ASTM B351 Zr-2 (Zircaloy-2)/R60802 Nuclear Grade Zirconium Alloy Rod

Origin: Baoji, Shaanxi, China
Brand: FRL Metal
Name: Nuclear-grade Zirconium Alloy Rod
Grade: Zr-2 (Zircaloy-2)/R60802
Density: 6.51g/cm³
Diameter: Φ3–60mm
Length: 1000-3000mm (customizable)
Standards: ASTM, DIN, EN
Production Process: Hot rolling, cold rolling, annealing
Surface Treatment: Pickling/Bright finish
Certification: ISO9001
Delivery Time: 5-7 days
Payment Method: Wire Transfer (T/T)
Packaging: Standard Packaging

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Product Description

Baoji Freelong New Material Technology Development Co., Ltd. loated in Baoji City--China's Titanium Valley,we are mainly doing Zirconium,Titanium,Nickel,Niobium,Tantalum etc metal material and other alloy's produce,OEM and Sales.and also exporting the goods what we make. we have a lot of trustful clients and partner.and also we were authority by some firms.At present,we were build our relationship with Australia,Korea,German,US,UK,Malaysia,AZ,Middle East,Taiwan,Etc. Our company always take the quality and service as our responsibility,We always get close even match the quality what our customer wanted and as for quality,we never say no and no reason for quality failure.

Zr-2 (Zircaloy-2)/R60802 Product Introduction

Zr-2 (Zircaloy-2 alloy) is a nuclear-grade zirconium alloy that is a milestone in the history of nuclear industry development. It was originally developed by the United States in the 1950s for naval nuclear reactors (nuclear submarines) and early commercial nuclear power plants, and it remains the mainstay core structural material of boiling water reactors (BWRs) to this day.

Zr-2 (Zircaloy-2, UNS R60802) is a typical nuclear-grade zirconium-tin alloy, with tin (Sn), iron (Fe), chromium (Cr), and nickel (Ni) as its main alloying elements. Due to its superior nuclear physics properties and corrosion-resistant structural characteristics, it is widely used in core components of water-cooled nuclear reactors (especially boiling water reactors, BWRs), such as cladding tubes, grids, and structural bars for fuel assemblies.

Production specifications and application technologies

Common Diameter Range (Φ)	Typical Surfaces and Tolerances	Core Machining Finished Products	Corresponding Core Application Range
3.0 ~ 8.0 mm	Grinding Finish (h7-h9)	Miniature Pins, Positioning Bolts, Instrument Plugs	Positioning Grid Locking, Core Measurement Instrument System
9.0 ~ 20.0 mm	Grinding Finish (h8-h9)	Fuel Rod Top Caps, Bottom Caps, Water Rod Connectors	Precision Welding and Sealing of Boiling Water Reactor (BWR) Fuel Rods
25.0 ~ 100+ mm	Peeled or Forged Surface	Connecting Flanges, Thick-Walled Sleeves, Irregularly Shaped Load-Bearing Components	Fuel Assembly Upper and Lower Pipe Seats, Control Rod Drive Systems, Heavy Water Reactor Connectors

Sample display

Chemical composition

Key Elements

Fe+Cr+Ni

impurity elements%（≤）

Mass Fraction (wt%)

Balance

1.7≤

0.2≤

0.15≤

0.08≤

0.38≤

0.01

0.00005

0.0025

0.0065

0.09-0.16

0.027

Mechanical properties

Mechanical properties	Annealed state（M）	Cold-worked + stress-relieved state(Y)
Tensile Strength	≥450MPa	≥515MPa
Yield Strength	≥240MPa	≥380MPa
Elongation in 2 in. or 50mm	≥18%	≥12%

Key Features

1. Extremely Low Thermal Neutron Absorption Cross Section: A key physical property of zirconium is its extremely low thermal neutron cross section.

Zr-2 exhibits strictly controlled levels of strong neutron-absorbing impurities (such as hafnium Hf, typically limited to below tens of ppm).

Significance: This allows neutrons to efficiently penetrate the cladding, maintaining the chain reaction, significantly improving nuclear fuel utilization, and reducing the cost of uranium enrichment.

2. Precise Control of Alloy Microstructure

Through special β-quenching and subsequent hot working processes, uniformly distributed second-phase particles (SPPs, mainly Zr2(Fe, Ni) and Zr(Fe, Cr)2) are formed within the alloy.

These fine second-phase particles play a decisive role in controlling the alloy's corrosion resistance and hydrogen absorption resistance during service.

3. Excellent Mechanical and Machining Properties

High Strength and Low Creep: At nuclear reactor operating temperatures (approximately 300°C), Zr-2 exhibits excellent tensile strength, yield strength, and creep resistance, effectively withstanding the mechanical loads and thermal stresses of fuel assemblies.

Anisotropy: Zirconium has a hexagonal close-packed (HCP) crystal structure. Its texture significantly affects the mechanical properties of the bars, and precise orientation control can be achieved during production through cold rolling and annealing processes.

about Us

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Why Choose Us?

With over a decade of industry experience, Baoji Furuilong is your trusted partner for raw material processing. Backed by a team of expert technical consultants and skilled machinists, we specialize in the R&D and manufacturing of processed components across a wide range of materials. We are committed to excellence, ensuring the perfect delivery of your products.

Our Strengths:

ISO9001-certified quality management system

Advanced CNC machining and heat treatment capabilities

Global reach spanning over 50 countries

Comprehensive professional support and consultation

Customized project management for specialized applications

Fast shipping and ample inventory