with short delivery on request)
Length: +/- 30 mm
Out of roundness/eccentricity: 1/2 of dia tol.

Heat Treatment
Hardening: 1000-1050 ºC, slow furnace cooling (2-4 hours)
Soft annealing: 750-850 ºC
Max obtainable hardness 48-52 HRC

Cutting Rate
40-55m/min (approximate value, depending on the lubrication oil, the cutting tools, the 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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