MS Square Pipe Weight Chart & Calculation: The Definitive Guide for Structural Integrity

For structural and procurement professionals, having the most accurate MS Square Pipe Weight Chart is non-negotiable for project safety and cost control. The theoretical weight of a Square Hollow Section (SHS), commonly known as an MS square pipe, is the single most critical factor for precise load-bearing calculations and material procurement planning. This definitive guide provides the exact formula, an extensive weight chart based on Indian Standards (IS), and essential insights into why precise weight measurement—and trusted sourcing—is vital for your success.

The MS Square Pipe Weight Calculation Formula

The theoretical weight of an MS square pipe is derived from its volume and the density of the mild steel. This calculation determines the weight per linear meter ($\text{kg/m}$) for a given size and thickness.

The Fundamental Formula

The weight of a square pipe per meter is calculated using the following engineering formula:

Step-by-Step Calculation Breakdown

The Cross-Sectional Area is the area of the steel material itself, which is the Outer Area minus the Inner Hollow Area.

For an MS Square Pipe (SHS), where $A$ is the outer side length (in meters) and $T$ is the wall thickness (in meters):

1. Outer Area (m²): A2
2. Inner Area (m²): (A−2T)2
3. Cross-Sectional Area (m²): A2−(A−2T)2
4. Density of Mild Steel ($\rho$): 7850 kg/m3 (Standard approximation)

Example Calculation (40×40 mm, 3.0 mm thick):

• $A=40\text{ mm}=0.040\text{ m}$
• $T=3.0\text{ mm}=0.003\text{ m}$
• $\text{Inner Side}=0.040\text{ m}-2(0.003\text{ m})=0.034\text{ m}$
• CSA=(0.040)2−(0.034)2=0.0016−0.001156=0.000444 m2
• Weight (kg/m)=0.000444 m2×7850 kg/m3≈3.486 kg/m

2. Comprehensive MS Square Pipe Weight Chart (IS 4923)

The following chart provides the theoretical weight per meter (in $\text{kg/m}$) for common Mild Steel Square Hollow Sections (SHS), conforming to the dimensional requirements of IS 4923 structural steel standards.

Data sourced from standard published tables aligned with IS 4923. Minor variations may occur based on manufacturer-specific tolerances.

3. Beyond the Chart: Real-World Weight Factors

The theoretical weight is a crucial starting point, but procurement professionals must account for real-world manufacturing and material variances.

A. Importance of IS 4923 Grade and Standard

For structural applications in India, MS square pipes must adhere to IS 4923: Specification for Steel Hollow Sections for Structural Use. This standard defines critical properties, including:

The grade affects material density, which can slightly alter the final theoretical weight. Always specify the IS grade required for your engineering needs.

B. Understanding Weight Tolerances

No manufacturing process is perfect. Indian Standards (IS 4923) legally permit a degree of variance between the theoretical and the actual (measured) weight of the pipe.

Expert Tip: Sachiya Steel International Private Limited ensures all material, regardless of minor accepted tolerances, is supplied with full Material Test Certificates (MTCs). This guarantees the pipe’s chemical composition and mechanical strength (Yield Strength, Tensile Strength) meet the specified IS 4923 grade, ensuring true structural reliability despite minor weight variance.

4. Why Partner with Sachiya Steel International Private Limited?

Calculating the weight is the first step; securing guaranteed quality steel is the next. As a leading stockist and supplier, Sachiya Steel International Private Limited guarantees material that exceeds industry expectations.

• Precision and Verification: We provide material strictly adhering to the specified IS 4923 standards. Our internal QA processes minimize weight variance, often delivering closer to theoretical weight than industry competitors.
• Ready Stock & Global Logistics: Our inventory spans all critical SHS and RHS sizes, grades (YST 210 to YST 355), and thicknesses, ready for immediate delivery across India and for export.
• Value-Driven Costing: Our accurate weight calculations and optimized logistics ensure you pay for precisely the material you receive, leading to better cost planning and significant project savings.

Do not compromise on the foundation of your project. Trust the precision, certification, and quality assurance of Sachiya Steel International.

Contact us today for a technical consultation and the most competitive quote on IS 4923 MS Square Pipes.