Wuxi Nickel Alloy New Material Technology Co., Ltd
Wuxi Nickel Alloy New Material Technology Co., Ltd
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Hastelloy C276 High-Temp Rods | Chloride & Sulfuric Acid Resistant Alloy
Hastelloy C276 bar, a nickel-molybdenum-chromium alloy, excels in extreme environments, outperforming conventional alloys like Inconel® or Monel®. Engineered for severe chemical, petrochemical, and marine applications, Hastelloy C276 bars deliver unmatched resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC) in chloride-rich or acidic conditions—critical for Southeast Asia’s humid, coastal climates. Unlike generic stainless steels or lower-grade nickel alloys, C276 bars maintain structural integrity in oxidizing and reducing media, even at elevated temperatures (up to 1040°C). This makes them ideal for heat exchangers, reactors, and offshore drilling components. With superior weldability and minimal post-weld treatment, Hastelloy C276 bars reduce downtime and lifecycle costs, aligning with the cost-efficiency priorities of South Asian and ASEAN industries. Trusted by global suppliers (referencing Haynes International® and Corrosion Materials® standards), C276 bars ensure reliability in sulfuric, hydrochloric, and phosphoric acid environments, cementing their role as the go-to solution for high-risk, mission-critical projects. For ISO-certified Hastelloy C276 bar stock with fast lead times across India, Thailand, and Indonesia, prioritize vendors offering mill-test reports and tailored machining services.
Chemical Composition, Applicable Standards & Physical Parameters For Hastelloy C276 Rod
| Category | Details |
|---|---|
| Chemical Composition | |
| Nickel (Ni) | Balance |
| Chromium (Cr) | 14.5–16.5% |
| Molybdenum (Mo) | 15.0–17.0% |
| Iron (Fe) | 4.0–7.0% |
| Tungsten (W) | 3.0–4.5% |
| Cobalt (Co) | ≤2.5% |
| Carbon (C) | ≤0.01% |
| Manganese (Mn) | ≤1.0% |
| Silicon (Si) | ≤0.08% |
| Sulfur (S) | ≤0.03% |
| Phosphorus (P) | ≤0.04% |
| Vanadium (V) | ≤0.35% |
| Applicable Standards | |
| ASTM | B574 (Bar & Wire), B575 (Plate/Sheet/Strip), B619/B626 (Welded Pipe) |
| ASME | SB-574, SB-575 |
| EN | 2.4819 |
| Physical Parameters | |
| Density | 8.89 g/cm³ |
| Melting Range | 1325–1370°C |
| Elastic Modulus | 205–208 GPa |
| Thermal Expansion (20–100°C) | 11.7 × 10⁻⁶/°C |
| Thermal Conductivity (100°C) | 10.2 W/m·K |
| Electrical Resistivity | ~1.3 μΩ·m |
| Magnetic Permeability | Weakly magnetic (varies with processing) |
Mechanical Properties of Hastelloy C276 rod
| Property | Typical Value | Conditions/Notes |
|---|---|---|
| Tensile Strength (Rm) | 690–760 MPa | Room temperature (annealed condition); may vary with cold working or heat treatment. |
| Yield Strength (Rp0.2) | 283–350 MPa | Room temperature; lower values (~205 MPa) may apply to specific processing states. |
| Elongation (A5%) | 40–60% | Room temperature; higher elongation in annealed condition. |
| Hardness | 80–100 HRB | Rockwell B scale; hardness increases with cold working. |
| Elastic Modulus | 205–208 GPa | Linear elasticity range at room temperature. |
| Shear Modulus | 79 GPa | Typical value for solid solution-treated material. |
| Impact Toughness | ≥100 J (Charpy V-notch) | Room temperature; tested per ASTM A370. |
| High-Temperature Strength | 200–300 MPa (Yield, 600°C) | Retains strength at elevated temperatures; dependent on exposure time. |
| Creep Strength | 80 MPa (1000 hours at 600°C) | Stress rupture tested per ASTM E139. |
| Fatigue Strength | ~300 MPa (10⁷ cycles, R = -1) | Rotating beam fatigue tested at room temperature. |
Application Fields For Hastelloy C276 Rods
Chemical Processing Equipment
(Reactors, heat exchangers, valves, piping systems in aggressive acid/chloride environments)
Flue Gas Desulfurization (FGD) Systems
(Scrubbers, ductwork, and components in power plants/industrial boilers exposed to sulfuric acid)
Oil & Gas Industry
(Downhole tubing, offshore platforms, separators for sour gas/high-sulfur crude applications)
Pharmaceutical & Fine Chemical Manufacturing
(Reactors, distillation columns handling concentrated acids, alkalis, or solvents)
Nuclear Industry
(Nuclear fuel reprocessing equipment, radioactive waste containment systems)
Marine Engineering
(Seawater desalination plants, marine pump shafts, and chloride-resistant components)
Pollution Control & Waste Treatment
(Scrubbers, incinerators, and wastewater treatment systems for corrosive emissions)
High-Temperature Industrial Furnaces
(Burner nozzles, radiant tubes, and heat treatment fixtures up to 1093°C)
Q&A for Hastelloy C276 Rod
Q1: What are the key chemical components of Hastelloy C276 rods?
A: Hastelloy C276 rods primarily consist of Ni (balance), Cr (14.5–16.5%), Mo (15–17%), Fe (4–7%), and W (3–4.5%), with minimal impurities like C (≤0.01%) and Si (≤0.08%)
Q2: What is the typical tensile strength of Hastelloy C276 rods?
A: The tensile strength ranges from 690–760 MPa (room temperature, annealed condition), with yield strength 283–350 MPa, ensuring high mechanical stress resistance
Q3: Which industries commonly use Hastelloy C276 rods?
A: Key applications include chemical processing, flue gas desulfurization (FGD), oil & gas, nuclear engineering, and marine systems due to corrosion resistance in acidic/chloride environments