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
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Hastelloy C276 High Temp Rods Chloride Sulfuric Acid Resistant Alloy Images
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