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Western International Gas and Cylinders, Inc.

Wholesale acetylene, compressed gases and equipment

  • Gases
    • Acetylene
    • Propylene
    • High Pressure Gases
  • Cylinders
    • Cylinder Specifications
    • Cylinder Services
  • Accessories
    • Valves
    • Propylene Tips
    • Heating and Brazing Equipment
  • Technology
    • Acetylene
    • Cylinder Services
  • Applications
    • Acetylene
    • Propylene

Propylene

Propylene is a multi-purpose industrial fuel gas offering economy, safety and performance.  Western International’s HPG brand of propylene is the leading alternate fuel gas used by the metal working industry for cutting, heating, brazing and metalizing applications.

Supply Options

Bulk Propylene

Polymer-grade propylene is supplied through a combination of direct pickup from the manufacturing location and storage depots located in strategic areas throughout the United States. The product is transported to depots from the manufacturing location via jumbo railcars that contain approximately 30,000 gallons of product. Propylene gas is stored at the depots in large bulk holding facilities with capacities exceeding 60,000 gallons, then loaded into transport carriers that deliver the product to the customer’s bulk storage facility.

HPG Propylene Cylinders

Western supplies Propylene in HPG cylinders that are safe, economical and easy to handle. They come in 435, 105, 63, 27, and 2 lb sizes.

Propylene Shipping Data

Chemical Symbol C3H6
Synonyms
CAS Registry Number
DOT Proper
Shipping Name
Propylene
DOT Classification 2.1 (Flammable gas)
DOT Label FLAMMABLE GAS
TC Shipping Name Propylene
TC Classification 2.1
TC Label FLAMMABLE GAS
UN Number UN 1077

Propylene Physical Properties

 US UnitsSI Units
Chemical formulaC3H6C3H6
Density of the gas at 70°F (21.1°C)0.110 lb/ft31.77 kg/m3
Molecular weight42.08142.081
Specific gravity of the gas at 70°F (21.1°C)1.451.45
Density of the liquid at 70°F (21.1°C)32.07 lb/ft3513.71 kg/m3
Specific gravity of the liquid at 70°F (21.1°C)0.5140.514
Boiling range-53.90°F-47.72°C
Vapor pressure at 70°F (21.1°C)132.81 psig915.69 Kpa
Critical temperature197.2°F91.77°C
Critical pressure670 psia4619.5 Pa
Latent heat of vaporization at 77°F (25°C)118.18 Btu/lb437.71 kJ/kg
Cp of gas at 60°F (15.6°c) and 1 atm0.355 Btu/lb/F1.49 kJ/kg/C
Cv of gas at 60°F (15.6°c) and 1 atm0.308 Btu/lb/F1.288 kJ/kg/C
Gross heat of combustion21048 Btu/lb49112 kJ/kg
Flame temperature in oxygen5295°F2924°C
Flammable limit in air2 to 11.1%2 to 11.1%

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