Custom steel machining: CNC steel parts for industry
C45, 42CrMo4, carbon and alloy steels: machined steel parts for transmission, tooling and machinery. CNC turning and milling, fast quote.
Machined steel: the benchmark for mechanical strength
Machined steel remains the dominant choice for highly stressed parts: shafts, gear blanks, tooling, flanges and transmission components.
CNC milling and turning make it possible to hold tight tolerances, threads and functional bearing surfaces on carbon and alloy steels.
Lusinage handles prototypes, spare parts for stopped machines and small steel runs, with advice on grade, heat treatment and grinding where necessary.
Why machine in steel?
High strength
Suited to loads, impacts and wear with the appropriate grade and treatment.
Controlled material cost
Excellent performance-to-cost ratio for many industrial parts.
Wide choice of grades
C45, 42CrMo4, tool and carbon steels depending on target hardness and weldability.
Treatment compatibility
Hardening, tempering, case hardening or nitriding possible through partners, per drawing.
Common machined steel parts
Steel transmission shaft, spindle and axle
Steel flange, plate and fixing part
Pinion, pulley and transmission part
Tooling, jig and press part
Steel bush, spacer and washer
Machine tool spare part
Steel hydraulic component
Welded-machined bracket and mechanical frame
Mechanical prototype before treatment
Steel machining: frequently asked questions
Which steel grades do you machine?
C45, 42CrMo4, common carbon and alloy steels per drawing. Special grades on request.
Is the steel supplied raw or treated?
Machining is generally done on material in its available condition; heat treatments are coordinated if included in the specification.
C45 or 42CrMo4 for a shaft?
C45 for standard use; 42CrMo4 for higher stresses and better durability, depending on the load.
Machining hardened steel?
Feasibility depends on hardness and geometry; grinding or EDM sometimes needed, study on quote.
What tolerance on a steel part?
ISO tolerances and functional fits per drawing; critical concentricity on shafts.
Lead time for a stopped-machine spare part?
Prioritisation possible depending on load; express lead time to be discussed on an urgent quote.
Steels for subsequent welding?
Choice of low-carbon or alloy grade according to the planned welding process: state this on the quote.
Steel part without a CAD file?
Dimensioned PDF or sample for reverse engineering, then machining.
Run of identical steel parts?
Yes. CNC repeatability for pre-series and small industrial runs.
How do I protect steel against corrosion?
Zinc plating, paint, or choice of stainless steel/aluminium if the environment is damp: advice upfront.
Start your steel manufacturing
One-off, spare part or run, European CNC machining, worldwide shipping.
Get a quote