Argon(Ar)
Specifications
- CAS No.: 7440-37-1
- UN No.: 1004
- EINECS No.: 231-147-0
- Molecular Weight: 39.948 g/mol
- Appearance: Colorless, odorless
- Melting Point: -189.2 ℃
- Boiling Point: -185.9 ℃
- Density: 1.784kg/m³
- Hazard Class (DOT): 2.2 & 8
- Label: Non-flammable Gas
High-purity argon (Ar) gas supplied from China for welding, metallurgy, and electronics manufacturing.
High-purity argon (Ar) gas for arc welding, metal refining, bulb filling, and semiconductor processing.
Argon is a colorless, odorless, monatomic noble gas that is approximately 1.4 times denser than air. As an inert gas, it does not react chemically with other substances at room temperature and remains insoluble in liquid metals at high temperatures. Argon serves as a shielding gas in arc welding of stainless steel, magnesium, and aluminum (argon welding), a filling gas for incandescent and fluorescent bulbs, and a protective atmosphere for metallurgical processes. High-purity argon is also essential for semiconductor manufacturing, laser applications, and analytical instrumentation, typically transported as a liquefied compressed gas.
Global Shipping & Export Compliance
Argon (UN 1004) is classified as a non-flammable compressed gas and must be handled under strict hazardous materials regulations.
- Sea freight (FCL / LCL) – standard export method
- Air freight – available with regulatory compliance
Required Export Documents
- Material Safety Data Sheet (MSDS)
- Certificate of Analysis (COA)
- Dangerous Goods Declaration (DGD)
- UN-certified cylinder documentation
- Commercial invoice & packing list
How to Order Argon Gas from China
- Send technical requirements (purity, pressure, application)
- Receive quotation (EXW / FOB / CIF options)
- Confirm cylinder specification & compliance
- Review COA, MSDS, and certification documents
- Production, filling, and quality inspection
- Hazardous goods shipping arrangement
- Delivery and final inspection at destination
Common Mistakes When Buying Argon Gas
- Choosing suppliers only based on lowest price
- Ignoring cylinder certification and pressure rating
- Not verifying moisture and impurity levels
- Skipping third-party inspection before shipment
- Overlooking export documentation compliance
Packaging
| Cylinder Capacity | Valve | Volume | bar | psig |
|---|---|---|---|---|
| 40L | CGA580 / QF-2 | 6 m3 | 150 | 2175 |
| 47L | CGA580 / QF-2 | 7 m3 | 150 | 2175 |
| 50L | CGA580 / QF-2 | 10 m3 | 200 | 2900 |
Industrial Grade Argon (Ar) 99.999%
| Specification | 99.999% |
|---|---|
| Hydrogen | ≤ 0.5 ppm |
| Oxygen | ≤ 1.5 ppm |
| Moisture | ≤ 3.0 ppm |
| Methane + Carbon Monoxide + Carbon Dioxide | ≤ 1.0 ppm |
| Nitrogen | ≤ 4.0 ppm |
Industrial Grade Argon (Ar) 99.9999%
| Specification | 99.9999% |
|---|---|
| Hydrogen | ≤ 0.5ppm |
| Oxygen | ≤ 0.2ppm |
| Moisture | ≤ 0.5ppm |
| Methane | ≤ 0.1ppm |
| Nitrogen | ≤ 0.4 ppm |
| Carbon Monoxide | ≤ 0.1ppm |
| Carbon Dioxide | ≤ 0.1ppm |
Frequently Asked Questions
