Cold Drawn Precision Tubes
Technical Tables : DIN 2393 |
Field of Application
Automotive: Shock absorber outer and inner tubes, gas springs, steering systems, vibration dampers, axles and propeller shafts, engine mounts, stabilizer bars, side-impact protection, car & bus seats , bus body frames, etc.
Hydraulic cylinders: Cylinder tubes suitable for honing, suitable for skiving and roller burnishing, cylinder tubes ready to use (H9)
Steel furniture: Chairs, tables, bookshelves, trolleys, perambulators, chaise-lounge, etc.
Home appliance: Vacuum cleaner, vibration damper.
Design elements: Towel rails, greenhouse tubing, elliptical and flat-oval hollow sections for special accessories.
Others: Heating systems, mechanical engineering, textile machinery industries.
Production Standarts
Mechanical Tubing:
EN 10305-3, BS 6323 Part 5, DIN 2394
Cold Drawn Welded Tubes:
EN 10305-2, BS 6323 Part 6, DIN 2393
Others upon request.
Material Quality
Uncoated Steel Strips:
E 235, E 275, E 355 acc. To EN 10025 (DIN 17100)
St 12, St 13, St 14 acc. To DIN 1623
Micro-alloyed steel (S355NC, S420NC, S355MC, S460MC etc.)
Induction Hardening Steel Alloys:
20 Mn B5, 30 Mn B5, others as requested
ASTM A 500 Gr A, Gr B, Gr C
Sendzimir for Hot-Dip Galvanized Strips:
EN 10142
ASTM A 526/527
Finishing Operations
Heat treatment: Stress relieving, annealing, normalizing
Cold drawn hard or soft over mandrel
Sink-drawn
Cut-to-length
Induction Hardening
Tests Performed
The following tests are performed as per standart requirements or agreement with the customer:
Visual and Dimensional Inspection
Tensile Test
Drift Expanding Test
Flattening Test
Reverse Bending
Flanging Tests
Chemical Analysis
Eddy Current Testing
Surface Roughness Test
Mill Test Certificates
Acc. To EN 10204 3.1; 2.2