DATA ENTRY
SELECT THE TEMPERATURE, HUMIDITY, AND THE CHEMICALS THAT WOULD HAVE A DIRECT OR INDIRECT CONTACT WITH THE MATERIAL BEING EVALUATED
TYPICAL AMBIENT TEMPERATURE:
Select your option
HUMIDITY:
Select your option
-
DIRECT OR SPLASH CONTACT CHEMICALS:
-
AMBIENT OR INDIRECT CONTACT CHEMICALS:
NOTES:
- To get the most accurate material guidance with this tool, be mindful that if a chemical is used within 50 yards of the application site, where the fluid is open to the environment, it will very likely be present in the area in ambient form. Be sure to include these chemicals in the Ambient data entry section.
- If there are more chemistries in the area, than there are in the dropdown, please enter the elements that have the highest concentrations or most contact for your application.
- The concentrations used for testing are listed next to some of the chemicals for reference to use when making your final material selection.
* Denotes a required field
Material Selection Report
Date:
Created For:
Site Name:
MATERIAL SELECTION DATA GIVEN
MATERIAL SELECTION FINDINGS
Based on the information given,
the following is a report of guidance for materials and product
families that are part of Hoffmans Standard Product Offering.
*If you don't see the recommended material in the
size/shape of enclosure you'd like; contact your Hoffman Rep.
We can do a variety of custom and modified solutions to fit
your specific needs.
ENCLOSURE MATERIAL
EVALUATION:
| Click on the material name below to view our product offerings | Recommended | Satisfactory | Limited Use | Not Recommended |
|---|---|---|---|---|
| Mild Steel | ||||
| 304 Stainless Steel | ||||
| 316L Stainless Steel | ||||
| Aluminum | ||||
| Polycarbonate | ||||
| Polyester | ||||
| Fiberglass, Compression | ||||
| Fiberglass, Spray-Up | ||||
| ABS |
DEFINITIONS:
- Recommended: Limited to No Affect by chemical; Limited to no deterioration
- Satisfactory: Very little effect; reduced aesthetics probable over time
- Limited Use: Chemical attack probable with slow deterioration
- Not Recommended: Severe attack is imminent; rapid deterioration
** If all
materials are shown above as "Not Recommended", that means based
on the data entered, this application is quite prone to unique
corrosion challenges and should be reviewed in more detail by a
member of our technical team to provide material selection
guidance. Please email your inquiry to Hoffman@nVent.com for
a detailed review of your application needs.
Other
Key Decision Factors:
Humidity:
With a medium level of humidity, the moisture in the environment
will encourage the corrosive reactions to take place, attacking
your equipment.
With a lower level of humidity, the
corrosive reactions from this environment will potentially occur
at a slower rate than more humid areas.
No humidity value chosen.
With a high level of humidity, the
corrosive reactions from this environment will occur at an
expedited rate. It would be a best practice to utilize a
moisture management system such as Hoffmans H2Omit system inside
the enclosure, and evaluate the use of chemical resistant
coatings for the surface to better protect your equipment from
chemical attack.
Temperature:
No temperature value chosen.
Temperatures in this range will begin
to create an environment conducive to corrosion. If your
application also has medium to high levels of humidity, the
speed of corrosion begins to increase at a higher rate.
Temperatures in this range can have
multiple impacts on your equipment. It would be important to
evaluate tensile and impact strengths in these environments
when deciding on a material. With configured components inside
an enclosure creating a heat differential between
internal/external temps. At times this can create condensation
build-up inside an enclosure, which will enhance the corrosive
attack on those moisture ridden surfaces as the corrosive gases
enter an enclosure. It would be a best practice to evaluate a
moisture management system such as Hoffman's H2Omit solution
series.
Temperatures below freezing can have
multiple impacts on your equipment. It would be important to
evaluate tensile and impact strengths in these environments
when deciding on a material. With configured components inside
an enclosure creating a heat differential between
internal/external temps. At times this can create condensation
build-up inside an enclosure, which will enhance the corrosive
attack on those moisture ridden surfaces as the corrosive gases
enter an enclosure.
Temperatures in this range will
expedite corrosive reactions. Even moreso when paired with
medium to high levels of humidity in the environment. It will
be imperitive to the design life of your application to adhere
to only the materials that fall under the "Recommended"
category to keep your equipment safe.
ADDITIONAL MATERIALS:
| Recommended | Satisfactory | Limited Use | Not Recommended | |
|---|---|---|---|---|
| WINDOW KITS | ||||
| Acrylic Clear Sheet | ||||
| Acrylic Molded | ||||
| Polycarbonate Clear Sheet | ||||
| Polycarbonate, Silicone Coated | ||||
| UNCOMMON ENCLOSURE MATERIALS | ||||
| Fiberglass, Pultruded | ||||
| Polyester (PBT Glass Reinforced) | ||||
| Monel | ||||
| MILD STEEL TREATMENTS | ||||
| Cadmium Plate with Chromate | ||||
| Epoxy Powder Coat, Painted | ||||
| Enamel, Machinery, Over Prime, Painted | ||||
| Galvanized, G-90 | ||||
| Grey Prime, Over Phosphate, Painted | ||||
| Polyurethane Painted |
DEFINITIONS:
- Recommended: Limited to No Affect by chemical; Limited to no deterioration
- Satisfactory: Very little effect; reduced aesthetics probable over time
- Limited Use: Chemical attack probable with slow deterioration
- Not Recommended: Severe attack is imminent; rapid deterioration
NOTES:
- This tool is to be used as a guide in your decision process of material selection.
- As the designer it is important to take into consideration a number of other parameters for your specific application not included in this tool such as system upset conditions, frequency of system upsets, chemical concentrations, enclosure cleaning and maintenance schedules, location of install, as well as many other environmental variables.
- This tool is intended to be used as a guiding component of your overall enclosure material decision process, where the designer also takes into consideration the additional variables like those listed above before making their final material decision.