SIGRICARE
Pipe Roofing System
HEAVY STEEL CASING PIPES

S355 Structural Steel Casing Pipes for Pipe Roofing

Heavy gauge S355 structural casing pipes with precision-machined internal and external threads for seamless interlocking in tunnel umbrella arches.

Standard EN 10025 S355
Yield Min 355 N/mm²
Tensile Strength 490 – 630 N/mm²
Elongation ≥ 22% Ductile
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ENGINEERING METRICS

TECHNICAL DATA & SPECIFICATIONS

Standard EN 10025 Grade S355 / DIN 17100 St 52-3
Minimum Yield Strength 355 N/mm²
Tensile Strength 490 – 630 N/mm²
Minimum Elongation 22%
Chemical Composition C ≤ 0.20%, Mn ≤ 1.60%, P ≤ 0.035%, S ≤ 0.035%