Stainless Steel Pipe Weight Chart and Dimensions
Introduction
Mcneil Instrument provides a comprehensive stainless steel (SS) pipe weight chart to assist in calculating the weight and dimensions of pipes for various applications. The chart ensures accurate measurements, facilitating efficient transportation and installation. This information is applicable to a range of SS grades such as ASTM A312 TP304L, TP316, TP316L, TP321, TP347, SS202, and SS410, among others.
Stainless Steel Pipe Dimensions and Weight Chart
The weight of stainless steel pipes is calculated by multiplying the volume of the material by its density. Knowing the weight is essential for determining the load of an application system before construction.
Our weight chart applies to various grades of SS pipes, including:
ASTM A312 TP304L, TP316, TP316L, TP321, TP321H, TP347H, TP347, TP310S, TP304H, SS 202, SS 410, SS 317L, SS 310, SS 316H, and other 200, 300, & 400 series seamless pipes and tubes.
Below is a detailed chart showcasing the outer diameter, wall thickness, and corresponding weight for various schedules and dimensions:
| Nominal Bore | Outside Diameter (O.D) | Schedule 5S | Schedule 10S | Schedule 40S | Schedule 80S | Schedule 160S | Schedule XXS | ||||||
| Wt | Weight | Wt | Weight | Wt | Weight | Wt | Weight | Wt | Weight | Wt | Weight | ||
| mm | inches | mm | Kg./mt | mm | Kg./mt | mm | Kg./mt | mm | Kg./mt | mm | Kg./mt | mm | Kg./mt |
| 3 | 1/8 | 1.24 | 0.276 | 1.24 | 0.28 | 1.73 | 0.37 | 2.41 | 0.47 | – | – | – | – |
| 6 | 1/4 | 1.24 | 0.39 | 1.65 | 0.49 | 2.24 | 0.631 | 3.02 | 0.8 | – | – | – | – |
| 10 | 3/8 | 1.24 | 0.49 | 1.65 | 0.63 | 2.31 | 0.845 | 3.2 | 1.1 | – | – | – | – |
| 15 | 1/2 | 1.65 | 0.8 | 2.11 | 1 | 2.77 | 1.27 | 3.75 | 1.62 | 4.75 | 1.94 | 7.47 | 2.55 |
| 20 | 3/4 | 1.65 | 1.03 | 2.11 | 1.28 | 2.87 | 1.68 | 3.91 | 2.2 | 5.54 | 2.89 | 7.82 | 3.63 |
| 25 | 1 | 1.65 | 1.3 | 2.77 | 2.09 | 3.38 | 2.5 | 4.55 | 3.24 | 6.35 | 4.24 | 9.09 | 5.45 |
| 32 | 1 1/4 | 1.65 | 1.65 | 2.77 | 2.7 | 3.56 | 3.38 | 4.85 | 4.47 | 6.35 | 5.61 | 9.7 | 7.77 |
| 40 | 1 1/2 | 1.65 | 1.91 | 2.77 | 3.11 | 3.68 | 4.05 | 5.08 | 5.41 | 7.14 | 7.25 | 10.16 | 9.54 |
| 50 | 2 | 1.65 | 2.4 | 2.77 | 3.93 | 3.91 | 5.44 | 5.54 | 7.48 | 8.74 | 11.1 | 11.07 | 13.44 |
| 65 | 2 1/2 | 2.11 | 3.69 | 3.05 | 5.26 | 5.16 | 8.63 | 7.01 | 11.4 | 9.53 | 14.9 | 14.2 | 20.39 |
| 80 | 3 | 2.11 | 4.51 | 3.05 | 6.45 | 5.49 | 11.3 | 7.62 | 15.2 | 11.1 | 21.3 | 15.24 | 27.65 |
| 100 | 4 | 2.11 | 5.84 | 3.05 | 8.36 | 6.02 | 16.07 | 8.56 | 22.3 | 13.49 | 33.54 | 17.12 | 41.03 |
| 125 | 5 | 2.77 | 9.47 | 3.4 | 11.57 | 6.55 | 21.8 | 9.53 | 31.97 | 15.88 | 49.11 | 19.05 | 57.43 |
| 150 | 6 | 2.77 | 11.32 | 3.4 | 13.84 | 7.11 | 28.3 | 10.97 | 42.7 | 18.2 | 67.56 | 21.95 | 79.22 |
| 200 | 8 | 2.77 | 14.79 | 3.76 | 19.96 | 8.18 | 42.6 | 12.7 | 64.6 | 23 | 111.2 | 22.23 | 107.8 |
| 250 | 10 | 3.4 | 22.63 | 4.19 | 27.78 | 9.27 | 60.5 | 12.7 | 96 | 28.6 | 172.4 | 25.4 | 155.15 |
| 300 | 12 | 3.96 | 31.25 | 4.57 | 36 | 9.52 | 73.88 | 12.7 | 132 | 33.32 | 238.76 | 25.4 | 186.97 |
| 350 | 14 | 3.96 | 34.36 | 4.78 | 41.3 | 11.13 | 94.59 | 19.05 | 158.08 | 35.71 | 281.7 | – | – |
| 400 | 16 | 4.19 | 41.56 | 4.78 | 47.29 | 12.7 | 123.3 | 21.41 | 203.33 | 40.46 | 365.11 | – | – |
| 450 | 18 | 4.19 | 46.8 | 4.78 | 53.42 | 14.27 | 155.8 | 23.8 | 254.36 | 45.71 | 466.4 | – | – |
| 500 | 20 | 4.78 | 59.25 | 5.54 | 68.71 | 15.09 | 183.42 | 26.19 | 311.2 | 49.99 | 564.68 | – | – |
| 600 | 24 | 5.54 | 82.47 | 6.35 | 94.45 | 17.48 | 255.41 | 30.96 | 442.08 | 59.54 | 808.22 | – | – |
Key Features
1. Dimension Ranges:
- Length, outer diameter (OD), and wall thickness across various standards.
- Includes both seamless pipes and ERW pipes.
2. Applications:
- Pressure systems require specific grades and dimensions.
- Industries require precise weight for system build-up.
What Are Nominal Bore and Outside Diameter in Stainless Steel Pipes?
When determining critical attributes like tolerance and pressure levels, the Nominal Bore (NB) and Outside Diameter (OD) play a vital role:
- Outside Diameter (OD): This represents the pipe’s total external diameter, measured in mm or inches, based on the circumference of the pipe’s cross-section.
- Nominal Bore (NB): This refers to the pipe’s internal diameter, also measured in mm or inches, influenced by the wall thickness.
These measurements are essential for ensuring compatibility in various industrial and structural applications.
Stainless Steel Pipe Pressure Classifications
The stainless steel pipe weight chart integrates with pressure classes to determine the suitability of pipe dimensions for specific uses:
- Pressure Classes: 150, 300, 600, 2500, PN6 to PN64.
- Application Insight: Useful in evaluating system weights and transportation logistics.
Calculation Process
The weight is derived by:
- Calculating the volume of the stainless steel.
- Multiplying the volume by the density of the specific grade.
- Utilizing the chart values for efficient and accurate estimation.
How to Calculate Stainless Steel Pipe Weight
The calculation involves:
- Determining the volume of the pipe using its outer diameter, wall thickness, and length.
- Multiplying the volume by the density of the stainless steel material (specific to the grade used).
For instance:
- Grade Density Examples:
- SS 304L: ~7.93 g/cm³
- SS 316L: ~7.98 g/cm³
Formula:
Weight (kg/m)=(Outer Diameter−Wall Thickness)×Wall Thickness×Length×Density
Stainless Steel Pipe Tolerances
Stainless steel pipes adhere to stringent ASTM/ASME standards for reliability and durability. The table below summarizes the tolerances and testing requirements:
| Specification | Nominal Diameter (mm) | Outside Diameter Variation (mm) | Wall Thickness Variation (%) | Exact Length Tolerance (mm) | Testing | ||
| ASTM A213/ASME SA 213 Seamless Boiler, Superheater, and Heat Exchanger Tubes | < 25.4 | ±0.1016 |
| ±3.175 | Flattening Test | ||
| 25.4 – 38.1 incl. | ±0.1524 |
| ±3.175 | Tension Test | |||
| 50.8 – 63.5 excl. | ±0.254 |
| ±4.46 | Hardness Test | |||
| 76.2 – 101.6 incl. | ±0.381 |
| ±4.76 | Hydrostatic Test | |||
| ASTM A249/ASME SA 249 Welded Boiler, Superheater, Heat Exchanger, and Condenser Tubes | < 25.4 | ±0.1016 | ±10 | ±3.175 | Tension Test | ||
| 50.8 – 63.5 excl. | ±0.254 | ±10 | ±4.762 | Reverse Bend Test | |||
| 76.2 – 101.6 incl. | ±0.381 | ±10 | ±4.762 | Hydrostatic Test | |||
| ASTM A269/ASME SA 269 Seamless and Welded Tubing for General Service | < 12.7 | ±0.13 | -1 | ±3.2 | Flare Test (Seamless Only) | ||
| 12.7 – 38.1 excl. | ±0.13 | ±10 | ±3.2 | Flange Test (Welded Only) | |||
| 139.7 – 203.2 excl. | ±0.76 | ±10 | ±4.8 | Reverse Flattening Test (Welded Only) | |||
| ASTM A270/ASME SA 270 Seamless and Welded Sanitary Tubing | 25.4 | ±0.05 / ±0.20 | ±10 | ±3.2 | Reverse Flattening Test | ||
| 101.6 | ±0.08 / ±0.38 | ±10 | ±3.2 | Hydrostatic Test | |||
| ASTM A312/ASME SA 312 Seamless and Welded Pipes | 3.175 – 38.1 incl. | ±0.4 / ±0.79 | Minimum Wall -12.5% | ±6.4 | Tension Test | ||
| 101.6 – 203.2 incl. | ±1.59 / ±0.79 | ±6.4 | Hydrostatic Test | ||||
| ASTM A358/ASME SA 358 Welded Pipes | 219.08 – 750 incl. | ±0.5% / -0.3 | ±6.0 | Hydrostatic Test |
Understanding the Importance of SS Pipe Weight Chart
The SS pipe weight chart serves multiple purposes:
- Pressure Capacity Assessment: Helps determine the pressure classes (e.g., 150, 300, 600, etc.) suitable for various applications.
- Application Load Calculation: Facilitates the estimation of overall application weight, aiding transportation and installation.
- Material Selection: Assists in choosing the right grade and dimensions for specific requirements, ensuring safety and efficiency.
Stainless Steel Pipe Standard Sizes and Thickness
Stainless steel pipes are rated according to ANSI or ASME 36.19M standards to ensure consistency and reliability in industrial applications. The sizes range between 1/8 inches to 12 inches, catering to diverse requirements. Wall thicknesses vary as per the selected Schedule (SCH). For instance:
- SCH 10: Thickness ranges from 1.25 mm to 4.58 mm.
- SCH 40: Thickness ranges from 1.73 mm to 9.53 mm.
The selection of pipes depends significantly on the Schedule rating as it dictates the pipe’s pressure handling capability and application suitability. Therefore, it is crucial to select the appropriate size and thickness using the ASME chart.
DIN Standards for Stainless Steel Pipes
To maintain consistency in stainless steel pipe dimensions globally, the DIN EN ISO 1127 standard is implemented. It covers specifications from DIN 2462 (for seamless pipes) and DIN 2463 (for welded pipes). Key factors defined in this standard include:
- Pipe length
- Dimensional details
- Tolerance limits
Outer Diameter Classifications (D-Groups):
- D1: Tolerance of ±1.5%; Minimum diameter of ±0.75 mm
- D2: Tolerance of ±1%; Minimum diameter of ±0.5 mm
- D3: Tolerance of ±0.75%; Minimum diameter of ±0.3 mm
- D4: Tolerance of ±0.5%; Minimum diameter of ±0.1 mm
Wall Thickness Classifications (T-Groups):
- T1: Tolerance of ±15%; Minimum thickness of ±0.6 mm
- T2: Tolerance of ±12.5%; Minimum thickness of ±0.4 mm
- T3: Tolerance of ±10%; Minimum thickness of ±0.2 mm
- T4: Tolerance of ±7.5%; Minimum thickness of ±0.15 mm
- T5: Tolerance of ±5%; Minimum thickness of ±0.1 mm
By adhering to these DIN standards, Mcneil Instrument ensures that its stainless steel pipes are dimensionally accurate and meet global quality benchmarks for seamless and welded pipe manufacturing.
Stainless Steel Square Pipe & Tubing dimensions and weight chart
| Size Range (mm) | Thickness (mm) | Weight (Kg/Metre) |
| 20 x 20 | 2 | 1.11 |
| 25 x 25 | 2 | 1.43 |
| 25 x 25 | 2.5 | 1.74 |
| 25 x 25 | 3 | 2.04 |
| 30 x 30 | 2 | 1.74 |
| 30 x 30 | 2.5 | 2.14 |
| 30 x 30 | 3 | 2.51 |
| 30 x 30 | 3.2 | 2.65 |
| 40 x 40 | 2 | 2.37 |
| 40 x 40 | 2.5 | 2.92 |
| 40 x 40 | 3 | 3.45 |
| 40 x 40 | 4 | 4.46 |
| 40 x 40 | 5 | 5.4 |
| 50 x 50 | 2 | 3 |
| 50 x 50 | 2.5 | 3.71 |
| 50 x 50 | 3 | 4.39 |
| 50 x 50 | 4 | 5.72 |
| 50 x 50 | 5 | 6.97 |
| 50 x 50 | 6 | 8.2 |
| 50 x 50 | 8 | 10.5 |
| 60 x 60 | 3 | 5.34 |
| 60 x 60 | 3.2 | 5.67 |
| 60 x 60 | 3.6 | 6.34 |
| 60 x 60 | 4 | 6.97 |
| 60 x 60 | 5 | 8.54 |
| 70 x 70 | 2.5 | 5.28 |
| 70 x 70 | 3 | 6.28 |
| 70 x 70 | 3.5 | 7.25 |
| 70 x 70 | 3.6 | 7.46 |
| 70 x 70 | 4 | 8.23 |
| 70 x 70 | 5 | 10.1 |
| 70 x 70 | 8 | 15.29 |
| 70 x 70 | 10 | 19.13 |
| 80 x 80 | 3 | 7.22 |
| 80 x 80 | 3.5 | 8.35 |
| 80 x 80 | 3.6 | 8.59 |
| 80 x 80 | 4 | 9.48 |
| 80 x 80 | 5 | 11.7 |
| 80 x 80 | 6 | 13.8 |
| 80 x 80 | 6.3 | 14.4 |
| 80 x 80 | 8 | 17.83 |
| 80 x 80 | 10 | 21.88 |
| 90 x 90 | 3 | 8.16 |
| 90 x 90 | 3.5 | 9.45 |
| 90 x 90 | 3.6 | 9.72 |
| 90 x 90 | 4 | 10.7 |
| 90 x 90 | 5 | 13.3 |
| 90 x 90 | 6 | 15.7 |
| 90 x 90 | 6.3 | 16.4 |
| 90 x 90 | 8 | 20.32 |
| 90 x 90 | 10 | 25.53 |
| 100 x 100 | 3 | 9.1 |
| 100 x 100 | 4 | 12 |
| 100 x 100 | 5 | 14.8 |
| 100 x 100 | 6 | 17.6 |
| 100 x 100 | 6.3 | 18.4 |
| 100 x 100 | 8 | 22.9 |
| 100 x 100 | 10 | 27.86 |
| 100 x 100 | 12 | 33.44 |
| 120 x 120 | 4 | 14.5 |
| 120 x 120 | 5 | 18 |
| 120 x 120 | 6 | 21.3 |
| 120 x 120 | 6.3 | 22.3 |
| 120 x 120 | 8 | 27.9 |
| 120 x 120 | 10 | 34.13 |
| 120 x 120 | 12 | 39.94 |
| 120 x 120 | 16 | 54.64 |
| 140 x 140 | 6 | 25.97 |
| 140 x 140 | 8 | 32.89 |
| 140 x 140 | 10 | 41.15 |
| 150 x 150 | 4 | 18.3 |
| 150 x 150 | 5 | 22.7 |
| 150 x 150 | 6 | 27 |
| 150 x 150 | 6.3 | 28.3 |
| 150 x 150 | 8 | 35.4 |
| 150 x 150 | 10 | 43.47 |
| 150 x 150 | 12 | 53.48 |
| 150 x 150 | 16 | 65.05 |
| 160 x 160 | 6 | 27.39 |
| 160 x 160 | 8 | 36.9 |
| 160 x 160 | 10 | 46.88 |
| 180 x 180 | 5 | 27.97 |
| 180 x 180 | 6 | 33.26 |
| 180 x 180 | 8 | 43 |
| 180 x 180 | 10 | 53 |
| 180 x 180 | 12 | 61.01 |
| 180 x 180 | 16 | 81.3 |
| 200 x 200 | 5 | 31.18 |
| 200 x 200 | 6 | 37.09 |
Difference between Schedule 10, SCH 20 and SCH 40 pipe
| Schedule | Wall Thickness | Comparison |
| SCH 10 | Thinner wall | Thinnest among SCH 10, 20, and 40 |
| SCH 20 | Medium thickness | Thicker than SCH 10 but thinner than SCH 40 |
| SCH 40 | Thick wall | Thickest among the three, suitable for high-pressure applications |
Key Notes:
- Wall thickness varies depending on the pipe diameter, even within the same schedule rating.
- Larger diameter pipes have different thicknesses for the same schedule number.
- Verification is essential before selecting the right schedule for your application.
Standard Pipe Size Tolerance
The tolerance level for pipes is calculated based on the ASME Standard 999. According to this standard, stainless steel pipes typically have an under-tolerance of -0.031″ for all outer diameter (OD) measurements. When considering over-tolerance, the value increases in proportion to the external diameter of the pipes.
Pipe Thickness Tolerance as per ASME
Determining the exact thickness of stainless steel pipes is challenging, as it cannot solely be based on the bore and external diameter. Therefore, both parameters must be taken into account and compared with the ASME 999 chart to obtain an accurate understanding of the thickness. For seamless pipes, it’s worth noting that their actual thickness may deviate by up to 12.5% from the specified value.
Size differences between stainless steel seamless and welded pipes:
| Property | Seamless Pipes | Welded Pipes |
| Manufacturing Process | Single material sheet rolled into a long cylinder | Multiple lengths joined together with seams |
| External Diameter | Approximately 20 inches | Approximately 16 inches |
| Construction | No seams, continuous structure | Seams along the length of the pipe |
| Physical & Chemical Properties | More uniform in strength and composition | Seams may result in slightly lower strength at the weld points |
Why the Chart Is Essential
- System Optimization: Ensures accurate pressure and weight management.
- Material Selection: Facilitates the choice of appropriate grades and dimensions for specific projects.
- Ease of Transport: Helps in planning logistics by knowing exact weights beforehand.