Stainless Steel Pipe Weight Chart (kg/m & lb/ft)

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Use this stainless steel pipe weight chart to quickly find weight per meter and per foot for standard ASME/ASTM Stainless Steel pipes from NPS 1/8" to 24" across Sch 5S to Sch 160/XXS. The tables below combine NPS, DN, OD, wall thickness and theoretical weights so engineers, buyers and fabricators can size, estimate and plan with confidence.

Quick Stainless Steel Pipe Weight Lookup

Common Stainless Steel pipe sizes with theoretical weight per meter and per foot at Sch 40S.

NPS (inch) OD (mm) Schedule Weight (kg/m) Weight (lb/ft)
1/2 21.3 40S 1.27 0.85
1 33.4 40S 2.50 1.68
2 60.3 40S 5.44 3.65
4 114.3 40S 16.07 10.79

Stainless Steel Pipe Weight per Meter (NPS 1/8"–24", Sch 5S–160)

This chart lists NPS, NB, DN, OD, schedule, wall thickness, and theoretical weight in kg/m and lb/ft for standard Stainless Steel pipes.

NPS (inch) OD (mm) Schedule Weight (kg/m) Weight (lb/ft)
1/2 21.3 40S 1.27 0.85
1 33.4 40S 2.50 1.68
2 60.3 40S 5.44 3.65
4 114.3 40S 16.07 10.79

Round SS Pipe Weight Chart (ASME B36.19M / ASTM A312)

NPS (inch) NB (mm) DN (mm) OD (mm) Schedule Wall Thickness (mm) Weight (kg/m) Weight (lb/ft)
1/2 15 DN15 21.3 10S 2.11 1.00 0.67
1/2 15 DN15 21.3 40S 2.77 1.27 0.85
1/2 15 DN15 21.3 80S 3.73 1.62 1.09
4 100 DN100 114.3 10S 3.05 8.36 5.61
4 100 DN100 114.3 40S 6.02 16.07 10.79
4 100 DN100 114.3 80S 8.56 22.30 14.98
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Stainless Steel Pipe Weight per Meter by Schedule

The table below provides the Stainless Steel weight per meter across multiple schedules for each NB/NPS.

NB (mm) NPS (inch) OD (mm) Sch 5S Wt (kg/m) Sch 10S Wt (kg/m) Sch 40S Wt (kg/m) Sch 80S Wt (kg/m) Sch 160 Wt (kg/m) XXS Wt (kg/m)
20 3/4 26.7 – 1.28 1.69 2.20 2.89 3.63
100 4 114.3 5.84 8.37 16.08 22.32 33.54 41.02

Stainless Steel Pipe Weight per Foot (lb/ft) –ANSI Schedule Chart

Theoretical weight per foot for Stainless Steel pipes by NPS and schedule, based on ASME/ANSI pipe data.

Pipe Schedule vs OD, Wall Thickness, Weight per Foot

Pipe Size NPS (inch) OD (inch) Schedule Wall Thickness (inch) Weight (lb/ft)
1/2 0.840 40 0.109 0.85
1/2 0.840 80 0.147 1.09
4 4.500 40 0.237 10.79
4 4.500 80 0.337 14.98

SS 304 & SS 316 Pipe Weight Charts (Common Sizes)

Typical SS 304 and SS 316 pipe weights per meter for frequently used sizes are mentioned below. Use the full chart below for the complete range.

SS 304 Pipe Weight per Meter

NPS (inch) NB (mm) OD (mm) Schedule Wall Thickness (mm) Weight (kg/m)
1/2 15 21.3 40S 2.77 1.27
1 25 33.4 40S 3.38 2.50
4 100 114.3 40S 6.02 16.07

SS 316 Pipe Weight per Meter (Optional)

NPS (inch) NB (mm) OD (mm) Schedule Wall Thickness (mm) Weight (kg/m)
1/2 15 21.3 40S 2.77 1.27

Welded Stainless Steel Pipe Weight Chart (DN-based)

Approximate weights for welded Stainless Steel pipes by DN, including weight per meter and weight of a 6 m length.

DN (mm) NPS (inch) ID (mm) Wall Thickness (mm) OD (mm) Weight (kg/m) Weight of 6 m Length (kg)
15 1/2 15.0 2.75 21.5 1.25 7.50
25 1 25.0 3.25 33.5 2.42 14.52

NPS, NB and DN Size Conversion Table

Conversion between NPS (inch), DN (mm), NB (mm) and outside diameter for standard Stainless Steel pipe sizes.

NPS (inch) DN (mm) NB (mm) OD (mm)
1/2 DN15 15 21.3
1 DN25 25 33.4
2 DN50 50 60.3
4 DN100 100 114.3
8 DN200 200 219.1

Stainless Steel Pipe Weight Formula (kg/m & lb/ft)

Conversion between NPS (inch), DN (mm), NB (mm) and outside diameter for standard Stainless Steel pipe sizes.

How to Calculate Stainless Steel Pipe Weight per Meter?

Theoretical weight per meter (kg/m) for Stainless Steel pipe can be calculated using:
Weight (kg/m) = (OD − WT) × WT × 0.0248
where OD and WT are in millimetres.

How to Calculate Stainless Steel Pipe Weight per Foot?

Weight per foot (lb/ft) can be calculated as:
Weight (lb/ft) = (OD − WT) × WT × 0.00756 (OD and WT in millimetres)
or using imperial dimensions:
Weight (lb/ft) = 10.69 × (OD − WT) × WT (OD and WT in inches).

Standards and Tolerances Reference

Dimensions and theoretical weights in these charts are based on ASME B36.19M Stainless Steel pipe dimensions and related ASTM specifications, such as ASTM A312 for seamless and welded austenitic Stainless Steel pipes. Actual weights may vary within permissible manufacturing tolerances.

Frequently Asked Questions:

How do you calculate Stainless Steel pipe weight per meter? +
Stainless Steel pipe weight per meter can be calculated using:
Weight per meter (kg/m) = (OD − WT) × WT × 0.0248, with OD and wall thickness in millimetres.
How do you calculate Stainless Steel pipe weight per foot? +
The Stainless Steel pipe weight per foot can be calculated using:
Weight per foot (lb/ft) = (OD − WT) × WT × 0.00756 (OD and WT in mm), or 10.69 × (OD − WT) × WT when dimensions are in inches.
Which schedules are covered in this SS pipe weight chart? +
The charts cover standard ASME stainless steel pipe schedules from Sch 5S and 10S up to Sch 40S, 80S, 160 and XXS for NPS 1/8" to 24".
What is the difference between NPS, NB and DN in pipe sizes? +
NPS is the nominal pipe size in inches, NB is the nominal bore in millimetres, and DN is the ISO nominal diameter; the outside diameter is fixed for each NPS while NB/DN values vary slightly by standard.
Are these stainless steel pipe weights theoretical or actual? +
The tables provide theoretical weights based on standard dimensions and typical Stainless Steel density. Actual weights may vary based on thickness tolerances and manufacturing variations.
Do these weight charts apply to both seamless and welded pipes? +
For the same NPS, schedule and grade, the theoretical weight is the same for seamless and welded pipe; only tolerances and weld bead profile can cause minor differences in actual weight.