Better Metal is a premier international manufacturer and processor of high-performance nickel-based corrosion-resistant alloys. When standard austenitic and duplex stainless steels reach their operational limits against pitting, crevice attack, and chloride-induced stress corrosion cracking (CSCC), our corrosion-resistant alloys provide complete operational reliability. Engineered with high levels of nickel, chromium, molybdenum, tungsten, and copper, our portfolio encompasses world-renowned alloy families including Hastelloy®, Inconel®, Monel®, Incoloy®, and commercially pure nickel. We deliver complete mill forms (plates, sheets, seamless pipes, round bars, wire) as well as custom precision-machined valves, pump impellers, fasteners, and pressure vessel components.
Unlike iron-base stainless steels, nickel-base corrosion-resistant alloys feature an austenitic matrix with high nickel solubility that tolerates massive additions of chromium (for oxidizing media resistance), molybdenum/tungsten (for reducing acid and pitting resistance), and copper (for sulfuric and hydrofluoric acid resistance). They offer Pitting Resistance Equivalent Numbers (PREN) ranging from 45 to over 75, virtually eliminating localized pitting and stress corrosion cracking in aggressive industrial media.
1. Chemical & Petrochemical Process Engineers:
Operating Challenges: Exposure to boiling hydrochloric acid, wet chlorine gas, acetic/formic acids, sulfuric acid blends, and severe intergranular corrosion in weld heat-affected zones.
Recommended Materials: Hastelloy® C-276 (UNS N10276), C-22 (UNS N06022), Hastelloy® B-2 / B-3 (UNS N10665).
Key Applications: Reactors, distillation columns, shell-and-tube heat exchangers, reboilers, acid metering pumps, and lined piping systems.
2. Oil & Gas / Sour Field (H₂S + CO₂) Operators:
Operating Challenges: Severe sulfide stress cracking (SSC), hydrogen embrittlement, and chloride attack at high downhole pressures and temperatures.
Recommended Materials: Inconel® 625 (UNS N06625), Incoloy® 825 (UNS N08825), Incoloy® 925, Monel® K-500. Fully compliant with NACE MR0175 / ISO 15156.
Key Applications: Downhole safety valves, production tubulars, wellhead christmas tree components, subsea manifolds, and sour-gas flare tips.
3. Marine, Subsea & Naval Defense Constructors:
Operating Challenges: Fast-flowing turbulent seawater cavitation, crevice corrosion under marine bio-fouling, and salt spray atmospheric exposure.Recommended Materials: Monel® 400 (UNS N04400), Monel® K-500 (UNS N05500), Inconel® 625.
Key Applications: Propeller shafts, seawater pump impellers, submarine piping systems, splash-zone cladding, and seawater heat exchanger tube sheets.
4. Flue Gas Desulfurization (FGD) & Environmental Systems:
Operating Challenges: High concentrations of chlorides (up to 100,000 ppm), sulfuric/sulfurous acid condensates, and erosive fly ash slurries.Recommended Materials: Hastelloy® C-276, Inconel® 686, Incoloy® 825.
Key Applications: FGD absorber towers, scrubber mixing zones, wet electrostatic precipitators (WESP), and induced draft fan dampers.
5. Pharmaceutical & Caustic Alkali Producers:
Operating Challenges: Severe caustic embrittlement at elevated temperatures and strict requirements preventing metallic ion contamination into clean media.
Recommended Materials: Nickel 200 (UNS N02200), Nickel 201 (UNS N02201 - low carbon).
Key Applications: Caustic soda evaporators, pharmaceutical synthesis tanks, fatty acid chlorinators, and spinning bath piping for synthetic fibers.
Corrosion Plates & Sheets: Thickness 0.5 mm – 50 mm; Width up to 2000 mm; Length up to 6000 mm (Cold-rolled 2B or hot-rolled pickled No.1 finish).
Seamless Pipes & Tubing: OD 6 mm – 325 mm; Wall thickness 0.5 mm – 25 mm (ASTM B163, B167, B622).
Round Bars & Forged Shafts: Diameter 6 mm – 350 mm (Peeled, centerless ground, or turned finish).
Pipe Fittings & Flanges: Elbows, tees, reducers, slip-on/blind flanges (ANSI / ASME B16.5).
Custom CNC Finished Parts: Precision machined valve bodies, stems, pump impellers, and autoclave liners per customer drawings.
Immunity to Chloride Stress Corrosion Cracking (CSCC): High nickel content (> 50%) provides near-complete resistance to chloride cracking.
Extra-Low Carbon & Silicon Chemistry: Eliminates grain-boundary carbide and intermetallic phase precipitation during welding, preserving as-welded corrosion resistance without post-weld solution treatment.
High Critical Pitting / Crevice Temperature (CPT/CCT): Far higher than 316L, 904L, or 254SMO, offering continuous reliability in stagnant, halide-rich solutions.
TEL: 86-18623759992
jason@bettmetal.com
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