Helium-Nitrogen (He-N₂) Mixture Gas

Helium-Nitrogen (He-N₂) Mixture Gas | Custom Ratio Industrial & Specialty Gas Supplier

Supplier: Wenzhou Yingyue New Materials Co., Ltd.

Product Overview

Helium-nitrogen (He-N₂) mixture is an inert gas blend composed of high-purity helium and nitrogen mixed in precise volumetric ratios. Combining the low density, high diffusivity of helium with the low cost and excellent inertness of nitrogen, it offers a cost-effective alternative to pure helium for most industrial applications.

Yingyue New Materials provides fully customizable He-N₂ mixtures ranging from 1% to 99% helium concentration. Using advanced gravimetric blending technology compliant with GB/T 5274.1-2018 standard, our mixtures feature ±0.1% ratio accuracy and ultra-low impurity levels. All batches are tested and certified with standard COA and MSDS, supporting global export services.

Key Product Specifications

Standard Cylinder Parameters

Purity Grade & Impurity Control

We supply He-N₂ mixtures strictly complying with GB/T 5274.1-2018 national standard, with batch-by-batch testing to ensure consistent quality:

1. Industrial Grade (Total Purity ≥99.9%)

Suitable for general industrial applications including leak detection, balloon inflation and heat treatment.

• Controlled impurities: Moisture ≤10ppm, Oxygen ≤10ppm, Total Hydrocarbons ≤5ppm

2. High Purity Grade (Total Purity ≥99.999%)

Dedicated for precision applications including semiconductor manufacturing, instrument calibration and laboratory research.

• Controlled impurities: Moisture ≤1ppm, Oxygen ≤1ppm, Total Hydrocarbons ≤0.5ppm

Customization Service

We provide fully customized mixtures with precise ratio control (±0.1% accuracy) to meet specific customer requirements for different applications.

Physical & Chemical Properties

Helium-nitrogen mixtures are chemically inert, non-flammable and non-toxic under normal conditions. Their physical properties vary linearly with the helium concentration:

• Density: Ranges from 1.165 kg/m³ (pure N₂) to 0.178 kg/m³ (pure He) at 20°C, 1atm

• Thermal Conductivity: Higher than pure nitrogen, increasing with helium content

• Chemical Stability: Does not react with most substances at room temperature

• Diffusivity: Higher than pure nitrogen, making it ideal for leak detection applications

Packaging & Transportation Solution

We provide standardized global packaging solutions for He-N₂ mixture gases, adapting to regional import standards worldwide:

• Standard Steel Cylinders: 4L, 10L, 40L, 47L, 50L seamless steel cylinders with certified valves. DOT, ISO and TPED certified cylinders available for European, American and global markets.

• Cylinder Bundle Packaging: 6-pack and 12-pack cylinder bundles for centralized storage and transportation, ideal for factory continuous gas supply.

• Bulk Transportation: ISO tank containers available for large-volume bulk orders.

• Customized Service: Support personalized customization of cylinder size, filling pressure and valve interface models.

Main Applications

Helium-nitrogen mixtures are widely used across various industries due to their versatile properties and cost-effectiveness:

1. Leak Detection: The most common application for pressure testing and leak detection of pipelines, pressure vessels, refrigeration systems and semiconductor components. 1%He+99%N₂ is the industry standard ratio for helium mass spectrometry leak detection .

2. Welding Shielding Gas: Used for welding aluminum, stainless steel and copper alloys. Higher helium content provides higher arc temperature and deeper penetration, improving welding speed and quality .

3. Balloon Inflation: Cost-effective alternative to pure helium for party balloons, advertising balloons and meteorological balloons. 20%He+80%N₂ provides sufficient buoyancy at significantly lower cost.

4. Heat Treatment: Used as protective atmosphere in metal heat treatment processes to prevent oxidation and decarburization.

5. Laboratory & Instrumentation: Used as carrier gas for gas chromatography, purge gas for analytical instruments and calibration gas for pressure gauges.

6. Diving & Hyperbaric Applications: Used as a component in breathing gas mixtures for deep diving and hyperbaric chamber operations, reducing nitrogen narcosis risk .

7. Laser Technology: Used as assist gas in laser cutting and welding processes for non-ferrous metals.

Product Advantages

✅ Precise Ratio Control: Advanced gravimetric blending technology ensures ±0.1% ratio accuracy, meeting the most demanding application requirements
✅ Full Ratio Coverage: Any helium concentration from 1% to 99% available, covering all industrial and specialty applications
✅ National Standard Compliance: Strictly implemented GB/T 5274.1-2018 standard, stable batch composition and qualified impurity indicators
✅ Cost-Effective Solution: Optimized helium content provides the required performance at significantly lower cost than pure helium
✅ Complete Export Qualifications: Each batch supports COA test report, MSDS safety sheet and full customs clearance documents for global trade
✅ Standardized Safety Packaging: Certified cylinders with multiple international approvals, safe and compliant for global transportation
✅ Stable Factory Supply: Direct factory supply with sufficient inventory, supporting long-term bulk cooperation and customized orders

Safety & Export Compliance

All He-N₂ mixture products comply with UN1956/UN1981 transportation standards and relevant national specifications. Although non-flammable and non-toxic, these gases can cause asphyxiation by displacing oxygen in confined spaces. Store and use in well-ventilated areas, away from direct sunlight and heat sources. We provide complete export documents including MSDS safety data sheet, batch COA quality certificate and origin certification, ensuring smooth global customs clearance.

Company Information & Contact

Company Name: WENZHOU YINGYUE NEW MATERIALS CO., LTD
Official Website: www.yycheme.com
Email: info@yycheme.com