Square MS Pipe
Weight Chart
in Kilograms
The most comprehensive square MS pipe weight chart in kg per metre — covering every standard SHS (Square Hollow Section) size from 20×20 mm to 200×200 mm across wall thickness 1.6 mm to 6 mm. Free reference for fabricators, contractors, and project engineers across India.
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Send EnquiryFill the contact form Join WhatsApp ChannelDaily rate updatesThis page provides the complete square MS pipe weight chart in kg per metre for all standard IS 4923 sizes. Whether you are a fabricator estimating freight, a contractor preparing a BOQ, or a steel trader quoting a project — this square MS pipe weight chart gives you accurate, standard-compliant weight data for every SHS size from 20×20 mm to 200×200 mm, across wall thickness options from 1.6 mm to 6 mm. All values are based on IS 4923:1997 and calculated at the standard steel density of 7.85 g/cm³.
- What Is a Square MS Pipe (SHS)? — IS 4923, dimensions, applications
- Square MS Pipe Cross-Section & Dimensions Explained
- Square MS Pipe Weight Chart in KG Per Metre — Full IS 4923 table
- How to Calculate Square MS Pipe Weight — Formula + worked examples
- Wall Thickness Guide for Square MS Pipe
- Where Square MS Pipes Are Used
- Square MS Pipe vs Round MS Pipe — Weight & Usage
- Buying Guide — How Weight Determines Price
- FAQ — Square MS Pipe Weight Chart
What Is a Square MS Pipe? Understanding the SHS Product
Square Hollow Section (SHS) • IS 4923:1997 • ERW Manufacturing
A square MS pipe — technically called a Square Hollow Section (SHS) — is a closed, hollow structural steel section with equal width and height and a uniform wall thickness on all four sides. It is manufactured from mild steel (MS) and is one of the most widely used structural and fabrication steel products in India. Before reading the square MS pipe weight chart, it helps to understand what determines the weight and why it matters.
How Square MS Pipes Are Made
Square MS pipes are manufactured using the Electric Resistance Welding (ERW) process. A flat steel strip (skelp) is first roll-formed into a circular tube, then progressively reshaped through a series of forming rolls into a square section. The seam is fused using electrical current — no filler material is used. The finished tube is cut to standard lengths (typically 6 metres per piece) and bundled for dispatch.
The IS 4923 standard mandates specific tolerances on outer dimensions, wall thickness, straightness, and corner radius. Hot-formed SHS sections are available for larger, thicker sizes where cold forming is not practical.
Why the Square MS Pipe Weight Chart Matters
Steel is sold by the tonne — but used by the metre. The square MS pipe weight chart in kg per metre bridges this gap. It lets you:
• Convert a per-tonne mill price into a per-metre or per-piece cost
• Estimate the total freight weight of a consignment
• Prepare accurate Bill of Quantities (BOQ) for tendering
• Verify that delivered material meets the specified wall thickness
• Compare Light vs Heavy class pipes on a cost-per-kg basis
Without this chart, you are guessing — and guessing in steel procurement always costs money.
Square MS Pipe Cross-Section — Dimensions & Weight Chart Parameters
OD • Wall Thickness • Inner Dimension • Corner Radius
Every value in the square MS pipe weight chart is derived from just two dimensions: the outer size (OD) in mm and the wall thickness (t) in mm. The cross-section diagram below shows how these dimensions relate to each other and to the final weight per metre.
Key Dimensional Terms in the Square MS Pipe Weight Chart
OD (Outer Dimension): The external width/height of the square section in mm. For example, 50×50 means OD = 50 mm on all four sides. This is the dimension you specify when ordering.
Wall Thickness (t): The thickness of the steel on each face, in mm. This is the single most important variable in the weight chart — doubling the wall thickness nearly doubles the weight per metre.
ID (Inner Dimension): The clear internal space = OD − (2 × t). A 50×50 SHS at 3mm wall has an ID of 50 − 6 = 44 mm. This matters for applications where material passes through the section.
Corner Radius & Its Effect on Weight
Square MS pipes do not have perfectly sharp corners — the IS 4923 standard specifies a corner radius which is typically 1.5× to 2.5× the wall thickness. This slightly reduces the actual cross-sectional area compared to a theoretical sharp-cornered square, which is why the standard weight formula includes a small correction constant.
For most practical purposes — including all values in this square MS pipe weight chart — the corner radius effect is already incorporated into the standard IS 4923 weight tables. The theoretical formula (Section 4) aligns closely with these tabulated values.
IS 4923 allows a dimensional tolerance of ±1% on outer dimension and ±10% on wall thickness for individual pieces. Always check mill test certificates (MTC) for exact dimensions on critical structural applications.
Square MS Pipe Weight Chart in KG Per Metre — Complete IS 4923 Table
All Standard SHS Sizes • 20×20 to 200×200 mm • Wall Thickness 1.6 mm to 6 mm
The following square MS pipe weight chart covers all standard sizes as per IS 4923:1997. Weights are given in kilograms per metre (kg/m). Each row represents one SHS size; each column represents one wall thickness. The chart is colour-coded: ■ lighter weights, ■ medium weights, and ■ heavier weights to help you quickly scan the range for your size.
| Size (mm × mm) |
Wall 1.6mm (kg/m) |
Wall 2.0mm (kg/m) |
Wall 2.5mm (kg/m) |
Wall 3.0mm (kg/m) |
Wall 3.2mm (kg/m) |
Wall 4.0mm (kg/m) |
Wall 5.0mm (kg/m) |
Wall 6.0mm (kg/m) |
|---|---|---|---|---|---|---|---|---|
| → Small SHS — 20×20 to 32×32 mm | ||||||||
| 20 × 20 | 0.87 | 1.07 | 1.29 | — | — | — | — | — |
| 25 × 25 | 1.11 | 1.36 | 1.66 | 1.93 | — | — | — | — |
| 32 × 32 | 1.45 | 1.78 | 2.19 | 2.57 | 2.72 | — | — | — |
| → Mid SHS — 38×38 to 60×60 mm | ||||||||
| 38 × 38 | 1.74 | 2.14 | 2.63 | 3.10 | 3.29 | — | — | — |
| 40 × 40 | 1.83 | 2.26 | 2.78 | 3.28 | 3.48 | 4.20 | — | — |
| 50 × 50 | 2.31 | 2.86 | 3.53 | 4.18 | 4.44 | 5.45 | 6.56 | — |
| 60 × 60 | 2.79 | 3.46 | 4.28 | 5.08 | 5.40 | 6.71 | 8.15 | 9.52 |
| → Most Popular SHS — 75×75 to 100×100 mm | ||||||||
| 75 × 75 | 3.51 | 4.36 | 5.40 | 6.43 | 6.84 | 8.57 | 10.50 | 12.30 |
| 80 × 80 | 3.75 | 4.66 | 5.79 | 6.91 | 7.35 | 9.22 | 11.30 | 13.30 |
| 90 × 90 | 4.23 | 5.26 | 6.54 | 7.81 | 8.31 | 10.50 | 12.80 | 15.10 |
| 100 × 100 | 4.71 | 5.86 | 7.29 | 8.72 | 9.28 | 11.70 | 14.40 | 17.00 |
| → Large SHS — 120×120 to 200×200 mm | ||||||||
| 120 × 120 | — | 7.06 | 8.79 | 10.50 | 11.20 | 14.20 | 17.50 | 20.70 |
| 125 × 125 | — | 7.36 | 9.18 | 11.00 | 11.70 | 14.90 | 18.40 | 21.80 |
| 150 × 150 | — | — | 11.10 | 13.30 | 14.10 | 18.00 | 22.30 | 26.40 |
| 160 × 160 | — | — | 11.90 | 14.30 | 15.20 | 19.40 | 24.10 | 28.60 |
| 180 × 180 | — | — | — | 16.10 | 17.10 | 21.90 | 27.30 | 32.40 |
| 200 × 200 | — | — | — | 18.00 | 19.20 | 24.60 | 30.60 | 36.50 |
All values in this square MS pipe weight chart are nominal/theoretical weights derived from IS 4923 standard dimensions at steel density 7.85 g/cm³. Actual manufactured weights may vary up to ±10% per IS tolerance limits. For freight contracts, always verify on weigh-bridge. For project BOQ, add a 3–5% tolerance margin.
How to Calculate Square MS Pipe Weight — Formula & Worked Examples
Standard Formula • Derivation • Three Worked Examples
You can calculate the weight of any square MS pipe — even non-standard sizes not in the chart above — using a simple engineering formula. This is the same formula behind every value in the square MS pipe weight chart. Understanding it means you are never dependent on any single table for your estimates.
Simplified for Square Section:
Weight (kg/m) = 4 × 0.02466 × t × (OD − t)
Full Cross-Section Method:
Weight (kg/m) = (OD² − ID²) × 7850 ÷ 1,000,000
Example 1 — 50×50 at 2.5mm Wall
Given: OD = 50 mm, t = 2.5 mm
Weight = 4 × 0.02466 × 2.5 × (50 − 2.5)
= 4 × 0.02466 × 2.5 × 47.5
= 4 × 0.02466 × 118.75
= 4 × 2.929
= 3.53 kg/m ✓
This matches the chart value exactly. The formula is accurate to within ±0.5% for all standard square MS pipe sizes.
Example 2 — 100×100 at 4.0mm Wall
Given: OD = 100 mm, t = 4.0 mm
Weight = 4 × 0.02466 × 4.0 × (100 − 4.0)
= 4 × 0.02466 × 4.0 × 96
= 4 × 0.02466 × 384
= 4 × 9.469
= 11.70 kg/m ✓
Cross-check: (100² − 92²) × 7850 ÷ 1,000,000 = (10000 − 8464) × 0.00785 = 1536 × 0.00785 = 12.06 kg/m (slight difference due to corner radius omission in simplified formula).
Standard square MS pipes come in 6-metre lengths. To get weight per piece: multiply kg/m by 6.
Example: 75×75 at 3mm wall = 6.43 kg/m × 6 = 38.58 kg per pipe.
For a bundle of 10 pipes: 38.58 × 10 = 385.8 kg ≈ 0.386 MT.
Square MS Pipe Wall Thickness Guide — Which Thickness for Which Use?
Thickness Selection • Structural vs Light Use • Square MS Pipe Weight Implications
The wall thickness of a square MS pipe is the single most important variable in the square MS pipe weight chart — and in the structural performance of the product. The same 50×50 SHS at 1.6mm wall behaves very differently from a 50×50 at 4mm wall. Here is a practical guide to selecting the right thickness for your application.
1.6mm & 2.0mm Wall — Light Fabrication
The thinnest commercially available square MS pipe wall thicknesses. Used for lightweight frames, decorative grilles, furniture, display racks, thin partitions, exhibition structures, and hoarding frames where load is minimal. At 50×50, a 2mm wall SHS weighs just 2.86 kg/m — making it easy to handle and weld.
2.5mm & 3.0mm Wall — General Fabrication
The most common square MS pipe wall thickness in Indian fabrication shops. Suitable for gates, grilles, window frames, boundary fencing, small industrial structures, agricultural equipment frames, and light-duty shelving. A 50×50 at 2.5mm weighs 3.53 kg/m — the reference most estimators use as the default for 50×50 SHS.
4.0mm Wall — Structural Grade
The threshold at which square MS pipes enter structural-grade performance. Required for columns, heavy gate frames, warehouse racking main uprights, machine guards, and load-bearing supports. At 75×75, a 4mm wall SHS weighs 8.57 kg/m — strong enough for most light structural column applications.
5.0mm & 6.0mm Wall — Heavy Structural
Heavy-duty structural square MS pipe. Used in industrial structures, heavy machinery bases, crane support columns, equipment skids, and high-load-bearing applications where a circular hollow section (CHS) or H-beam would be over-specified. At 100×100, a 6mm wall SHS weighs 17.0 kg/m — in the same performance range as a 75mm MS angle bar.
Going from 2mm to 4mm wall on a 50×50 SHS increases weight from 2.86 to 5.45 kg/m — a 91% increase, not 100%. This is because the inner area reduces as wall thickness grows, so the steel area increases sub-linearly. The square MS pipe weight chart accounts for this correctly — which is why you should always read from the table rather than estimating by proportion.
Where Square MS Pipes Are Used — Industry Applications by Size
Construction • Fabrication • Agriculture • Infrastructure
Understanding which square MS pipe size and weight is appropriate for each application helps you specify correctly — and helps your buyer trust your recommendation. Here is how different sizes from the square MS pipe weight chart map to real-world applications across India's construction and industrial landscape.
🟩 Construction & Civil Projects
- 25×25 to 40×40 (2–2.5mm) — window grilles, railing infills, compound wall tops, small gate frames
- 50×50 (2.5–3mm) — main gate frames, boundary wall columns, staircase railings, shed purlins
- 75×75 (3–4mm) — canopy main beams, large gate frames, balcony railings, anti-climb barriers
- 100×100 (4–5mm) — entrance canopy columns, mezzanine supports, heavy pergola frames
- 150×150 to 200×200 (5–6mm) — structural columns in industrial sheds, bus shelters, heavy canopies
🟨 Industrial & Fabrication Use
- 20×20 to 32×32 (1.6–2mm) — furniture frames, display stands, exhibition booths, partitions
- 40×40 to 60×60 (2–3mm) — storage racks, trolley frames, conveyor supports, solar panel mounts
- 75×75 (3–4mm) — equipment skid bases, machine guards, mezzanine frame secondary members
- 100×100 (4–5mm) — container bases, heavy trolleys, crane gantry secondary members
- 125×125 to 200×200 (5–6mm) — primary structural columns in pre-engineered buildings, transmission tower bases
Agricultural & Rural
Greenhouse frames, shade net structures, cattle shed frames, borewell pump platforms, drip irrigation support poles. 2.5mm wall is adequate for most agri applications.
Solar & Energy
Ground-mounted solar panel purlins and rafter beams (50×50, 2.5–3mm), mounting pile caps (75×75, 3–4mm), sub-station equipment frames (100×100, 4–5mm). Hot-dip galvanised SHS preferred for outdoor.
Hoarding & Signage
Billboard post columns (100×100, 5–6mm), horizontal sign beams (75×75, 3–4mm), bus shelter uprights (60×60, 3mm). Wind load calculations govern thickness selection here.
Square MS Pipe vs Round MS Pipe — Weight, Cost & Usage Compared
SHS vs CHS • When to Choose Square Over Round
One of the most common queries from buyers comparing the square MS pipe weight chart with the round pipe (ERW) chart is: for the same nominal size, which is heavier — and which should I choose? The answer depends on the application. Here is a direct comparison.
| Parameter | Square MS Pipe (SHS) | Round MS Pipe (CHS/ERW) | Better For |
|---|---|---|---|
| Weight at same nominal size | Slightly heavier (more steel area per face) | Slightly lighter at same OD & wall | Round — weight saving |
| Welding & connection ease | Flat faces make fillet welds easier; easier to bolt | Curved surface requires cope cuts at joints | ✔ Square |
| Torsional strength | Good — closed section resists twist | Excellent — circular section maximises torsional resistance | Round — torsion |
| Bending stiffness (equal wall) | Higher in one axis (flat web effect) | Equal in all directions (isotropic) | ✔ Square (for beams) |
| Surface finishing / painting | Easier — flat faces allow brush/roller access | Harder around curves, especially in joints | ✔ Square |
| Standard governing | IS 4923:1997 | IS 1239 (Part 1) / IS 3589 | Both — different specs |
| Price per kg (general market) | 5–8% premium over round ERW at same wall | Baseline market price | Round — lower cost |
| Aesthetic / architectural use | Preferred — clean lines, modern look | Used for handrails, columns | ✔ Square |
Use a vernier caliper or digital outside micrometer to measure at the mid-face of the pipe (not at the corner, which is thicker due to forming). Measure at three cross-sections along the pipe length. The average should be within ±10% of the declared wall thickness for IS 4923 compliance. If the actual wall is thinner than declared, the real weight per metre will be less than the square ms pipe weight chart value — and you are receiving less steel than you paid for.
How the Square MS Pipe Weight Chart Determines Your Purchase Price
Per-MT to Per-Metre Conversion • Avoiding Under-Specification • Procurement Checklist
Square MS pipes are sold by the tonne (per MT) at mill and wholesale level — but most end-users buy by the piece, bundle, or metre. The square MS pipe weight chart is the conversion key between these two worlds. If you cannot do this conversion accurately, you cannot evaluate whether a supplier's per-piece price is competitive.
Converting Per-MT Rate to Per-Metre Rate
Step-by-step example using 50×50 SHS at 2.5mm wall:
Step 1: Get per-MT price from supplier.
Example: ₹72,000 per MT
Step 2: Look up weight in square ms pipe weight chart.
50×50 at 2.5mm = 3.53 kg/m
Step 3: Per-metre rate = (72,000 ÷ 1,000) × 3.53
= 72 × 3.53 = ₹254 per metre
Step 4: Per 6-metre pipe = 254 × 6 = ₹1,524 per pipe
Now you can compare any supplier's per-piece quote directly against this benchmark.
The Under-Specification Trap
The most common procurement error with square MS pipes: specifying "50×50 SHS" without stating the wall thickness. A supplier quoting 2mm wall (2.86 kg/m) and one quoting 2.5mm wall (3.53 kg/m) at the same per-piece price are not giving you the same product — you're getting 19% less steel in the thinner pipe.
Always specify: "50×50 SHS, wall thickness 2.5mm, IS 4923, ERW, IS mark mandatory". This single line on your purchase order eliminates the substitution risk entirely.
Size: 75×75 mm SHS
Wall Thickness: 3.0mm (IS 4923 heavy series)
Length: 6 metres per piece
Standard: IS 4923:1997
Mark: IS mark mandatory on pipe body
MTC: Mill Test Certificate required with delivery
• Bureau of Indian Standards (BIS) — IS 4923:1997 — Hot Formed Square and Rectangular Hollow Sections for Structural Use
• Ministry of Steel, Government of India — Steel consumption data, industry standards, and policy updates
• Steel World India — Market pricing benchmarks and steel industry news
Square MS Pipe Weight Chart — Most Asked Questions
FAQ • For Fabricators, Contractors & Steel Traders
Vishwageeta Ispat — Raipur, Chhattisgarh
Vishwageeta Ispat is Raipur's trusted iron and steel stockist — supplying TMT bars, MS angles, ISMC channels, I-beams, round MS pipes (IS 1239), square MS pipes (IS 4923), rectangular hollow sections, GI pipes, MS sheets, chequered plates, and all structural steel products. This square MS pipe weight chart is published as a free technical reference for contractors, fabricators, project engineers, and procurement teams across Chhattisgarh and Central India.
Need current rates on square MS pipes? Looking to book a truckload for your project? Our team gives you mill-linked, competitive pricing on IS 4923 SHS pipes in all sizes. Call, WhatsApp, or fill the enquiry form — we respond same working day.