Seamless Precision Tubes

Welded Precision Tubes

Cylinder Tubes & Piston Bars

Seamless cold-drawn precision steel tubes for the production of piston tubes

Cylinder tubes, honed or skived and roller burnished

Cylinder tubes suitable for honing or skiving and roller burnishing

Hard chromed piston tubes

Hard chrome bars

Dimensions: Outside diameter 8 to 250 mm

Tolerances: Outside diameter 8 to 16 mm acc. to f8 | Outside diameter 18 to 250 mm acc. to f7. Other tolerances on request

Materials:

Steel grade (EN)
C45E
20MnV6 (E470)
42CrMo4+QT
X17CrNi16-2
X2CrNiMoN22-5-3
X3CrNiMoN27-5-2
38MnVS6

Material number
1.1191*
1.5217
1.7225*
1.4507 / AISI 431
1.4462
1.4460 / AISI 329
1.1303*

other materials on request
* also induction hardened

Surface: Chromed / Double chromed and Nikrom 500 (nickel / chrome). Ra max. 0.25 μm

Chrome: Thickness: min. 14 μm for bars with an outside diameter of 8 to 18 mm min. 

20 μm for bars with an outside diameter of 20 to 250 mm Micro hardness min. 850 HV 0.1

Nikkel Chrome (NIKROM 500): Thickness min. 30 μm nickel / min. 20 μm chrome

Corrosion Resistance: Min. 200 h in NSS rating 9 for single chrome, Stainless qualities and nickel-chrome have a much higher corrosion resistance

Testing: Corrosion testing acc. to ISO 9227

Certification: 3.1 acc. to EN 10204. Other certifications on request

Seamless Precision Tubes

Welded Precision Tubes

Cylinder Tubes & Piston Bars

Seamless cold-drawn precision steel tubes for the production of piston tubes

Cylinder tubes, honed or skived and roller burnished

Cylinder tubes suitable for honing or skiving and roller burnishing

Hard chromed piston tubes

Hard chrome bars

Dimensions	Outside diameter 8 to 250 mm
Tolerances	Outside diameter 8 to 16 mm acc. to f8 Outside diameter 18 to 250 mm acc. to f7 other tolerances on request
Materials	Steel grade (EN) C45E 20MnV6 (E470) 42CrMo4+QT X17CrNi16-2 X2CrNiMoN22-5-3 X3CrNiMoN27-5-2 38MnVS6 Material number 1.1191* 1.5217 1.7225* 1.4507 / AISI 431 1.4462 1.4460 / AISI 329 1.1303* other materials on request * also induction hardened
Surface	Chromed Double chromed and Nikrom 500 (nickel / chrome) Ra max. 0.25 μm
Chrome	Thickness: min. 14 μm for bars with an outside diameter of 8 to 18 mm min. 20 μm for bars with an outside diameter of 20 to 250 mm Micro hardness min. 850 HV 0.1
Nikkel Chrome (NIKROM 500)	Thickness min. 30 μm nickel / min. 20 μm chrome
Corrosion resistance	Min. 200 h in NSS rating 9 for single chrome, Stainless qualities and nickel-chrome have a much higher corrosion resistance
Testing	Corrosion testing acc. to ISO 9227
Certification	3.1 acc. to EN 10204 other certifications on request