Features:

Material: HP/HT-resistant alloys (e.g., 25Cr35NiNb). Material Grades ASTM A608, UNS N06625

Key Specifications:

High-temperature strength (up to 1150°C) for ethylene and propylene production.
OD Range: 80–400 mm | Wall Thickness: 10–50 mm | Length: Up to 12 m
Carburization Resistance: <1.5% carbon penetration after 50,000 hours at 1100°C

Performance Features:

Optimized for ethylene/propylene cracking with cyclic thermal stress resistance. Micro-alloyed with Nb/Ti for enhanced creep rupture strength (≥20 MPa at 1000°C).