Product Series & Specifications

Main Forms:

Round Bars/Rods: The most common form. Diameter (φ):  6mm - 180mm.

Rectangular Bars: For specific structural or processing needs.

Square Bars: Used for fasteners, shafts, etc.

Hexagonal Bars: Used for fasteners requiring wrenching, etc.

Hollow Bars/Rods: For weight reduction or components requiring internal passages.

Custom Shapes: Unique bar shapes can be provided according to customer drawings.

Size Range:

Diameter/Side Length: Available in a range from  φ6mm to  φ180mm.

Length: Up to L≤12000mm (12 meters); customizable as required.

Applicable Standards:

Our production and testing processes strictly follow international standards to ensure reliability in critical industrial environments:

• Product Standard: ASTM B550 / ASME SB-550

  Description: The standard specification for Zirconium and Zirconium Alloy Bar and Wire. It covers chemical requirements, tensile properties, and dimensional tolerances (diameter, out-of-roundness, and length).

• Raw Material Standard: ASTM B494 / B494M

  Description: Standard specification for Primary Zirconium (Sponge). This ensures the purity of the zirconium source used in our vacuum arc remelting (VAR) process.

• Forging Standard: ASTM B493 / B493M

  Description: Standard specification for Zirconium Forgings. This applies to bars produced via forging and heat treatment, ensuring a dense grain structure and superior mechanical consistency.

Surface Finishes:

We offer surface finishes including black forged, machined (peeled), ground, polished, or pickled. We provide customized surface treatments to meet specific requirements for dimensional accuracy, surface roughness (Ra), or aesthetic appearance.

Manufacturing Process & Quality Control

High-Purity Melting & Bar Forming: Utilizing advanced vacuum melting (VAR/EB Melting) technology to produce high-purity zirconium ingots. Subsequently, zirconium bars are manufactured through rigorously controlled forging, hot rolling, and precision cold drawing and/or cold rolling processes, ensuring their density, uniformity, and superior mechanical properties.

Precision Heat Treatment: Implementing precise annealing treatments to relieve processing stress, optimize grain structure, and ensure the material's ductility, mechanical properties, and long-term stability in use.

High-Precision Machining: Offering turning, grinding, polishing, and other machining services to ensure precise bar dimensions and surface finish, meeting high-precision application demands.

Rigorous Quality Testing (INSPECTIONS):

Raw Material Inspection: Strict chemical composition analysis (Spectro Test), including control over trace impurities.

Internal Flaw Detection: Ultrasonic Testing (UT) and Eddy Current Testing (ET) are performed on finished bars to ensure the absence of internal cracks, inclusions, porosity, and other defects.

Geometric Dimensions & Visual Inspection: Precise measurement of diameter, length, straightness, ovality, and high-precision visual and automated inspection for surface defects (e.g., scratches, indentations).

Pressure Testing: Hydrostatic testing or pneumatic testing.

Mechanical Properties Testing: Tensile Test (Elongation, Yield Strength, Tensile Strength), Hardness Test, Impact Test, Bend Test, etc.

Metallographic Analysis: Evaluation of grain size and microstructure to ensure conformity with standards and final application requirements.

Corrosion Testing: Corrosion tests in specific corrosive media (e.g., ASTM G28, G48) are performed to verify durability in harsh chemical environments.

Nuclear-Grade Performance Testing:  Low thermal neutron capture cross-section testing can be performed.

Traceability: Comprehensive material reports are provided, ensuring complete traceability from raw material to final bar/rod, with support for independent third-party certification.

Why Choose Our Zirconium Bars / Rods?

• 19+ Years of Expertise: Specialized in the R&D and manufacturing of high-quality zirconium products for over 19 years. We possess deep technical expertise and rigorous quality control experience in handling high-purity materials for extreme corrosion environments and precision engineering.

• Advanced Melting & Processing: Utilizing state-of-the-art Vacuum Arc Remelting (VAR) or Electron Beam (EB) Melting to ensure high-purity, defect-free zirconium ingots. Our precision forging, hot rolling, and cold drawing processes guarantee an optimized grain structure and superior mechanical performance.

• Rigorous Quality Assurance: All shipments include a Mill Test Certificate (MTC). We also facilitate independent third-party inspections (e.g., TUV, SGS, BV, Lloyd's Register) upon request to ensure strict compliance with ASTM/ASME standards.

• ISO 9001:2015 Certified: Our facility strictly adheres to international quality management systems. From raw material procurement to final ultrasonic testing (UT), every step is traceable and optimized for excellence.

• Customized Solutions: Beyond standard ASTM grades (R60702, R60705, etc.), we provide customized zirconium bars/rods based on your drawings—including special purity levels, unique dimensions, and specific surface conditions.

• Flexible MOQ & Rapid Delivery: We maintain a flexible procurement policy with no strict Minimum Order Quantity (MOQ) for stock items. A strategic inventory of raw materials and common sizes allows us to offer industry-leading lead times.

• Sample Support: Evaluation samples are available for qualified projects. To ensure efficiency, customers are responsible for the logistics/shipping costs according to our standard company policy.