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Cladding of Metals

Nb Clad Steel Stainless steel refractory metal clad steel plate

Item No.: TR-Nb/Steel refractory metal clad plate
Nb/ Steel refractory metal composite plate is a kind of metal composite plate material with extremely high-quality properties.
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Description

What is Nb/Steel refractory metal clad plate:
Niobium/steel composite plate is a composite material composed of niobium and steel. Niobium is a rare metal with high strength, high hardness and high corrosion resistance, and is widely used in the manufacture of various high-tech equipment and tools. Steel is an important metal material, which has high strength, high toughness, high wear resistance and excellent performance of the two materials of niobium/steel composite plate, and can be widely used in aerospace, petrochemical, shipbuilding and power electronics and other fields. It is widely used in machinery, construction, automobile, electronics and other fields.

Category

Parameter

Standard Specification

Base Material

Material Type

Stainless Steel

 

Steel Grade

304L/316L/321/904L

Cladding Material

Material

Pure Niobium

 

Nb Purity

≥99.9%

Dimensions

Total Thickness

3-50mm

 

Nb Layer Thickness

0.8-3mm

 

Steel Layer Thickness

Balance

 

Standard Width

1000-3000mm

 

Standard Length

2000-6000mm

Bonding Properties

Bonding Method

Explosion Welding

 

Bond Strength

≥200 MPa

 

Bond Integrity

≥99%

 

Shear Strength

≥140 MPa

Mechanical Properties

Nb Tensile Strength

≥170 MPa

 

Nb Elongation

≥25%

 

Nb Hardness

≤80 HRB

 

SS Tensile Strength

≥515 MPa

Surface Quality

Surface Finish

Ra ≤3.2μm

 

Flatness

≤3mm/m

 

Visual Inspection

No cracks, blisters, or delamination

Testing Requirements

Ultrasonic Test

100% scanning

 

Dye Penetrant Test

Required for Nb surface

 

Bend Test

180° without separation

 

Chemical Analysis

Required

 

PMI Test

Required

Operating Parameters

Max Temperature

400°C

 

Chemical Resistance

Excellent against hot acids

 

Service Life

>20 years under normal conditions

Standard Compliance

Manufacturing

ASTM B898/ASTM B393

 

Quality System

ISO 9001

 

Pressure Vessel Code

ASME Section VIII

Applications

Industry Use

- Chemical Processing

 

 

- Acid Production

 

 

- Hot Corrosive Environments

 

 

 

Physical Properties

Density (Nb)

8.57 g/cm³

 

Melting Point (Nb)

2,477°C

 

Thermal Conductivity

53.7 W/(m·K)

 

Advantage/Characteristics of Nb/Steel refractory metal clad plate:
Niobium/steel composite plate has excellent mechanical properties, such as high specific strength, high tensile strength and high toughness, and can also maintain the high toughness and wear resistance of steel. In addition, the niobium/steel clad plate also has excellent corrosion resistance and can be used in high temperature, high pressure and corrosive media for a long time. Therefore, the niobium/steel-clad plate has become an important material and is widely used in various fields.

Application of Nb/Steel refractory metal clad plate:
Niobium/steel composite plate has excellent mechanical properties and corrosion resistance, so it is widely used in aerospace, petrochemical, shipbuilding, power electronics and other fields.
In the aerospace field, niobium/steel-clad plates are used to manufacture high-temperature structural parts, such as engine nozzles, guides and combustion chambers. Due to its high temperature and corrosive environment, it needs to have high oxidation resistance and corrosion resistance. Niobium/steel-clad plates can meet these requirements and are therefore widely used in these fields.
In the petrochemical industry, niobium/steel composite plates are used to manufacture high-temperature pipes, valves, pump casings and other equipment. These devices need to withstand high temperatures and corrosive media, and the niobium/steel-clad plate has excellent corrosion resistance and high oxidation resistance, which can meet these requirements.
In the field of ship manufacturing, niobium/steel composite plates are used to manufacture important parts such as hulls, plates, sterns and propellers of ships. These parts need to withstand high pressure and corrosive media, and the niobium/steel-clad plate has excellent corrosion resistance and high strength and toughness, which can meet these requirements.

 


Application of Nb/Steel refractory metal clad plate


Grade of Nb/Steel refractory metal clad plate:
The grade of Nb/Steel refractory metal clad plate is Nb&Nb alloy/all kinds of Steel.

Standard of Nb/Steel refractory metal clad plate:
ASTM B898.

Package of Nb/Steel refractory metal clad plate:
According to product characteristics and customer needs.

Remark of Nb/Steel refractory metal clad plate:
Please provide detailed technical requirements to facilitate communication and determine the solution.

Nb/Steel refractory metal clad plate supplier-TRUNNANO:
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality clad plates, clad rods, clad tubes, etc. If you are looking for a high-quality Nb/Steel refractory metal-clad plate, please feel free to contact us and send an inquiry. 

 

FAQs of Nb/Steel Refractory Metal Clad Plate

Q: What is Nb/Steel refractory metal clad plate used for?

A: Nb/Steel clad plates, which combine a niobium (Nb) layer with a steel substrate, are employed in various industries where materials must withstand extreme conditions. The niobium surface provides exceptional resistance to high temperatures and corrosive environments, making these composite materials ideal for use in chemical processing, petrochemical plants, power generation facilities, and nuclear applications. They can be found in heat exchangers, reactors, piping systems, and pressure vessels, offering a durable solution that combines the strength of steel with the corrosion-resistant properties of niobium.


Q: How does Nb/Steel clad plate perform under high-temperature conditions?

A: Nb/Steel clad plates excel in high-temperature applications due to the inherent properties of niobium. Niobium has a very high melting point, around 2468°C (4474°F), which means it retains its mechanical integrity and protective qualities even at elevated temperatures where many other metals would fail. This makes Nb/Steel clad plates suitable for environments like furnaces, combustion chambers, and areas exposed to molten metals or intense heat processes. The combination ensures that the clad plate maintains its shape and functionality without undergoing significant deformation or oxidation, ensuring long-term reliability.


Q: Is Nb/Steel clad plate resistant to corrosion?

A: Yes, Nb/Steel clad plates offer outstanding corrosion resistance. Niobium forms a stable oxide layer on its surface when exposed to air, which acts as a protective barrier against corrosive substances. This natural oxide film is highly resistant to acids, alkalis, and other aggressive chemicals, thereby preventing further oxidation of the underlying material. In environments where corrosive media are present, such as in the handling of sulfuric acid, hydrochloric acid, and organic acids, the niobium layer effectively shields the steel core from degradation. This characteristic extends the service life of equipment and reduces maintenance costs associated with corrosion damage.


Q: Can Nb/Steel clad plate be fabricated into complex shapes?

A: Indeed, Nb/Steel clad plates can be fabricated into intricate and complex shapes necessary for specialized industrial components. The manufacturing process allows for the creation of custom designs that meet specific engineering requirements while maintaining the beneficial properties of both materials. Techniques such as rolling, forming, cutting, and welding can be applied, although care must be taken during fabrication to ensure that the bond between the niobium and steel layers remains intact. Manufacturers often provide detailed guidelines to optimize the fabrication process and achieve the desired outcomes without compromising the performance of the final product. Proper handling and adherence to recommended practices will result in durable and functionally effective parts that leverage the best attributes of niobium and steel.


 

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