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Hastelloy C276 / Alloy 2.4819 Nickel Alloy Round Bar / Disc / Circle Hot Rolled and Forged C276 Round Rod
Quick Informations
Grade
Hastelloy C276 / 2.4819
Shape
Round Bar
Diameter
6.0 - 350mm
Type
Hot rolled , forged
Length
Custom Cutting any length as request
Certificate
EN 10204-3.1
More Specification Informations
Products Name
Hastelloy C276 Round Bar / Rod
Diameter
6.0 - 350mm
Length
custom cutting any length as request
Surface
Black , bright
Brand
DELTA
Service
cutting
MOQ
2 Kgs
Other Type
round bar, strip,coil,pipe.sheet, plate,wire.etc
Packing
waterproof paper and wooden pallets, wooden box
Loading Port
Shanghai Port
Price term
EXW,FOB,CIF,CFR
Deliver time
within 12 days
Hastelloy C276 / Alloy 2.4819 Nickel Alloy Round Bar / Disc / Circle Hot Rolled and Forged C276 Round Rod
Hastelloy C276 (UNS N10276, W. Nr. 2.4819) is a premium nickel-molybdenum-chromium alloy renowned for its exceptional corrosion resistance in harsh environments, particularly against oxidizing and reducing media. The hot-rolled and forged round bars, discs, and circles of this alloy leverage optimized manufacturing processes to enhance mechanical strength, structural integrity, and dimensional precision, making them ideal for critical industrial applications where reliability and durability are non-negotiable.
1. Chemical Composition (Key Parameters)
The superior performance of Hastelloy C276 stems from its precisely controlled chemical composition, which balances nickel (the base element) with alloying elements to resist corrosion and maintain mechanical stability. Below is the typical composition per international standards:
Element
Content Range (%)
Function
Nickel (Ni)
54.0 - 60.0
Base metal; provides ductility, toughness, and resistance to stress corrosion cracking
Chromium (Cr)
14.5 - 16.5
Enhances oxidation resistance and resistance to sulfuric/nitric acid
Molybdenum (Mo)
15.0 - 17.0
Critical for resistance to reducing media (e.g., hydrochloric acid) and pitting corrosion
Tungsten (W)
3.0 - 4.5
Complements molybdenum to boost resistance to crevice corrosion and localized attack
Iron (Fe)
≤ 5.0
Improves workability during hot rolling/forging without compromising corrosion resistance
Carbon (C)
≤ 0.010
Minimized to prevent carbide precipitation (avoids intergranular corrosion at high temperatures)
Silicon (Si)
≤ 0.08
Controls oxide formation and enhances casting/forging quality
Manganese (Mn)
≤ 1.0
Aids in deoxidation during manufacturing; maintains alloy ductility
Phosphorus (P)
≤ 0.040
Restricted to avoid brittleness and reduce corrosion risks
Sulfur (S)
≤ 0.030
Minimized to prevent hot cracking during forging and improve corrosion resistance
2. Mechanical & Physical Properties
Hot-rolled and forged Hastelloy C276 round bars exhibit enhanced mechanical properties compared to cast or cold-worked variants, thanks to grain refinement during thermal processing.
2.1 Mechanical Properties (Typical Values for Hot-Rolled/Forged Bars, Annealed Condition)
Property
Unit
Value (Annealed, 25°C/77°F)
Tensile Strength (UTS)
MPa
≥ 790
Yield Strength (0.2% Offset)
MPa
≥ 380
Elongation (in 50mm)
%
≥ 40
Hardness (Brinell, HB)
-
≤ 210
Impact Toughness (Charpy V-Notch)
J
≥ 100 (at 25°C)
2.2 Physical Properties
Property
Unit
Value (at 25°C/77°F unless noted)
Density
g/cm³
8.89
Melting Range
°C
1325 - 1370
Thermal Conductivity
W/(m·K)
11.8 (at 100°C)
Coefficient of Thermal Expansion (CTE)
μm/(m·K)
12.4 (20 - 100°C)
Electrical Resistivity
Ω·mm²/m
1.37
Modulus of Elasticity
GPa
205
3. Manufacturing Process: Hot-Rolled vs. Forged
The hot-rolled and forged processes are critical to optimizing the performance of Hastelloy C276 round bars:
Hot-Rolled Round Bars: Produced by heating the alloy billet to 1150 - 1250°C (above its recrystallization temperature) and rolling it through successive dies to achieve the desired diameter (typically 6mm - 300mm). This process improves ductility, refines grain structure, and ensures uniform dimensional accuracy. Hot-rolled bars are cost-effective for standard applications.
Forged Round Bars/Discs/Circles: Manufactured by applying high pressure to heated billets (1100 - 1200°C) using presses or hammers, shaping them into round rods, discs (thickness: 10mm - 500mm; diameter: 50mm - 1000mm), or circles. Forging eliminates internal defects (e.g., porosity), enhances mechanical strength (especially impact toughness), and aligns grain flow with the part’s stress direction. Forged products are preferred for high-pressure, high-temperature (HPHT) applications.
4. International Standards & Specifications
Hastelloy C276 round bars, discs, and circles comply with globally recognized standards to ensure consistency and quality:
Standard Organization
Standard Number
Application Scope
ASTM International
ASTM B574
Nickel alloy rod, bar, and wire (primary standard for hot-rolled/forged bars)
ASTM International
ASTM B622
Nickel alloy plate, sheet, and strip (reference for discs/circles)
ASME
ASME SB574
Boiler and pressure vessel code (for HPHT applications)
DIN (Germany)
DIN EN 10095
Heat-resistant steels and nickel alloys (includes 2.4819)
ISO
ISO 9723
Nickel and nickel alloys — Rods and bars
JIS (Japan)
JIS H4551
Nickel and nickel alloy bars
5. Equivalent Grades
Hastelloy C276 is marketed under different designations worldwide, depending on regional standards. Below are its key equivalent grades:
Regional System
Grade Designation
Corresponding Standard
UNS (USA)
N10276
ASTM B574, ASME SB574
W. Nr. (Germany)
2.4819
DIN EN 10095, DIN 17750
BS (UK)
NA 44
BS 3074 (Part 3)
JIS (Japan)
NW 276
JIS H4551
GOST (Russia)
KhN68MVTYu
GOST 9668
EN (Europe)
NiCr21Mo14W
EN 10095
6. Key Performance Advantages
Hastelloy C276 round bars stand out for their unique combination of properties, making them superior to many other nickel alloys:
Exceptional Corrosion Resistance: Resists both oxidizing (e.g., nitric acid, seawater) and reducing (e.g., hydrochloric acid, sulfuric acid) media. It also withstands pitting, crevice corrosion, and stress corrosion cracking (SCC) in chloride-rich environments.
High-Temperature Stability: Maintains mechanical strength and corrosion resistance up to 1093°C (2000°F), making it suitable for high-heat applications (e.g., furnace components).
Excellent Fabricability: Hot-rolled and forged variants offer good ductility, allowing for bending, welding, and machining (with carbide tools) to meet custom part requirements.
Low Carbide Precipitation: The low carbon content minimizes the formation of chromium carbides during welding or heat treatment, eliminating intergranular corrosion risks.
7. Applications
Hastelloy C276 round bars, discs, and circles are widely used in industries where corrosion resistance and high-temperature performance are critical:
Chemical Processing: Reactors, heat exchangers, valves, and pump shafts (for handling acids, solvents, and corrosive slurries).
Oil & Gas: Downhole components, wellhead equipment, and pipeline systems (resists sour gas, brines, and chloride-induced corrosion).
Pharmaceutical & Food Processing: Vessels, mixers, and sanitary fittings (complies with FDA standards; resists cleaning agents and sterilization processes).
Aerospace & Defense: Jet engine combustion chambers, turbine blades, and missile components (withstands high heat and aggressive fuels).
Environmental Engineering: Flue gas desulfurization (FGD) systems, wastewater treatment equipment, and incinerator parts (resists acidic flue gases and toxic chemicals).
Power Generation: Boiler tubes, steam turbines, and nuclear plant components (handles high pressure, high temperature, and coolant corrosion).
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...
