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Argon Carbon Dioxide (Ar-CO₂) Mixed Gas | Welding & Industrial Grade Supplier

80/20 Argon CO₂, 75/25 Welding Gas, MAG Welding Gas, Carbon Steel Welding Gas.
Precision Ar CO₂ Mixed Gas, China Welding Gas Supplier, MSDS Certified Shielding Gas, COA Approved Ar CO₂ Blend, Automated Welding Mixed Gas

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Argon Carbon Dioxide (Ar-CO₂) Mixed Gas | Welding & Industrial Grade Supplier

Supplier: Wenzhou Yingyue New Materials Co., Ltd.

Product Overview

Argon-CO₂ mixed gas is the most widely used active shielding gas for MAG welding. Yingyue provides full-series custom blends with ±0.5% precision ratio control. Made from high-purity raw gases, our mixtures feature stable arc performance and low spatter. All batches come with standard COA and MSDS, supporting global export packaging.

Key Product Specifications

Parameter

Details

Product Name

Argon Carbon Dioxide Mixed Gas, Welding Shielding Gas, Ar-CO₂ Blend

Chemical Components

Argon (Ar) + Carbon Dioxide (CO₂)

CAS Numbers

Ar: 7440-37-1; CO₂: 124-38-9

EINECS Numbers

Ar: 231-147-3; CO₂: 204-696-9

UN Number

UN 1956

Hazard Class

2.2 Non-flammable Compressed Gas

Standard Ratios

80%Ar+20%CO₂ (C20), 75%Ar+25%CO₂ (C25), 90%Ar+10%CO₂ (C10)

Custom Ratios

95%Ar+5%CO₂, 98%Ar+2%CO₂ (stainless steel grade)

Ratio Accuracy

±0.5% (strictly controlled per GB/T 39255-2020)

Appearance

Colorless, odorless compressed gas

Standard Filling

40L/47L steel cylinder, 13.5±0.5MPa pressure

Standard Valve

QF-2 (CGA580 customizable)

Purity Grade & Impurity Control

All mixtures are strictly manufactured in accordance with GB/T 39255-2020 national standard, using high-purity raw gases (Ar ≥99.999%, CO₂ ≥99.995%) with rigorous batch testing:

1. General Welding Grade (Standard Ratios)

The mainstream grade for carbon steel and low alloy steel welding. Controlled impurities: Moisture ≤20ppm, Oxygen ≤30ppm, Total Hydrocarbons ≤10ppm. Ensures stable arc, moderate spatter and good weld formation, suitable for most manual and semi-automatic welding operations.

2. Precision Welding Grade

For automated welding lines and high-quality appearance requirements. Impurity control: Moisture ≤10ppm, Oxygen ≤15ppm, Total Hydrocarbons ≤5ppm. Features extremely low spatter rate, smooth weld surface and minimal post-weld cleaning, ideal for automotive and appliance manufacturing.

3. Special Material Grade (98%Ar+2%CO₂)

Designed for stainless steel and high-strength steel welding. Ultra-low CO₂ content prevents intergranular corrosion and maintains excellent weld toughness. Strictly controlled trace impurities ensure the mechanical and corrosion resistance properties of the weld joint.

Physical & Chemical Properties

Argon-CO₂ mixed gas combines the advantages of both components: argon provides excellent arc stability and low spatter, while carbon dioxide increases penetration depth and improves weld pool fluidity. Compared to pure CO₂, it significantly reduces spatter and improves weld appearance; compared to pure argon, it offers better penetration and lower cost.

The mixture is non-flammable, non-toxic and chemically stable under normal conditions. It is slightly heavier than air and may accumulate in low-lying areas, causing oxygen displacement and asphyxiation hazards in enclosed spaces.

Packaging & Transportation Solution

We offer standardized global packaging solutions for Ar-CO₂ mixed gas, supporting both small trial orders and large-scale bulk supply:

Global Standard Cylinders: 4L, 10L, 40L, 47L seamless steel cylinders with QF-2 valves. DOT and ISO certified cylinders available for European, American and Southeast Asian markets.

Bundle Packaging: 6-cylinder and 12-cylinder bundles for convenient transportation and on-site use, suitable for large construction sites and factories.

Bulk Transportation: ISO tank containers and dedicated gas trucks for bulk delivery, providing continuous supply for industrial parks and large manufacturing bases.

Customization: Special valve configurations (CGA580, BS341) and cylinder colors available upon request.

Main Applications

Ar-CO₂ mixed gas is the most versatile and cost-effective shielding gas for metal fabrication:

1. General Manufacturing: MIG/MAG welding of carbon steel and low alloy steel for machinery, equipment and structural components

2. Automotive Industry: Body panel welding, chassis assembly and battery tray manufacturing, especially for automated robotic welding lines

3. Shipbuilding & Offshore: Hull structure welding, pipe installation and heavy equipment fabrication

4. Construction & Steel Structure: Bridge construction, building steel structure and pressure vessel manufacturing

5. Stainless Steel Welding: Low-CO₂ blends (2-5% CO₂) for stainless steel fabrication requiring corrosion resistance

6. Sheet Metal Processing: Thin plate welding with low heat input to prevent burn-through and distortion

Product Advantages

Precision Ratio Control: ±0.5% accuracy guaranteed, consistent performance across all batches
Full Ratio Coverage: All standard and custom ratios available to meet different welding requirements
Low Impurity Content: Ultra-low moisture and oxygen levels to prevent weld porosity and defects
Excellent Welding Performance: Stable arc, low spatter, good penetration and beautiful weld formation
Cost-Effective: Balances performance and cost, reducing overall welding production costs
Complete Export Documents: Each batch provided with COA, MSDS and all necessary customs clearance documents
Stable Supply Capacity: Factory direct supply with sufficient inventory to meet bulk order demands

Safety & Export Compliance

All Ar-CO₂ mixed gas products comply with UN1956 international transportation standards and GB/T 39255-2020 national specifications. We provide comprehensive export documentation including MSDS safety data sheet, batch COA quality certificate and certificate of origin.

Safety Notes: The gas is stored under high pressure; cylinders may explode if heated. Keep away from heat sources and direct sunlight. Use in well-ventilated areas to prevent asphyxiation. Secure cylinders properly during storage and transportation.

Company Information & Contact

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

WENZHOU YINGYUE NEW MATERIALS CO., LTD is a professional Chinese manufacturer and exporter of industrial gases, mixed gases and fine chemical products. With advanced gas mixing equipment and strict quality management systems, we provide reliable one-stop procurement solutions for customers worldwide.

Mixed gases CO2/Ar in steel cylinder

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