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Hastelloy C276 / 2.4819 Alloy Nickel Alloy Round Bar Diameter 30mm 40mm 50mm

China Hastelloy C276 / 2.4819 Alloy Nickel Alloy Round Bar Diameter 30mm 40mm 50mm

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Hastelloy C276 / 2.4819 Alloy Nickel Alloy Round Bar Diameter 30mm 40mm 50mm

MOQ： 500 kgs
Price： 41-45 USD/Kg
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Payment Terms	L/C, T/T, Western Union
Supply Ability	3 Ton per week
Delivery Time	5 - 12 days based on the quantity
Packaging Details	standard packing for export
Products	Nickel Alloy Plate
Grade	C276
Diameter	6 - 350mm
Length	custom cutting any length as request
Standard	ASTM EN
Service	Cutting
Loading Port	Shanghai Port
Surface	black , bright
Brand Name	DELTA
Model Number	C276 / 2.4819
Certification	ISO
Place of Origin	China

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Product Specification


Payment Terms	L/C, T/T, Western Union	Supply Ability	3 Ton per week
Delivery Time	5 - 12 days based on the quantity	Packaging Details	standard packing for export
Products	Nickel Alloy Plate	Grade	C276
Diameter	6 - 350mm	Length	custom cutting any length as request
Standard	ASTM EN	Service	Cutting
Loading Port	Shanghai Port	Surface	black , bright
Brand Name	DELTA	Model Number	C276 / 2.4819
Certification	ISO	Place of Origin	China
High Light	Hastelloy C276 nickel alloy round bar ，Nickel alloy round bar 30mm to 100mm ，2.4819 alloy round bar with warranty

Hastelloy C276 / 2.4819 Alloy Nickel Alloy Round Bar Diameter 30mm 40mm 50mm 60mm 80mm 100mm

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, Polishing
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 / 2.4819 Alloy Nickel Alloy Round Bar Diameter 30mm 40mm 50mm 60mm 80mm 100mm

Hastelloy C276 (UNS N10276, W. No. 2.4819) is a premium nickel-molybdenum-chromium alloy renowned for its exceptional corrosion resistance in aggressive environments, making its round bar form a critical component in industries requiring durability and reliability. Below is a comprehensive overview of its key parameters, standards, properties, applications, and equivalent grades, with a focus on the commonly used diameters (30mm, 40mm, 50mm, 60mm, 80mm, 100mm).

1. Chemical Composition (Key Parameters)

The superior performance of Hastelloy C276 stems from its precisely balanced chemical composition, which enhances corrosion resistance and mechanical strength. The typical composition (per ASTM B574 standard) is as follows:

Element	Content Range (%)	Function
Nickel (Ni)	≥ 57	Base metal; provides structural stability and resistance to chloride stress corrosion cracking
Molybdenum (Mo)	15.0 - 17.0	Enhances resistance to pitting, crevice corrosion, and reducing acids (e.g., sulfuric acid)
Chromium (Cr)	14.5 - 16.5	Improves oxidation resistance and resistance to oxidizing acids (e.g., nitric acid)
Iron (Fe)	4.0 - 7.0	Optimizes mechanical properties and processability (e.g., hot working)
Tungsten (W)	3.0 - 4.5	Boosts pitting corrosion resistance, especially in chloride-rich environments
Cobalt (Co)	≤ 2.5	Controls alloy stability and minimizes intermetallic phase formation
Carbon (C)	≤ 0.01	Reduces carbide precipitation, preventing intergranular corrosion
Silicon (Si)	≤ 0.08	Limits oxide formation and improves casting quality
Manganese (Mn)	≤ 1.0	Aids in deoxidation during manufacturing without compromising corrosion resistance

2. Manufacturing & Material Standards

Hastelloy C276 round bars (30mm-100mm diameter) are produced and inspected in compliance with international standards to ensure consistency and quality. The most widely adopted standards include:

Standard Code	Issuing Body	Scope of Application
ASTM B574	ASTM International	Specification for nickel-chromium-molybdenum-columbium alloys (including C276) round bars, rods, and wire
ASME SB574	ASME International	Boiler and pressure vessel code-compliant version of ASTM B574 (for high-pressure applications)
DIN EN 10095	DIN (Germany)	European standard for nickel and nickel alloys; covers 2.4819 round bars
JIS H4552	JIS (Japan)	Japanese industrial standard for nickel alloy bars, including C276 equivalents
GB/T 2054	GB (China)	National standard for nickel and nickel alloy bars; applicable to C276 round bars in domestic projects

Note: For the 30mm-100mm diameter range, bars are typically supplied in hot-rolled or cold-finished conditions. Hot-rolled bars (for larger diameters like 80mm-100mm) offer better ductility, while cold-finished bars (for 30mm-60mm) provide tighter dimensional tolerance (e.g., h9/h10) and smoother surface finish (Ra ≤ 1.6μm).

3. Mechanical & Corrosion Properties

3.1 Mechanical Properties (At Room Temperature, Annealed Condition)

The mechanical performance of Hastelloy C276 round bars (30mm-100mm) meets the requirements of ASTM B574, ensuring suitability for load-bearing and structural applications:

Property	Minimum Requirement	Test Method
Tensile Strength (σb)	795 MPa	ASTM E8/E8M
Yield Strength (σ0.2)	379 MPa	ASTM E8/E8M
Elongation (δ)	40%	ASTM E8/E8M
Hardness (HB)	≤ 210	ASTM E10

Key Advantage: The alloy retains excellent mechanical properties even after long-term exposure to high temperatures (up to 1093°C/2000°F), with tensile strength remaining above 400 MPa at 650°C.

3.2 Corrosion Resistance (Core Advantage)

Hastelloy C276 is widely recognized as one of the most corrosion-resistant nickel alloys, particularly in harsh environments:

Chloride Environments: Resists pitting, crevice corrosion, and stress corrosion cracking (SCC) in seawater, brines, and chloride-based solvents—critical for marine and offshore applications.
Acid Resistance: Performs well in both oxidizing acids (e.g., 50% nitric acid at 60°C) and reducing acids (e.g., 98% sulfuric acid at 100°C); also tolerates mixed acids (e.g., sulfuric + nitric acid).
Oxidation & Sulfidation: Withstands continuous exposure to air at 1093°C (short-term) and 871°C (long-term) without significant scaling; resistant to sulfur-containing gases (e.g., H₂S) in petrochemical processes.
Low-Temperature Stability: No embrittlement at cryogenic temperatures (down to -269°C), making it suitable for LNG (liquefied natural gas) equipment.

4. Applications of 30mm-100mm Round Bars

The 30mm-100mm diameter range of Hastelloy C276 round bars is versatile, catering to medium-to-large structural and component needs across industries. Typical applications include:

Petrochemical & Refining: Manifolds, valve stems, pump shafts, and reactor internals (resists sour gas, crude oil, and acidic catalysts).
Chemical Processing: Heat exchanger tubesheets, agitator shafts, and storage tank nozzles (handles aggressive chemicals like acetic acid, phosphoric acid, and chlorine).
Marine & Offshore: Propeller shafts, seawater cooling system components, and subsea pipeline connectors (withstands seawater corrosion and biofouling).
Power Generation: Boiler tubes, turbine blades, and flue gas desulfurization (FGD) systems (resists high-temperature oxidation and sulfur dioxide).
Aerospace & Defense: Engine components and rocket fuel lines (tolerates extreme temperatures and corrosive propellants).
Pharmaceutical & Food Processing: Equipment shafts and mixing blades (complies with hygiene standards and resists cleaning agents like nitric acid).

5. Equivalent Grades

Hastelloy C276 is marketed under different designations globally, but these grades share identical chemical composition and performance. The key equivalents are:

Nomenclature System	Grade Designation	Country/Region
UNS (Unified Numbering System)	N10276	USA/Global
Werkstoff Number	2.4819	Germany/Europe
DIN	NiMo16Cr15W	Germany
EN	NiCr21Mo14W	Europe
JIS	NW276	Japan
GB (Chinese National Standard)	NS3304	China
BS (British Standard)	NA15	UK

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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...

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