SUS304 stainless steel pipe wall thickness chart
Dec 26, 2025
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When working with SUS304 stainless steel pipes, knowing the correct wall thickness is crucial for ensuring that the pipes meet the specific pressure, strength, and corrosion resistance requirements of your application. In this article, we will provide a detailed SUS304 stainless steel pipe wall thickness chart, explain how to use it, and highlight the importance of selecting the right wall thickness for your project.
Why is the wall thickness of SUS304 stainless steel pipes so important?
The wall thickness of SUS304 stainless steel pipes is a crucial factor determining the following key aspects:
Pressure resistance: Thicker walls can withstand higher internal pressure and are less prone to failure.
Corrosion resistance: Thicker pipe walls provide better resistance to corrosive environments, especially in highly corrosive chemical or high-salinity marine environments.
Strength and durability: Thicker pipes have greater strength, making them suitable for high-stress applications such as structural support or heavy-duty piping systems.
Weight and cost: Wall thickness directly affects the weight and cost of the pipe, which is crucial for budgeting and logistics.
SUS304 Stainless Steel Pipe Wall Thickness Chart
Below is a typical wall thickness chart for SUS304 stainless steel pipes based on the most commonly used pipe schedules in various industries.
| Pipe Size (Inches) | Schedule 5S | Schedule 10S | Schedule 40S | Schedule 80S | Schedule 160S |
|---|---|---|---|---|---|
| 1/8" | 0.065" | 0.090" | 0.140" | 0.180" | 0.280" |
| 1/4" | 0.065" | 0.090" | 0.140" | 0.180" | 0.280" |
| 3/8" | 0.065" | 0.090" | 0.154" | 0.180" | 0.280" |
| 1/2" | 0.065" | 0.095" | 0.154" | 0.180" | 0.280" |
| 3/4" | 0.065" | 0.095" | 0.154" | 0.180" | 0.280" |
| 1" | 0.065" | 0.109" | 0.179" | 0.218" | 0.328" |
| 1 1/4" | 0.065" | 0.109" | 0.179" | 0.238" | 0.348" |
| 1 1/2" | 0.065" | 0.120" | 0.191" | 0.250" | 0.358" |
| 2" | 0.065" | 0.120" | 0.200" | 0.280" | 0.398" |
| 2 1/2" | 0.065" | 0.120" | 0.218" | 0.312" | 0.438" |
| 3" | 0.065" | 0.120" | 0.239" | 0.375" | 0.500" |
| 4" | 0.065" | 0.120" | 0.237" | 0.375" | 0.562" |
| 5" | 0.080" | 0.150" | 0.265" | 0.500" | 0.625" |
| 6" | 0.090" | 0.150" | 0.280" | 0.500" | 0.750" |
| 8" | 0.090" | 0.180" | 0.322" | 0.500" | 0.875" |
| 10" | 0.125" | 0.180" | 0.375" | 0.625" | 1.000" |
| 12" | 0.125" | 0.180" | 0.375" | 0.625" | 1.125" |
Note: These values are typical for SUS304 stainless steel in schedule 5S, 10S, 40S, 80S, and 160S. Variations in wall thickness may occur depending on pipe length, manufacturing process, and specifications.
Common Applications for Different Wall Thicknesses
Schedule 5S: Used for low-pressure applications such as ventilation ducts, heating, and air conditioning systems.
Schedule 10S: Common in chemical processing, water treatment, and low-pressure piping systems.
Schedule 40S: Standard thickness for general industrial piping systems, such as those in food and beverage and pharmaceutical manufacturing.
Schedule 80S: Suitable for medium to high-pressure systems like fire protection, hydraulic systems, and marine applications.
Schedule 160S: Ideal for high-pressure steam systems, nuclear applications, and heavy-duty industrial processes.
How is SS 304 Pipe Weight Calculated?
Calculating the weight of SS 304 pipes is essential for a variety of reasons, including determining transportation costs, ensuring structural integrity, and planning for the installation process. Here's a step-by-step guide to calculating the weight of SS 304 stainless steel pipes.
Formula for Calculating SS 304 Pipe Weight
The weight of a stainless steel pipe can be calculated using the following formula:
Weight (kg) = (π × (OD² - ID²) × Length × Density) / 4 × 1000
Where:
OD = Outer Diameter of the pipe (mm)
ID = Inner Diameter of the pipe (mm)
Length = Length of the pipe (m)
Density = The density of SS 304 (approximately 7.93 g/cm³ or 7930 kg/m³)
π = 3.1416 (constant)
Note: The formula accounts for the pipe's hollow nature, which is why the outer diameter and inner diameter are used to calculate the cross-sectional area.
If you have any questions about calculating the weight of 304 stainless steel pipes, please feel free to contact us. Our team is always ready to provide you with support and assistance!
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