Description of PENETRATION BITUMEN 30/40

Penetration Bitumen 30/40 is a kind of refinery bitumen with a permeability between 30 and 40 that is produced by vacuum aerating a distillation tower. This kind of bitumen is most often used in the manufacturing of liquid bitumen, insulation, and for building construction. Tropical and very dry areas are better suited for the usage of bitumen 30/40. Petroleum grade bitumen of this kind is produced from fractional-vacuum-destination crude oil. The vacuum residual feedstock is used to create the bitumen penetration grade 30-40 that PetroNaft Co. supplies.

The penetration test is used to define bitumen of the penetration grade. Designation solely based on penetration range. The depth to which a standard-loaded needle would vertically penetrate in 5 seconds in a sample of bitumen kept at a temperature of 25 degrees Celsius is used to assess penetration, which defines the hardness of bitumen.


A typical form of penetration bitumen used in road building, waterproofing, and roofing is bitumen 30/40. Bitumen 30/40, a premium asphalt product made by Petro Naft Corporation, has outstanding binding qualities and is very resistant to wear and strain.

The penetration rate of Bitumen 30/40, which is measured in tenths of millimeters, is one of its important characteristics. With a penetration rate of 30 to 40 at 25°C, this specific kind of bitumen is a great option for usage in regions with moderate to high traffic.

Bitumen 30/40 is very resistant to temperature changes and can sustain severe temperatures without breaking or deteriorating, in addition to having great binding characteristics and being durable. Because of this, it is often used in tough environments where other kinds of asphalt would not hold up as well.

Our Bitumen 30/40 product is of the highest caliber, and we at Petro Naft Corporation are quite proud of it. Modern technology and equipment are used in our state-of-the-art manufacturing facilities to guarantee that our clients get the best product possible.

We manufacture the highest quality Penetration Bitumen 30-40 in different types and export them from Iran and the UAE to other countries around the world.

  • Penetration Bitumen 30/40 Iran
  • Penetration Bitumen 30/40 UAE


The thermoplastic feature of the penetration bitumen 30/40 leads it to soften at hot temperatures and firm at cold ones. Temperature affects the bitumen mode. The kind of crude oil and the refinement process have an impact on how bitumen behaves in respect to temperature and stiffness.

• Extremely strong adherence to the majority of materials

• Atmospheric stability

• Extended service life


Bitumen 30/40Test methodUnitSpecification
Specific gravity @ 25°cASTM D70Kg/cm31.01/1.06
Penetration @ 25°cASTM D5mm/1030/40
Softening point °cASTM D36°C55/63
Ductility @25 °cASTM D113cm100 min
Loss on heating(wt) %ASTM D6wt %0.2 max
Drop in penetration after heating %ASTM D5-D6%20 max
Flash point °cASTM D92°C250 min
Solubility is CS2(wt) %ASTM D4wt %99.5 min
Spot testA.A.S.H.O.T102 Negative

Applications of PENETRATION BITUMEN 30/40

Bitumen penetration 30/40 is a semi-hard penetration grade bitumen that is used as paving grade bitumen for building and repairing roads. Hot mix asphalt for bases and wearing courses is mostly made using this grade of bitumen. One of the most used bitumen grades is bitumen penetration 30/40, which serves as the building block for all other bituminous products.


Petro Naft produces penetration bitumen 30.40 of the best quality in a variety of types and exports it from Iran and the United Arab Emirates to other nations worldwide.

  • Iran Penetration Bitumen 30/40 ( Iran Bitumen 30/40 )
  • Emirates Peneteration Bitumen 30/40 ( Emirates Bitumen 30/40)



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