Services / Machining / CNC machining / Industrial parts manufacturing / Custom steel part
Sectors

Custom machined steel part | CNC quote

C45, 42CrMo4 or tool steel: we machine your steel parts to drawing with tight tolerances. CNC turning and milling, online quote.

Mechanical industry
Steel machining

Manufacturing custom machined steel parts

Mechanical steel parts for transmission, fastening, tooling and industrial maintenance.

Industrial precision

Tight tolerances, controlled surface finishes and dimensional inspection for reliable parts in continuous operation.

From prototype to series

Rapid prototyping, pre-series and small to medium batches with an scalable manufacturing strategy.

Responsiveness & technical advice

Feasibility review, material selection and process guidance from the first quote request.

Machined steel

Custom steel part: strength and precision

Custom steel machining meets load, wear and shock constraints in industrial environments. Grade and heat treatment choice matter as much as geometry.

Lusinage works the most requested steels: C45, 42CrMo4, tool steels, with adapted dimensional control.

From prototype to small series, we deliver ready-to-assemble steel parts.

Machinable materials

Compatible materials

Steel, stainless, aluminium, brass, copper and engineering plastics according to your specification.

Aluminium

Lightweight and machinable for structures and non-ferrous components.

Steel

Mechanical strength for transmission and fastening parts.

Stainless steel

Corrosion resistance for wet or food environments.

Brass & bronze

Excellent machinability for bushes and fittings.

Copper

Conductivity for electrical and thermal components.

Engineering plastics

POM, PA, PEEK for guides, insulators and lightweight parts.

Processes

Manufacturing capabilities

CNC machining, turning, milling, EDM and 3D printing depending on geometry and volume.

CNC machining

Precision and repeatability for custom industrial parts.

CNC turning

Rotational and cylindrical parts.

CNC milling

Prismatic geometries, holes and pockets.

EDM

Complex shapes and hard materials.

3D printing

Rapid prototyping before industrialisation.

Why Lusinage

Why trust us with your manufacturing?

Workshop expertise, human support and online quoting — made in France.

Technical expertise

Every request is reviewed by a qualified machinist.

Fast online quote

Upload STEP/STL or PDF, personalised response within a few days.

Made in France

Network of workshops in France, nationwide delivery.

No minimum order

Single part, spare or small batch — no imposed quantity.

Applications

Examples of machined steel parts

Steel shaft, axle or transmission part

CNC turning with tight tolerances.

Steel flange, plate or fastening part

CNC milling for interfaces and holes.

Steel spare part

Remanufacturing for MRO maintenance.

Tooling or press part in steel

Robust components for harsh environments.

How it works

Your part in 4 steps

1
1. Send your files

PDF drawing, STEP file or sample with material and quantity.

2
2. Quote & feasibility

Technical review and proposal with lead time.

3
3. Manufacturing & inspection

CNC machining or 3D printing with dimensional control.

4
4. Delivery

Parts ready to assemble, support for series production.

FAQ

Machined steel part: FAQ

C45, 42CrMo4, tool steels, stainless if needed.

Subcontracting possible to drawing (hardening, tempering, case hardening).
Our solutions

Related processes

CNC machining, 3D printing, STEP viewer and online quote.

Steel part to machine? Upload your drawing or STEP

Custom steel machining, personalised quote, delivery in France.

Request a quote