Schierle Siyaya
Siyaya · we move forward

Our Big Five.
Your competitive edge.

Superior capacity. Uncompromising quality. A unique global range — from factory-run orders to single repair quantities, direct from stock.

One of five

Seamless Stainless Steel Tubes

A wide range for every industry and application. Focused on delivering top-grade products that meet the highest standards of quality and performance — from repair quantities to factory-run volumes.

  • OD 6.00 – 219.10 mm
  • Wall thickness 1.00 – 23.01 mm
  • EN 10216-5 · ASTM A 312
  • 304/L · 316/L · 321/H · 316Ti
Seamless Stainless Steel Tubes
Two of five

Hydraulic Line Tubing

Bright-annealed, cold-finished tubing engineered for hydraulic applications. Reliable in high-pressure systems, delivered to strict European and American specifications.

  • OD 6.00 – 42.00 mm
  • EN ISO 1127 D4/T3 · ASTM A 269
  • Cold-finished · bright annealed
  • 304/L · 316/L · 321/H · 316Ti
Hydraulic Line Tubing
Three of five

Instrumentation Tubes

Tight-tolerance tubing for instrumentation, control, and precision fluid applications. Where measurement matters — this is the grade you reach for.

  • OD 6.00 – 42.00 mm
  • EN ISO 1127 · ASTM A 269/213
  • Cold-finished · bright annealed
  • 304/L · 316/L · 321/H · 316Ti
Instrumentation Tubes
Four of five

Processing

Send us a drawing. We deliver finished components to spec — any material, any complexity, one point of contact. Stockist prices with engineered delivery.

  • Three ways in: Our stock · Yours · Drawing only
  • Services: cutting, bending, CNC-turning, milling, coating, pre-assembly — and beyond.
  • Volume: Prototypes to production runs
  • Materials: No limitation
Processing
Five of five

Consulting

Strong partnerships built on trust — turning challenges into results, ideas into measurable success. The agility of younger consultants combined with the depth of seasoned specialists.

  • Availability: Reliable, responsive
  • Languages: DE · EN · more on request
  • Approach: Step-by-step partnership
  • Expertise mix: Young agility + deep legacy
Consulting
The technical detail

Stock specifications at a glance.

Everything in stock. Everything certified. Everything ready to ship.

SpecificationRhinoBuffaloLion
OD range6.00 – 219.10 mm6.00 – 42.00 mm6.00 – 42.00 mm
Wall thickness1.00 – 23.01 mmcold-finished / bright annealedcold-finished / bright annealed
StandardsEN 10216-5 · ASTM A 312EN ISO 1127 D4/T3 · ASTM A 269EN ISO 1127 · ASTM A 269/213
Grades in stock304/L · 316/L · 321/H · 316Ti304/L · 316/L · 321/H · 316Ti304/L · 316/L · 321/H · 316Ti
CertificationEN 10204 3.1/3.2EN 10204 3.1/3.2EN 10204 3.1/3.2
TestingNACE · IGC · PMINACE · IGC · PMINACE · IGC · PMI
Downloads

The full Big Five, in one PDF.

Complete product range, specifications, and certifications.

Product range (PDF)
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