Sperta System
Chemicals Harmful to Non Metal Materials vs Carbon Steel Materials

Comparing Corrosion Resistance: Chemicals Harmful to Non-Metal Materials vs. Carbon Steel Materials

Table of Contents

Corrosion is a complex phenomenon influenced by multiple factors, including the specific chemical environment, temperature, concentration, presence of impurities, and the material’s composition. While carbon steel is generally susceptible to corrosion in many aggressive chemical environments, it’s important to note that there are scenarios where it may offer better resistance than certain non-metal materials. However, the suitability of carbon steel as a corrosion-resistant material is often limited and specific to certain conditions.

What Chemical is Harmful to Non-metal Materials but Can be Resisted by Carbon Steel?

Here’s an example where a chemical may be corrosive to certain non-metal bodies but might be resisted by carbon steel:

Chemical: Sodium Hydroxide (Caustic Soda)

Sodium hydroxide is a highly alkaline chemical often used in industrial processes, including wastewater treatment. It is corrosive to many metals and can significantly deteriorate over time. However, carbon steel can offer reasonable resistance to sodium hydroxide under certain conditions, particularly when used in diluted solutions and at moderate temperatures.

Carbon Steel for Package MBR System 1
Carbon Steel for Package MBR System

Why Carbon Steel Can Withstand Sodium Hydroxide Corrosion?

Passivation: Carbon steel can form a passive iron oxide layer (rust) on its surface when exposed to oxygen, which can act as a protective barrier against further corrosion. In the case of sodium hydroxide, carbon steel may develop a stable iron oxide layer that helps resist the chemical’s corrosive effects.

Alkaline Conditions: Sodium hydroxide is highly alkaline, and carbon steel can often withstand exposure to alkaline solutions without rapid deterioration. The passive oxide layer provides a level of protection.

Temperature and Concentration: Lower concentrations of sodium hydroxide and moderate temperatures can further reduce the corrosive impact on carbon steel, allowing it to maintain its integrity over a longer period compared to some non-metal materials.

High Corrossion resistant primer 2
Carbon Steel for Package MBR System II

It’s important to emphasize that the corrosion resistance of carbon steel to sodium hydroxide is not universal and depends on factors like concentration, temperature, exposure time, and other chemicals or impurities. In more aggressive conditions, carbon steel may still experience corrosion and degradation. Additionally, other non-metal materials, such as certain plastics or polymers, may offer better corrosion resistance to sodium hydroxide under a wider range of conditions.

When selecting materials for specific applications, it’s crucial to conduct thorough corrosion testing, consider the chemical environment, and consult with materials experts to ensure the chosen material offers adequate corrosion resistance.

Kevin Chen

Kevin Chen

Hi, I'm the author of this post and have been in this field for over 5 years. If you have questions regarding the MBR membrane products or want to purchase the MBR membrane, please feel free to contact me by email. kevin@spertasystems.com

Like this article?

Share on Facebook
Share on Twitter
Share on Linkdin
Share on Pinterest

More to explorer

How to Calculate the Head of the Pump

How to Calculate the Head of the Pump?

The pump head represents the height at which the pump can raise water, a key performance parameter also known as the pressure head. It can be expressed as the increase in fluid’s pressure head, kinetic head, and potential head, i.e.,

H=(p2-p1)/ρg+(v2²-v1²)/2g+z2-z1

What is the HS Code of MBR Membrane

What is the HS Code of MBR Membrane?

If you’re involved in international trade and deal with MBR (Membrane BioReactor) membranes, you might have wondered about their HS code. The HS code, or Harmonized System code, is a critical classification system used globally to identify and categorize products for import and export. So, what HS code applies to MBR membranes?

Here are 2 types of MBR membrane and their corresponding HS codes:
MBR Membrane Element (HS code: 842199)
MBR Membrane Module (HS code: 842121)

What is the MBR Membrane?

What is the MBR Membrane?

MBR membrane is a new type of water treatment technology equipment. It mainly comprises two technologies: MBR membrane separation and biological treatment.

Need MBR Membrane for your plants?
Get The Latest Updates

Subscribe To Our Newsletter

No spam, notifications only about new article updates regarding MBR membrane Technologies.

Sperta System

Ask For A Quick Quote

We will contact you within 6 hours, please pay attention to the email with the suffix “@spertasystems.com”.