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Overview of Atmosphere-Compass: the Software Tool for Atmospheric Corrosion Prediction and Modeling

Atmosphere-Compass is the only device and OS independent software tool on the market for the service life prediction and modeling of atmospheric corrosion of metals and alloys in compliance with ISO 9223 and ISO 9224. Designers, architects, OEM engineers, consultants, operation personnel, maintenance and inspection engineers can quickly determine the expected service life of a structure or component exposed to indoor or outdoor atmospheres, anytime, anywhere, on any device running any OS without the need to install or download anything. Atmosphere-Compass also predicts the corrosion rate, the maximum and average corrosion depth, the rust rating number and rust area ratio of equipment or structures based on the following inputs:

• material type/grade

• age of structure

• nominal thickness

• exposure condition - indoor or outdoor

• ISO exposure environments, or

• site specific data if available (temperature, relative humidity, sulfur dioxide (SO₂) deposition rate, chloride deposition rate, and distance from the shore)

The outputs of Atmosphere-Compass include the following:

• the atmosphere corrosivity category

• the atmosphere corrosivity ranking

• the degree of rust and stains on the surface measured by the rust rating number (RN) and the rust area ratio (%) as per BS ISO 23721 standard.

• the maximum or average corrosion depth at the specified age of the equipment or structure

• the corrosion rate at the specified age of the equipment or structure

• the remaining life of the equipment or structure

• a plot of the corrosion depth (µm) vs. service life in years

Figures below show the screen shots of Atmosphere-Compass.

Figure 1 Atmosphere-Compass Predicts the rate of atmospheric corrosion and the remaining life of structures.

Under the specified exposure conditions shown in Figure 1 above, Atmosphere-Compass predicts, the corrosion rate, the accumulated depth of corrosion at the specified age, and the remaining life of the structure.

Figure 2 Atmosphere-Compass Predicts Atmospheric Corrosion of Metals, Alloys, and Metallic Coatings.

Figure 3 Atmosphere-Compass Predicts Atmospheric Corrosion in Indoor and Outdoor Environments.

Figure 4 Users can select ISO exposure environment or enter site specific data in Atmosphere-Compass for precise modeling of service life.

Figure 5a Users can enter site specific data in Atmosphere-Compass for precise modeling of service life.

If the annual average SO2 deposition rate or the annual average chloride deposition rate at the site location is not available, users of Atmosphere-Compass can simply enter the distance of the site from the industrial zone (Figure 5b) and/or the distance of the site from the shore (Figure 5c), the software will compute the corrosion rate accordingly taking into account of the distance effect.

Figure 5b Users can enter site specific data in Atmosphere-Compass for precise modeling of service life.

Figure 5c Users can enter site specific data in Atmosphere-Compass for precise modeling of service life.

Atmosphere-Compass models and predicts atmospheric corrosion of metals and alloys including commonly used stainless steels and duplex steels. Following is the list materials included in Atmosphere-Compass:
Aluminium
Al1XXX
Al2XXX
Al3XXX
Al5XXX
Al6XXX
Al7XXX
Copper
Steel
Zinc
HDG Zinc Coating
Zn-5Al Coating
Zn-55Al Coating

Zn-6Al-3Mg
Zn-3.5Al-3Mg
Zn-2.5Al-3Mg
Type 410
Type 430
Type 444
Type 446
Type 304
Type 304L
Type 304LN
Type 316
Type 316L
Type 316LN
Type 317
Type 317L
Type 317LMN
Type 321
Type 347
904L
254SMO
AL-6X
AL-6XN
Incoloy 825
Inconel 625
Duplex 2205
Duplex 2304
Duplex 2507
Duplex 2707HD

The powerful applications of Atmosphere-Compass are truly unlimited in engineering design, corrosion prediction and corrosion modeling, materials selection, and remaining life estimation of equipment and structures exposed to atmospheric environments.

Click here to contact us for licensing details and experience the power of Atmosphere-Compass.

Atmosphere-Compass, giving you the right directions in Atmospheric Corrosion Prediction and Modeling

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