
Monel 400 405 Stainless Steel Pipe Immune to Hydrofluoric Acid Hf Alkylation Service. PMI Verified:100% Positive Material Identification to prevent grade mix-up. SCC Immunity:Immune to Chloride Stress Corrosion Cracking (Cl-SCC). Dual Melting:VIM+ESR process ensures ultra-high purity and toughness. Long Lifespan:20+ years design life in seawater (Inconel 625 / Monel 400). Precision Tolerance:OD 0.05mm / WT 5%, straightness 1mm/m. Sour Service:NACE MR0175 certified for H2S/CO2 oil & gas fields. U-Bend Ready:Custom prefabrication & stress relieving service available. 3.2 MTC:EN 10204 3.2 certificate with full traceability. Wide Temp Range:Stable from -196C (Cryogenic) to 1200C (Furnace). Safe Packing:VCI + wooden case export packing, rust-free arrival.