Stainless steel pipes are an integral part of any structure intended for habitation of humans. Hence, their demand has taken a forward leap with the infrastructure development. Moreover, these serve more purposes in manufacturing goods needed for the flawless functioning of plants and industries. 304 and 316 are two choices commonly available if you visit stainless pipe suppliers.

Seeing them at a glance, people often get confused as these two visually appear similar. However, these are distinct and have different applicabilities. Through this post, we will develop a nuanced understanding that will enable you to make informed decisions.

304 Stainless Steel Pipe-Overview

Grade 304 stainless steel consists of 18% chromium and 8% nickel. It is also referred to as an 18/8 stainless steel pipe. With the same, it is an austenitic stainless steel, which is non-magnetic and can not be hardened by heat treatment. Its materialistic properties built corrosion resistance, and weldability. The balance of properties in this stainless steel pipe makes it a versatile material. It makes grade 304 stainless steel pipe suitable for various applications, such as food, chemical, and architectural purposes.

316 Stainless Steel Pipe-Introduction

316 stainless steel pipe has 16-18% chromium, 10-14% nickel, and 2-3% molybdenum, which makes it super corrosion resistant. Its ability to resist saltwater corrosion makes it suitable for sea applications. Hence, its heteronym is “marine grade stainless steel pipe.” Moreover, it has a wide range of applicability in pharmaceuticals and chemical processing. It is also preferred by plants for its ability to resist thermal runaway and ingress.

Comparing 304 and 316 Stainless Steel Pipe on Various Parameters

Both 316 and 304 have their unique set of features, and they differ from each other. The following are some parameters that make them distinct.

Corrosion Resistance

When it comes to corrosion resistance, both 304 and 316 have an edge, making them suitable for withstanding regular wear and tear and exposure to air, water, and mild chemicals. Hence, both are suitable for distinct applications. However, molybdenum present in Grade 316 fosters an advantage. Hence, the 316 can withstand some specific corrosions, which include pitting and crevice corrosion. Pitting corrosion is the localized form of attack that makes the metal surface deformed with small holes. Molybdenum acts as a protective agent and inhibits the process. It is beneficial for application, particularly in environments with chloride salts. That being established, crevice corrosion occurs in the space with limited exposure to oxygen. Molybdenum is the key material that prevents the material here too.

Tensile Strength and Durability

The strength and durability of a pipe are a primary concern when one visits a stainless steel pipe company. When it comes to this parameter, 316 overshadows 304 and is a better choice. Hence, 316 is used for applications needing enhanced durability and longevity. Despite this advantage, 316 is not suitable everywhere 304 is used, and one must select the pipes carefully.

Temperature Resistance

Temperature resistance is a quality that enables the pipes to remain intact for application. 304 is a suitable choice where moderate temperature resistance is a requirement for seamless application. However, the 316 exhibits superior temperature resistance and is proactively used in areas with elevated temperatures.

Magnetism

When it comes to magnetism, both 316 and 304 are non-magnetic substances. However, cold working may channel their magnetic angle, and these exhibit a partial paramagnetic behavior for any formation or cut on the surface.

Cost

Being one pipe of avant-grade steel, 316 is relatively pricey than the 304 stainless steel pipe.

Application

304 and 316 stainless steel pipes have different applications. Here is how they differ based on their applicability:-

304 Stainless Steel Pipe

  • Food and Beverage Processing
  • Chemical Processing
  • Automotive Applications
  • Construction and Architecture
  • Plumbing
  • Creating Hardware and Fasteners

316 Stainless Steel Pipe

  • Marine Applications
  • Chemical Processing Plants
  • Pulp and Paper Mills
  • Food and Beverage Processing of explicitly salty and acidic products.
  • Aerospace Industry
  • Nuclear Power Plants

How to Buy Stainless Steel Pipe?

One must consider the circumstances and application in mind while placing their orders in any stainless steel pipe company. Moreover, they must bear the budget constraints in mind to avoid further conflicts of interest.

Concluding Remarks

304 and 316 stainless steels have a wide range of distinct applications due to their different compositions and materialistic properties. 316 has an edge over 304 when it comes to materialistic properties like tensile strength, durability, and temperature resistance. However, it is not advisable to use the same everywhere. Are you looking for a relevant option for stainless steel pipe Oman? SJS Enersol is a reputed stainless steel pipe company.