China Customized ASTM B 394 Niobium Seamless Tube Wholesale Suppliers Factory

Product Introduction

The ASTM B 394 Niobium Seamless Tube manufactured by Shaanxi Chuanghui Daye Metal Material Co., Ltd. is a high-purity niobium product designed in strict accordance with ASTM B394 standards. It features excellent corrosion resistance, outstanding ductility, and superior strength under high temperatures. With precision melting, forging, and rolling technology, the tube ensures stable mechanical properties and uniform microstructure. The ASTM B 394 Niobium Seamless Tube is widely used in chemical processing, superconducting equipment, electronic components, and aerospace systems requiring exceptional reliability and performance.

Chdymetal can offer niobium seamless tube with various purities and sizes. Niobium seamless tube drawn from high-purity niobium rods, They have excellent properties such as high melting point, high strength, high electrical conductivity, high superconductivity, and high corrosion resistance.

Product	ASTM B 394 Niobium seamless tube
Size	OD3-100wall thickness 0.5-5mmLength200-6000mm
Material	Pure niobium and niobium alloy
Grade	RO4200, RO4210, R04251,R04261
Standard	ASTM B394
Purity	> 99.95% or 99.9%
Density	8.57g/cm3
Type	Seamless and welded
Characteristic	Melting point : 2468℃ / Boiling point : 4744℃
Product Features	Excellent Corrosion Resistance , Good resistance to effect of heat
Packing	Plastic foam inside, wooden box outside
Delivery time	Stock size within 1-5 days, normal production time about 15 days
Payment terms	30%TT in advance,70% balance before shipment

Chemical composition

Main elements(%)	Impurities (Maximum %)
Nb	Fe	Si	Ni	W	Mo	Ti	Ta	O	C	H	N
Remainder	0.004	0.004	0.002	0.005	0.005	0.002	0.07	0.015	0.0040	0.0015	0.003
Remainder	0.01	0.01	0.005	0.02	0.01	0.004	0.10	0.02	0.01	0.0015	0.01

ASTM B 394 Niobium seamless tube application

Niobium seamless tubes are widely used in the fields of chemistry, electronics, aviation and aerospace due to their high melting point, corrosion resistance and good cold working performance.

Why choose us

1. Rich experience in metal industry and we can give you professional advice when you choose in your application

2. Stock products with various grade and size, we can arrange quick delivery.

3. We offer FOB, CFR, CIF, and door to door delivery prices. We suggest you to do deal for shipping which will be quite economical

ASTM B 394 Niobium Seamless Tube

Application Advantages

The ASTM B 394 Niobium Seamless Tube provides multiple performance advantages across various industries:

Excellent Corrosion Resistance: Highly resistant to acids and alkalis, suitable for harsh chemical environments.
Superior High-Temperature Strength: Maintains mechanical stability in high thermal conditions.
Exceptional Purity and Structural Uniformity: Ensures consistent performance and long service life.
Excellent Fabrication and Weldability: Easily machined and formed for complex designs.
Outstanding Electrical and Thermal Conductivity: Ideal for electronics and superconducting applications.

Be used in a wide range of industries.

Electronic devices

Medical implants

Steel industry

Chemical Processing

Aerospace and Defense

Energy and Environmental Engineering

Manufacturing & Process Flow

The production of the ASTM B 394 Niobium Seamless Tube follows a tightly controlled process to guarantee superior material integrity:

Raw Material Selection: High-purity niobium is carefully sourced and tested.
Vacuum Electron Beam Melting: Removes impurities to achieve excellent chemical homogeneity.
Hot Forging and Rolling: Enhances strength and ensures a fine, uniform grain structure.
Cold Drawing Process: Achieves accurate dimensional tolerances and surface smoothness.
Annealing Treatment: Improves ductility and refines mechanical properties.
Final Machining & Finishing: Guarantees a smooth internal and external surface.
Inspection & Certification: Conducted under ASTM B394 compliance before packaging.

Electron beam melting

Forging

Rolling

Machining and forming

Dimension inspection

Packaging

Quality Control & Inspection

Every ASTM B 394 Niobium Seamless Tube undergoes comprehensive quality assurance processes in compliance with ISO 9001:2015 standards:

Chemical Composition Analysis: Confirms alloy purity and conformity with ASTM B394 requirements.
Mechanical Property Testing: Includes tensile strength, elongation, and hardness verification.
Ultrasonic and Eddy Current Inspection: Ensures no internal or surface defects.
Dimensional Accuracy Check: Uses advanced measuring tools for precise tolerances.
Final Visual and Surface Examination: Guarantees flawless surface quality before delivery.

ISO 9001:2015

R&D and Customization

Our R&D department focuses on developing advanced niobium materials for various high-performance applications. We provide customized ASTM B 394 Niobium Seamless Tube solutions for:

Semiconductor and electronic industries
Aerospace and defense engineering
Superconducting and cryogenic systems
Chemical and vacuum processing components
Custom alloy compositions, mechanical properties, and sizes are available according to client specifications.

Packaging & Global Logistics

To ensure safe transportation, each ASTM B 394 Niobium Seamless Tube is carefully packaged according to international export standards:

Packaging: Vacuum-sealed or anti-rust film, foam protection, and wooden crates.
Labeling: Includes material grade, size, batch number, and heat number.
Logistics: Reliable air, sea, and express transport options for fast global delivery.
Protection: Multiple layers of cushioning to avoid surface or dimensional damage during transit.

Feedback from customers

Titanium Rod For Sale

OEM & Customization Service

Shaanxi Chuanghui Daye offers flexible OEM and ODM support for global clients requiring high-quality ASTM B 394 Niobium Seamless Tube solutions:

Custom lengths, wall thicknesses, and tolerances.
Engineering design and production based on drawings or samples.
Prototype development and small-batch supply.
Dedicated technical assistance and after-sales support worldwide.

Inspection Process

All production and inspection steps are strictly managed to ensure product quality and reliability:

Incoming Raw Material Verification – Confirming purity and compliance with ASTM B394.
In-Process Quality Control – Continuous monitoring during melting, forging, and rolling.
Dimensional Measurement – Using precision instruments to meet tight tolerances.
Nondestructive Testing (NDT) – Ultrasonic inspection for internal soundness.
Final Quality Review & Certification – Complete documentation provided before dispatch.

Why Choose Us

Over 30 Years of Rare Metal Expertise in niobium material production.
Advanced Manufacturing Equipment including electron beam furnaces and precision rolling lines.
Strict Quality Management System certified by ISO 9001:2015.
Fast Global Delivery to over 50 countries and regions.
Customized Solutions and OEM Support for specialized industrial needs.

Certification

FAQs

Q1: What is the standard of ASTM B 394 Niobium Seamless Tube?
A1: ASTM B394 defines specifications for seamless niobium and niobium alloy tubes used in high-temperature and corrosion-resistant environments.

Q2: Can you produce customized sizes?
A2: Yes, customized dimensions and tolerances are available based on customer drawings or requirements.

Q3: What are the main applications of ASTM B 394 Niobium Seamless Tube?
A3: It is widely used in chemical processing, superconducting systems, aerospace components, and electronic applications.

Q4: How do you ensure quality consistency?
A4: Through 100% inspection, chemical testing, mechanical testing, and NDT verification before shipment.

Q5: What is your typical delivery time?
A5: Standard sizes can be delivered within 7–10 days, while customized orders usually take 15–20 days.

Contact Us

Shaanxi Chuanghui Daye Metal Material Co., Ltd.
Address: Room 303, Block A, Lansi Science Park, 128 Gaoxin Avenue, High-tech Development Zone, Baoji City, Shaanxi Province, China.
Email: info@chdymetal.com
WhatsApp: +8618049386902
Business Hours: Monday – Saturday, 8:30 AM – 6:00 PM