How much does a 304 seamless steel pipe weigh? The specific weight of a 304 seamless steel pipe depends on its outer diameter (OD), wall thickness (WT), and length. Without these parameters, it's impossible to give a specific weight. With these parameters, you can calculate the weight of a 304 seamless steel pipe. Nansteel Manufacturing Co., Ltd has carefully summarized the method for calculating the weight of 304 seamless steel pipe.
Brief introduction of 304 seamless steel pipe
304 seamless steel pipe is made of 304 stainless steel through hot rolling, perforation and cold drawing processes. Due to the advantages of its chromium-nickel alloy composition, it has excellent corrosion resistance, good toughness and weldability, and can operate stably in humid and slightly corrosive environments.
As a common industrial seamless pipe, it is widely used in food processing, chemical transportation, water supply and drainage, medical equipment, and other fields. It can be used as a food-grade fluid pipeline and also meets the corrosion-resistant piping requirements of chemical equipment. Its seamless structure also enhances overall pipe strength and reduces leakage, further expanding its application in high-pressure and high-precision applications. It is a high-quality seamless pipe choice that balances performance and safety.
How to calculate the weight of 304 seamless steel pipe?
The basic principle for calculating the weight of a steel pipe is: volume × density.
1. Density of 304 stainless steel
The density of 304 stainless steel typically ranges from 7.93 grams per cubic centimeter (g/cm³) to 8.0 grams per cubic centimeter (g/cm³), or approximately 7930 kilograms per cubic meter (kg/m³) to 8000 kilograms per cubic meter (kg/m³).
For the convenience of calculation, 7.93 g/cm³ or 7930 kg/m³ is usually taken.
2. Calculation formula
Metric Units (commonly used): Weight (kg/meter) = [Outer Diameter (mm) − Wall Thickness (mm)] × Wall Thickness (mm) × 0.02491
Here, 0.02491 is a constant that combines the density of 304 stainless steel and unit conversion.
Example:
Assume that the outer diameter (OD) of a 304 seamless steel pipe is DN100 (about 114.3 mm), the wall thickness (WT) is SCH40S (about 6.02 mm), and the length is 1 meter.
Weight (kg/m) = (114.3 − 6.02) × 6.02 × 0.02491
Weight (kg/m) = 108.28 × 6.02 × 0.02491
Weight (kg/m) ≈ 16.27 kg/m
If this pipe is 6 meters long, the total weight is 16.27 kg/m × 6 meters ≈ 97.62 kg.
Why do you need specific dimensions to know the weight?
The weight of a steel pipe is the result of its cross-sectional area (circular area) multiplied by its length and then multiplied by the material density. Different outer diameters and wall thicknesses will result in very different cross-sectional areas, and therefore huge differences in weight.
For example, for the same 304 seamless steel pipe:
A small-sized pipe (e.g., 21.3mm outer diameter, 2.11mm wall thickness) might weigh only about 1.02 kg per meter.
A large-sized pipe (e.g., 219.08mm outer diameter, 8.18mm wall thickness) might weigh about 43.20 kg per meter.
How to get the accurate weight of a 304 seamless steel pipe?
To obtain the exact weight of your required 304 seamless steel pipe, please provide the following information:
Outside Diameter (OD)
Wall Thickness (WT)
Total Length
With this data, you can calculate it yourself using the formula above (weight = [outer diameter (mm) − wall thickness (mm)] × wall thickness (mm) × 0.02491 * length (m)), or ask your supplier for accurate weight data. Many steel pipe suppliers and online tools provide steel pipe weight calculators.
Read more: Passivation Treatment Time of Seamless Pipe
Brief introduction of 304 seamless steel pipe
304 seamless steel pipe is made of 304 stainless steel through hot rolling, perforation and cold drawing processes. Due to the advantages of its chromium-nickel alloy composition, it has excellent corrosion resistance, good toughness and weldability, and can operate stably in humid and slightly corrosive environments.
As a common industrial seamless pipe, it is widely used in food processing, chemical transportation, water supply and drainage, medical equipment, and other fields. It can be used as a food-grade fluid pipeline and also meets the corrosion-resistant piping requirements of chemical equipment. Its seamless structure also enhances overall pipe strength and reduces leakage, further expanding its application in high-pressure and high-precision applications. It is a high-quality seamless pipe choice that balances performance and safety.
How to calculate the weight of 304 seamless steel pipe?
The basic principle for calculating the weight of a steel pipe is: volume × density.
1. Density of 304 stainless steel
The density of 304 stainless steel typically ranges from 7.93 grams per cubic centimeter (g/cm³) to 8.0 grams per cubic centimeter (g/cm³), or approximately 7930 kilograms per cubic meter (kg/m³) to 8000 kilograms per cubic meter (kg/m³).
For the convenience of calculation, 7.93 g/cm³ or 7930 kg/m³ is usually taken.
2. Calculation formula
Metric Units (commonly used): Weight (kg/meter) = [Outer Diameter (mm) − Wall Thickness (mm)] × Wall Thickness (mm) × 0.02491
Here, 0.02491 is a constant that combines the density of 304 stainless steel and unit conversion.
Example:
Assume that the outer diameter (OD) of a 304 seamless steel pipe is DN100 (about 114.3 mm), the wall thickness (WT) is SCH40S (about 6.02 mm), and the length is 1 meter.
Weight (kg/m) = (114.3 − 6.02) × 6.02 × 0.02491
Weight (kg/m) = 108.28 × 6.02 × 0.02491
Weight (kg/m) ≈ 16.27 kg/m
If this pipe is 6 meters long, the total weight is 16.27 kg/m × 6 meters ≈ 97.62 kg.
Why do you need specific dimensions to know the weight?
The weight of a steel pipe is the result of its cross-sectional area (circular area) multiplied by its length and then multiplied by the material density. Different outer diameters and wall thicknesses will result in very different cross-sectional areas, and therefore huge differences in weight.
For example, for the same 304 seamless steel pipe:
A small-sized pipe (e.g., 21.3mm outer diameter, 2.11mm wall thickness) might weigh only about 1.02 kg per meter.
A large-sized pipe (e.g., 219.08mm outer diameter, 8.18mm wall thickness) might weigh about 43.20 kg per meter.
How to get the accurate weight of a 304 seamless steel pipe?
To obtain the exact weight of your required 304 seamless steel pipe, please provide the following information:
Outside Diameter (OD)
Wall Thickness (WT)
Total Length
With this data, you can calculate it yourself using the formula above (weight = [outer diameter (mm) − wall thickness (mm)] × wall thickness (mm) × 0.02491 * length (m)), or ask your supplier for accurate weight data. Many steel pipe suppliers and online tools provide steel pipe weight calculators.
Read more: Passivation Treatment Time of Seamless Pipe
