Carbon Steel Density: Complete Guide for Steel Pipe Weight Calculation
The density of carbon steel is a key engineering parameter for calculating steel pipe weight, transportation costs, and structural design.
As an experienced carbon steel pipe manufacturer, Cortec Steel uses the standard density value of 7850 kg/m³ for pipe weight calculations, ensuring accurate estimation for project planning and material selection.
For steel pipes, density enables engineers to calculate the theoretical weight based on the outside diameter, wall thickness, and length.
What is Carbon Steel Density?
Carbon Steel Density refers to the mass per unit volume of carbon steel material.
ρ=m/v
|
Symbol |
Meaning |
Unit |
|---|---|---|
|
ρ (rho) |
Density |
kg/m³ |
|
m |
Mass |
kg |
|
V |
Volume |
m³ |
Standard Density of Carbon Steel
|
Unit |
Value |
|---|---|
|
kg/m³ |
7850 kg/m³ |
|
g/cm³ |
7.85 g/cm³ |
|
lb/in³ |
0.283 lb/in³ |
In engineering calculations, the following formula is typically used: ρ = 7850 kg/m³
Carbon Steel Pipe Weight Chart (kg/m)
Formula based on carbon steel density: 7.85 g/cm³ (7850 kg/m³)
|
Nominal Size (NPS) |
Outside Diameter (OD) mm |
Wall Thickness (WT) mm |
Weight kg/m |
|---|---|---|---|
|
1" |
33.4 |
3.38 |
2.59 |
|
1 1/4" |
42.2 |
3.56 |
3.39 |
|
1 1/2" |
48.3 |
3.68 |
4.05 |
|
2" |
60.3 |
3.91 |
5.44 |
|
2 1/2" |
73.0 |
5.16 |
8.63 |
|
3" |
88.9 |
5.49 |
11.29 |
|
4" |
114.3 |
6.02 |
16.00 |
|
5" |
141.3 |
6.55 |
21.68 |
|
6" |
168.3 |
7.11 |
28.26 |
|
8" |
219.1 |
8.18 |
42.55 |
|
10" |
273.0 |
9.27 |
61.10 |
|
12" |
323.9 |
10.31 |
80.70 |
|
14" |
355.6 |
11.13 |
95.70 |
|
16" |
406.4 |
12.70 |
125.00 |
|
18" |
457.2 |
14.27 |
158.00 |
|
20" |
508.0 |
15.09 |
186.00 |
|
24" |
610.0 |
17.48 |
258.00 |
|
30" |
762.0 |
19.05 |
354.00 |
|
36" |
914.0 |
22.00 |
493.00 |
|
42" |
1067.0 |
25.00 |
648.00 |
|
48" |
1219.0 |
25.40 |
760.00 |
Carbon Steel Pipe Weight Chart by Length
12 Meter Carbon Steel Pipe Weight
|
OD mm |
WT mm |
Weight kg/m |
Weight per 6m Pipe kg |
Weight per 12m Pipe kg |
|---|---|---|---|---|
|
114.3 |
6.02 |
16.00 |
96.0 |
192.0 |
|
168.3 |
7.11 |
28.26 |
169.6 |
339.1 |
|
219.1 |
8.18 |
42.55 |
255.3 |
510.6 |
|
273.0 |
9.27 |
61.10 |
366.6 |
733.2 |
|
323.9 |
10.31 |
80.70 |
484.2 |
968.4 |
|
355.6 |
11.13 |
95.70 |
574.2 |
1148.4 |
|
406.4 |
12.70 |
125.00 |
750.0 |
1500.0 |
|
508.0 |
15.09 |
186.00 |
1116.0 |
2232.0 |
|
610.0 |
17.48 |
258.00 |
1548.0 |
3096.0 |
|
914.0 |
22.00 |
493.00 |
2958.0 |
5916.0 |
Why is the density of carbon steel approximately 7850 kg/m³?
Main components of carbon steel:
|
Element |
Content |
|---|---|
|
Iron (Fe) |
≥98% |
|
Carbon (C) |
0.05–2.0% |
|
Manganese (Mn) |
≤1.5% |
|
Silicon (Si) |
small amount |
|
Other elements |
trace |
Since the main component is iron (Fe), and the density of iron is approximately 7.87 g/cm³, the density of ordinary carbon steel is approximately 7.85 g/cm³.
Density comparison of different carbon steel types
|
Material |
Density |
|---|---|
|
Low Carbon Steel (Mild Steel) |
7.85 g/cm³ |
|
Medium Carbon Steel |
7.85 g/cm³ |
|
High Carbon Steel |
7.80–7.85 g/cm³ |
|
Carbon Steel Pipe |
7.85 g/cm³ |
|
Stainless Steel 304 |
7.93 g/cm³ |
|
Stainless Steel 316 |
7.98 g/cm³ |
|
Aluminum |
2.70 g/cm³ |
Variations in carbon content have a very small impact on density. In engineering calculations: All carbon steel grades use 7850 kg/m³ as the standard density.
Although carbon steel grades have similar density values, their mechanical properties and applications vary. Cortec Steel supplies carbon steel pipes in multiple grades, including ASTM A53, ASTM A106, API 5L, and structural steel grades, according to different project requirements.
How to Calculate Carbon Steel Pipe Weight Using Density?
Based on: Weight = Volume × Density, therefore: W = V × ρ
Pipe Weight Calculation
Volume = Cross Section Area × Length
W = π/4(OD²−ID²)Lρ
|
Symbol |
Explanation |
|---|---|
|
W |
Pipe Weight |
|
OD |
Outside Diameter |
|
ID |
Inside Diameter |
|
WT |
Wall Thickness |
|
L |
Pipe Length |
|
ρ |
Carbon Steel Density |
Engineering Simplified Formula
For steel pipes: Weight kg/m: Weight (kg/m) = 0.02466 × (OD − WT) × WT
Carbon Steel Density of Common Steel Pipe Grades
|
Steel Grade |
Standard |
Density |
|---|---|---|
|
ASTM A106 Carbon Steel Pipe |
ASTM A106 |
7.85 g/cm³ |
|
ASTM A53 Carbon Steel Pipe |
ASTM A53 |
7.85 g/cm³ |
|
API 5L Line Pipe |
API 5L |
7.85 g/cm³ |
|
Q235 Steel Pipe |
GB/T 3091 |
7.85 g/cm³ |
|
S235 Structural Pipe |
EN 10219 |
7.85 g/cm³ |
Carbon Steel Density and Pipe Solutions from Cortec Steel
Understanding carbon steel density is essential for accurate steel pipe weight calculation and project planning. Cortec Steel supplies high-quality carbon steel pipes manufactured according to international standards, providing reliable solutions for oil & gas, construction, water, and industrial applications
FAQ
What is the density of carbon steel?
Carbon steel density is approximately 7850 kg/m³.
Is carbon steel density the same as mild steel?
Yes. Mild steel density is approximately 7.85 g/cm³.
Does carbon content affect steel density?
Only slightly; engineering calculations use 7850 kg/m³.
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