Free · Calculator 8
Pipe weight and support load
Weight per meter from pipe, contents, insulation and cladding – and the load per support for operation and hydrostatic pressure test.
Rechner wird geladen …
Basis & sources
What the tool calculates with, which standards and data it relies on and where its limits are. As of September 2026. For practice: Understand it and try it out.
Calculation method
- PipeCross-section × density + allowance for flanges/fittings
- ContentsInner cross-section × density of the medium
- InsulationAnnular cross-section × bulk density + sheet metal cladding
- Support(q × support span + point load) × g
Standards & codes
Reference: the assistant follows Autodesk's file structure and the connection types of these standards. Standard texts and standard tables are not included.
| EN 10220 / DIN EN ISO 1127, ASME B36.10/B36.19 | Pipe dimensions via the Piping Spec Calculator |
|---|
Data & origin
| Pipe dimensions | Piping Spec Calculator – estimates from manufacturer data |
|---|---|
| Densities of material, medium, insulation, cladding | as in the Support Span Calculator – guide values, editable in the calculator |
Assumptions & limits
- End supports and supports next to valves carry more; anchor points additionally carry friction, expansion and internal pressure forces.
- Pressure test: line filled with water – decisive for gas lines.
Standards status for this page 3 standards · researched September 2026
| Standard | Contents | Current edition | Replaced / successor |
|---|---|---|---|
| DIN EN 10220 | Seamless and welded steel tubes – General tables of dimensions and masses per unit length | DIN EN 10220:2003-03 | replaces DIN V ENV 10220:1994-02; DIN 2448:1981-02; DIN 2458:1981-02 |
| DIN EN ISO 1127 | Stainless steel tubes – Dimensions, tolerances and conventional masses per unit length | DIN EN ISO 1127:2019-03 | replaces DIN EN ISO 1127:1997-03 |
| ASME B36.10 (until 2018: B36.10M) | Welded and Seamless Wrought Steel Pipe | ASME B36.10-2022 | replaces ASME B36.10M-2018 |
Researched at DIN Media, ISO, IEC and ASME, as of September 2026. Before binding use, please check the current edition with the standards publisher. Overview of all standards: Plant Engineering Infobase · Standards status.
Understand it and try it out
How heavy is a pipeline – empty, in operation and during the pressure test? The weight determines how strong supports, steel structures and pipe racks need to be.
The terms in five minutes
- Weight per meter q
- Weight per meter of line in kg/m. Sum of pipe, contents, insulation and sheet metal cladding.
- Pipe cross-section
- A = π/4 · (Da² − di²). Multiplied by the density (steel 7.85 kg/dm³), this gives the pipe weight per meter.
- Contents
- π/4 · di² times the density of the medium. With water, the contents are often almost as heavy as the steel pipe itself.
- Insulation and cladding
- Annular area of the insulation times its bulk density, plus the sheet metal cladding. A large share for small pipes with thick insulation.
- Load per support
- F = q · support span · g (+ point loads such as valves). The support span comes from the Support Span Calculator.
- Hydrostatic pressure test
- Gas and steam lines are also often pressure-tested with water – the supports then carry the full water load.
Try it out and understand it
Change one value in the calculator above and watch what happens to the others:
| Try it | What happens | Why |
|---|---|---|
| Change the medium from "empty/gas" to water (DN 100) | The weight per meter rises from around 10 to 19 kg/m. | At DN 100, the water filling weighs almost as much as the pipe. |
| Add 100 mm mineral wool with sheet metal cladding | At DN 25 the load more than doubles, at DN 300 it is only around 10% more. | The insulation weight grows roughly with the diameter, pipe and contents grow roughly with the cross-section. |
| Thin-walled stainless steel instead of steel | The pipe becomes considerably lighter, the water filling remains. | Thinner wall (EN ISO 1127) – similar density, but less material. |
| Pressure test instead of operation for a steam line | The support load jumps up. | That is why support planning always includes the pressure test load case. |
Typical mistakes
- Calculating only the empty pipe and forgetting the pressure test.
- Not applying valves and flanges as point loads – a DN 150 butterfly valve can easily weigh 50 kg.
- Mixing up kg and kN: 100 kg ≈ 0.98 kN.
For practice
Exercise: steel pipe 114.3 × 3.6 mm filled with water, support span 5 m, without insulation. What load does a support in the middle of a long line carry?
Show solution
Pipe: π/4 · (114.3² − 107.1²) = 1,252 mm² → 1,252 · 10⁻⁶ m² · 7,850 kg/m³ ≈ 9.8 kg/m. Water: π/4 · 107.1² = 9,009 mm² → ≈ 9.0 kg/m. Total ≈ 18.8 kg/m. Per support (tributary length = support span 5 m): 94 kg ≈ 0.92 kN. With an allowance for flanges and fittings, you calculate a bit more.
For training and studies: this page may be shown in class. Property values are guide values; for verification, the standards and manufacturer data apply.
What is the calculator for?
Why you need it
Supports, pipe racks, floors and steel structures are sized according to the loads of the lines. Structural design needs these loads early – and often the decisive case is not operation but the water-filled line during the pressure test.
Which tasks it solves
- What load does the line transfer per support – in operation and during the hydrostatic pressure test?
- How heavy is the entire line (from the PCF) for the load plan and cost estimate?
- Which point loads (valves) need to be added?
- Does the support span match the weight? – continue with the Support Span Calculator
When in the design process
- Basics / preliminary design–
- Basic engineeringLoad data for pipe racks, floors and steel structures (load plan)
- Detail engineeringSelect supports, define support spans
- Installation / commissioningTransport weight of prefabricated pipe spools, lifting equipment
- Operation / modification of existing plantsNew line on an existing structure – can the support carry it?
Frequently asked questions
Why a hydrostatic pressure test?
Gas and steam lines are often tested with water – the supports are then loaded considerably more than in operation.
Preliminary sizing for design work – not a verification. Dimensions and material properties come from the ASEING Piping Spec Calculator and Support Span Calculator and are estimates from publicly available manufacturer data, generalized; all other values are guide values. They may deviate from the standard – check against the applicable standards and manufacturer data before binding use. You can enter your own values in the calculator.