Bernhard Marquart
Stainless Steel Turned Parts from the Marquart production
Materials · 01 / 04

Stainless steel turned parts. Corrosion-resistant, to drawing.

Precision turned parts in rust- and acid-resistant stainless steel up to Ø 42 mm. From 1.4305 for series production to 1.4404 for medical and food technology.

Stainless Steel Turned Parts

Stainless steel turned parts to your drawing – in the materials that set the standard in medical technology, the food industry and hydraulics.

Stainless steel is one of the materials we machine most. On our CNC Swiss-type automatics we manufacture rotationally symmetric stainless steel turned parts up to Ø 42 mm – reproducible from the very first unit, in small and large series.

The choice of grade determines corrosion resistance and machinability. For easy-machining series parts we use the free-cutting stainless steel 1.4305. Where resistance to chlorides and acids is required – for example in medical or food technology – we machine 1.4404 (316L) and the titanium-stabilized 1.4571.

Stainless steel tends to work-harden and places high demands on cutting parameters and tool life. Over seven decades of turning practice we have tuned our processes accordingly: tight tolerances, defined surface finish and passivated, burr-free components.

More on material science: Turning stainless steel: materials & tolerances

Materials & alloys

Stainless steel grades we machine.

1.4305
X8CrNiS18-9
free-cutting stainless steel, best machinability for series parts
1.4404
X2CrNiMo17-12-2 (316L)
acid-resistant, weldable, medical and food technology
1.4571
X6CrNiMoTi17-12-2 (316Ti)
titanium-stabilized, high-temperature and corrosion resistant
1.4301
X5CrNi18-10 (304)
the classic V2A standard for general applications

Typical parts

  • Surgical instruments and laboratory equipment
  • Components for food and packaging technology
  • Bushings and pins for hydraulics and pneumatics
  • Fasteners and special nuts
Frequently asked questions

FAQ on Stainless steel turned parts.

Which stainless steels do you machine for turned parts?+
As standard 1.4305 (free-cutting stainless steel), 1.4404 (316L), 1.4571 (316Ti) and 1.4301 (304). Further grades such as duplex 1.4462 on request.
Up to what diameter do you turn stainless steel?+
Bar stock up to Ø 42 mm. The economical sweet spot is Ø 3–32 mm in small and large series.
What tolerances are achievable in stainless steel?+
IT7 is standard, IT6 with adapted machining strategies. Tighter dimensions via downstream grinding at our partners.
Are the parts suitable for medical technology?+
Yes. With 1.4404 and 1.4571 we manufacture for non-implant medical technology. Tuttlingen region, ISO 9001:2015, 3.1 material certificate on request.
Do you deliver the turned parts passivated?+
We coordinate passivation and electropolishing through established partners. You receive the finished, corrosion-protected component from a single source.
How quickly do I get a price?+
Send us your drawing – we check feasibility and the right process and get back to you with a binding quote within 48 hours.
Contact

Your drawing on our desk.

We check feasibility, suggest optimizations and get back to you within 48 hours with a first assessment – personally, from Reichenbach am Heuberg, Germany.