Temperature Nickel Alloy Pipes Grade Hastelloy C276 for Temperature Corrosion Resistance

HASTELLOY C276 (UNS N10276) is a nickel-chromium-molybdenum superalloy with nominal composition:
✅ ≥14.5% Chromium (Cr) → Forms dense, self-healing passive films rich in Cr₂O₃ under oxidative conditions.
✅ ≥16% Molybdenum (Mo) → Stabilizes against pitting/crevice corrosion by enhancing resistance to halides (Cl⁻, F⁻) and reducing acids.
✅ ~3.7% Tungsten (W) → Adds thermal stability to the matrix at elevated temperatures, delaying phase decomposition.
✅ Trace Cobalt & Iron → Maintain structural integrity without compromising corrosion barrier efficacy.
Unique Synergy: These elements work synergistically to rebuild protective oxide layers even after mechanical damage or thermal cycling—critical for maintaining performance during service fluctuations.

Seamless construction via extrusion eliminates weld seams—the most vulnerable sites for initiation of high-temp corrosion fatigue. Benefits include:
✔️ Uniform grain structure throughout pipe length → Consistent expansion characteristics under thermal transients.
✔️ Absence of fretting wear between joint interfaces → Eliminates galvanic coupling risks in multi-metallic systems.
✔️ Superior surface finish (Ra ≤ 3.2μm achievable) → Minimizes nucleation sites for deposit buildup during cyclic heating cycles.

Hunan Dinghan New Material Technology Co.,Ltd. (DINGSCO) specialized in Nickel Based Corrosion Resistant and High Temperature alloys products which used in the world’s most technically demanding industries and applications.

We have complete advanced technology facilities to produce best quality alloys to meet exacting your specifications such as VIM (Vacuum lnduction Melting) furnace to provide high purity Alloys,ESR (Electro Slag Re-melting) furnace to enhances the structure and purity of the Alloys, and CNC machining equipments (Lathe, Wire cutting, Drilling,Milling) to provide high precision finished products.

We are dedicated to providing our customers with best quality products,fastest possible deliveries, most competitive prices of Nickel Based Corrosion Resistant and High Temperature alloys in bars,rods,forged flanges, valve parts, forged shapes (shafts, discs, blocks, hubs,rings, cylinders and tailor shapes) according to ASTM,ASME,API,AMS, NACE and other industry standards.

We can help you gain a competitive edge in the market by responding to a rush quote in less than 24 hours and even complex requests for price and delivery quotations are responded to within 48 hours.