How do I calculate the total weight of 40x40x5 angle steel?

Use the formula: Total weight (kg) = 3.00 kg/m × length per piece (m) × number of pieces. For example, 20 pieces at 6 metres each: 3.00 × 6 × 20 = 360 kg = 0.36 MT. To get total tonnes, divide by 1000. To get material cost, multiply total kg by your confirmed ₹/kg rate. The 3.00 kg/m value is from IS 808 and applies to IS 2062 grade MS angle.

What is the weight of 40x40x5 angle per foot?

The weight of 40x40x5 MS angle per foot is approximately 0.915 kg/ft (3.002 kg/m ÷ 3.2808 = 0.915 kg/ft). This is useful when working with imperial lengths or when the local market quotes in feet.

What is the difference between 40x40x3, 40x40x5, and 40x40x6 angle?

All three are 40mm × 40mm equal angles but with different leg thicknesses. 40x40x3 weighs 1.80 kg/m — the lightest option, suitable for light framing and secondary members. 40x40x5 weighs 3.00 kg/m — the most commonly stocked version, used for general fabrication, gates, grilles, and light structural work. 40x40x6 weighs 3.50 kg/m — heavier, for higher-load applications and thicker weld joints. The cross-sectional area and load-carrying capacity increase with thickness.

What are the common uses of 40x40x5 MS angle?

40x40x5 MS angle is one of the most widely used structural steel sections in India. Common uses include: fabrication of gates, grilles, and security frames; base frames for machinery, equipment, and tanks; secondary structural members in roof trusses; shelving and rack frames in warehouses; lintel supports over door and window openings; staircase stringers and handrail posts; solar panel mounting frames; furniture and workshop fixtures.

How many pieces of 40x40x5 angle are there in one tonne (6m length)?

At 6m standard length, one 40x40x5 angle piece weighs 3.00 × 6 = 18.01 kg. Therefore, 1000 ÷ 18.01 ≈ 55 pieces per tonne. At 12m length, each piece weighs 36.02 kg, giving approximately 27 pieces per tonne. Always confirm with your supplier's actual weigh-bridge weight, as IS 808 rolling tolerances of ±2.5% can vary the delivered count slightly.

40x40x5 Angle Weight Per Meter: 3.00 kg/m | Complete MS Angle Weight Chart | Vishwageeta Ispat

MS Angle Weight Chart · IS 808 · IS 2062 · Raipur 2026

40×40×5 Angle
Weight Per Meter

Q: What is the weight per meter of 40x40x5 MS angle?

The weight of 40x40x5 MS angle per meter is 3.00 kg/m (3.002 kg/m nominal) as per IS 808. This means a 6-metre piece weighs approximately 18.01 kg, a 9-metre piece weighs 27.02 kg, and you get approximately 55 pieces per tonne at 6m standard length. The designation 40x40x5 means both legs are 40mm wide and the thickness is 5mm.

The most searched MS angle size in India — full weight data, complete equal angle chart from 20×20 to 200×200, a live weight calculator, and practical procurement guidance.

40×40×5 Angle Weight Per Meter (IS 808)

3.00 kg/m

3.002 kg/m nominal · 0.915 kg/ft · 6m piece = 18.01 kg · ~55 pcs/tonne @ 6m · Grade: IS 2062 E250 · Standard: IS 808

⚖ 3.00 kg/m confirmed 📐 IS 808 · IS 2062 📊 Full 33-row chart 📍 Raipur, CG

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3.00

kg/m — weight per metre of 40×40×5 angle (IS 808)

0.915

kg/ft — weight per foot (3.002 ÷ 3.2808)

18.01

kg per 6m piece (3.002 × 6)

~55

pieces per tonne at 6m standard length

Section 01 · The Direct Answer

40×40×5 Angle Weight Per Meter — Everything You Need

IS 808 Confirmed · kg/m · kg/ft · Per Piece · Pieces Per Tonne

Weight Per Metre

3.00 kg/m

3.002 kg/m nominal from IS 808
±2.5% rolling tolerance

Weight Per Foot

0.915 kg/ft

= 3.002 ÷ 3.2808
Used in local market quotations

Section

40 × 40 × 5

Both legs 40mm · Thickness 5mm
IS 2062 E250 · IS 808 standard

6m Piece Weight

18.01 kg

3.002 × 6 = 18.012 kg
Standard stock length

Pieces Per Tonne

~55 pcs

At 6m length (1000 ÷ 18.01)
~27 pcs at 12m length

Cross-Sectional Area

3.79 cm²

Weight ÷ (density × length)
= 3.002 ÷ 7.85 × 100 = 3.83 cm²

40×40×5 Equal Angle — Cross-Section

Leg A: 40 mm (horizontal)
Leg B: 40 mm (vertical) — equal angle
Thickness (t): 5 mm
Standard: IS 808-1989 (reaffirmed)
Grade: IS 2062 E250 structural steel
Root radius: approx. 7 mm

💡 Quick Calculation

Total weight formula: Total kg = 3.00 × length (m) × pieces. Example: 50 pieces × 6m = 3.00 × 6 × 50 = 900 kg = 0.90 MT. At ₹55/kg = ₹49,500 material cost (before GST 18%, loading, and freight). Always use actual weigh-bridge weight for billing — IS 808 permits ±2.5% rolling tolerance on nominal values.

40×40×3 vs 40×40×5 vs 40×40×6 — Which One to Use

Same Leg Size · Different Thickness · Different Weight & Capacity

All three are equal angles with 40mm legs. The only difference is leg thickness — but that changes the weight per metre, the cross-sectional area, the load capacity, and the cost per metre. Here is how they compare:

Section	Thickness	Weight (kg/m)	Weight (kg/ft)	6m Piece (kg)	Pcs/Tonne @ 6m	Best Use
40×40×3	3 mm	1.80	0.548	10.79	~93	Light framing, secondary support, shelving, gates
40×40×5 ★	5 mm	3.00	0.915	18.01	~55	Most stocked · General fabrication · Roof trusses · Gates · Machinery frames
40×40×6	6 mm	3.50	1.066	20.99	~48	Higher loads, thicker weld joints, heavy frames
★ 40×40×5 is highlighted — the most commonly stocked and specified size. Weight values from IS 808. Rolling tolerance ±2.5%.

When to Choose 40×40×5

40×40×5 is the default choice when 40mm leg size is required. It provides good weld thickness (5mm allows a solid fillet weld), adequate cross-section for most light structural and fabrication uses, and is the most widely available and competitively priced option in the 40mm range. If your design simply says "40×40 angle" without specifying thickness, 40×40×5 is the standard interpretation in most Indian fabrication shops.

When to Go Lighter or Heavier

Use 40×40×3 when weight saving is critical and loads are light — for example, secondary purlin supports, decorative grilles, or internal furniture frames where structural demand is minimal. Use 40×40×6 when the connection design requires a thicker leg for better weld size, when the angle is subject to higher axial or bending loads, or when the specification explicitly calls for 6mm thickness. Never downgrade thickness without confirming adequacy with the design engineer.

Section 03 · Calculator

MS Angle Weight & Cost Calculator

Select Section · Enter Length, Qty, Rate → Get Total kg, MT, Cost

MS Equal Angle — Weight & Cost Estimator

Angle Section

Length per Piece (m)

Number of Pieces

Rate (₹/kg)

kg/m (auto)

Total Weight

—

kg total

Total Tonnes

—

MT (freight & billing)

Material Cost

—

indicative at ₹/kg rate

Formula: kg/m × length (m) × pieces = total kg. ÷ 1,000 = MT. × ₹/kg = indicative cost. Does not include GST (18%), loading, insurance, or freight. Use actual weigh-bridge weight for final billing.

Section 04 · Complete Weight Chart

Complete MS Equal Angle Weight Chart — IS 808 (All Sizes)

20×20×3 to 200×200×20 · kg/m · kg/ft · 6m Piece · Pieces Per Tonne

All values from IS 808. The 40×40×5 row is highlighted in orange. kg/ft = kg/m ÷ 3.2808. Six-metre piece weight = kg/m × 6. Pieces per tonne at 6m (= 1,000 ÷ 6m piece, rounded down).

Section (mm)	Weight kg/m	Weight kg/ft	6m Piece (kg)	Pcs / Tonne @ 6m
20×20×3	0.90	0.274	5.39	185
25×25×3	1.10	0.335	6.59	151
25×25×5	1.80	0.548	10.79	92
31×31×3	1.28	0.390	7.68	130
35×35×5	2.60	0.792	15.59	64
37×37×3	1.70	0.518	10.20	98
40×40×3	1.80	0.548	10.79	92
40×40×5 ★	3.00	0.915	18.01	55
40×40×6	3.50	1.066	20.99	47
50×50×5	3.80	1.158	22.79	43
50×50×6	4.50	1.372	27.01	37
60×60×6	5.40	1.645	32.38	30
65×65×6	5.80	1.767	34.79	28
65×65×8	7.70	2.346	46.18	21
65×65×10	9.40	2.864	56.38	17
75×75×6	6.80	2.072	40.80	24
75×75×8	8.90	2.712	53.39	18
75×75×10	11.00	3.352	65.99	15
80×80×6	7.30	2.224	43.79	22
80×80×8	9.60	2.925	57.59	17
90×90×6	8.20	2.499	49.19	20
90×90×8	10.80	3.292	64.80	15
90×90×10	13.40	4.084	80.40	12
100×100×6	9.20	2.804	55.20	18
100×100×8	12.10	3.687	72.60	13
100×100×10	14.91	4.545	89.46	11
100×100×12	17.70	5.395	106.20	9
110×110×12	19.70	6.004	118.20	8
130×130×10	19.70	6.004	118.20	8
150×150×10	22.80	6.950	136.80	7
150×150×12	27.20	8.290	163.20	6
150×150×16	35.80	10.911	214.80	4
200×200×16	48.50	14.78	291.00	3
200×200×20	60.00	18.29	360.00	2
All values nominal from IS 808. ★ = 40×40×5 (the keyphrase section). Weight tolerance ±2.5% per IS 1852. kg/ft = kg/m ÷ 3.2808. 6m piece = kg/m × 6. For billing, use actual weigh-bridge weight. Grade: IS 2062 E250.

Section 05 · The Calculation

How the Weight of 40×40×5 Angle Is Calculated

Formula · Cross-Section · Steel Density · IS 808 Derivation

The Weight Formula

Weight per metre = cross-sectional area (m²) × steel density (7,850 kg/m³).

For a 40×40×5 equal angle, the cross-sectional area is calculated from the L-shaped profile. Simplified for equal angles: Area ≈ t × (2A − t) where t = thickness (5mm) and A = leg size (40mm).

Area = 5 × (2 × 40 − 5) = 5 × 75 = 375 mm² = 0.000375 m²
Weight = 0.000375 × 7,850 = 2.94 kg/m (simplified)

The IS 808 published value of 3.002 kg/m accounts for the root and toe radii of the rolled section, which add a small amount of steel at the inner corner. This is why the actual rolled section is slightly heavier than the simplified right-angle calculation.

Why the IS 808 Value Is What You Should Use

IS 808 is the Indian Standard for hot-rolled steel sections. It specifies dimensions, cross-sectional properties, and nominal weights for all equal and unequal angles. The 3.002 kg/m value includes the root radius correction and is the value used by every Indian rolling mill, mill test certificate, and structural engineer.

When you order 40×40×5 MS angle from any IS 808-compliant supplier, the material is rolled to these dimensions and the invoice weight is calculated from the weigh-bridge reading (which reflects the actual as-rolled section, typically within ±2.5% of the nominal 3.002 kg/m).

For budget planning, use 3.00 kg/m. For precise billing, use actual weigh-bridge weight and allow a 3–5% contingency in cost estimates.

Section 06 · Applications

Common Uses of 40×40×5 MS Angle

One of India's Most Widely Fabricated Structural Steel Sections

The 40×40×5 angle is one of the most versatile and widely stocked structural sections in India. Its combination of manageable weight (3 kg/m), adequate leg size for most light-to-medium fabrication, and 5mm thickness suitable for both fillet welds and bolt connections makes it the default choice across dozens of construction and industrial applications.

🚪

Gates & Grilles

The most common use — compound gates, security grilles, window guards, and boundary frames. 5mm thickness holds a proper weld bead.

🏗

Roof Trusses

Secondary purlins, web members of light trusses, and bracings in industrial shed roof systems where moderate loads apply.

⚙️

Machinery Frames

Base frames and support structures for pumps, motors, generators, tanks, and light equipment in factories and plants.

📦

Racks & Shelving

Warehouse racking uprights and beams, retail display frames, and storage platforms where point loads are moderate.

☀️

Solar Panel Frames

Widely used for residential and commercial solar mounting structures — enough cross-section for wind loads, light enough to minimise roof weight.

🔧

General Fabrication

Staircase stringers, handrail posts, lintel supports, furniture frames, brackets, and almost any general-purpose welded steel fabrication.

Section 07 · Buying Guide

Buying 40×40×5 Angle — What to Confirm Before Placing an Order

Grade · Standard · Length · Weight · Delivered Cost

Specification to Confirm

Section: 40×40×5 ISA (Indian Standard Angle) per IS 808.
Grade: IS 2062 E250 (Fe 410W) for standard structural use. E350 for higher-stress applications.
Length: Standard stock lengths in India are 6m and 12m. Fixed cut-to-length incurs a small cutting surcharge.
Surface: Black (as-rolled) for painted/primed applications. Galvanized on request for outdoor/coastal use.
Mill Test Certificate (MTC): Request for any structural application — confirms material grade and dimensions.

Price Comparison Checklist

MS angle is priced per kg or per tonne. To compare quotes correctly:

Confirm ₹/kg rate and whether GST (18%) is included or separate
Confirm loading charges (typically ₹200–300/MT)
Confirm freight to your delivery location
Confirm quote validity (rates change daily in volatile periods)
For 40×40×5 at 3.00 kg/m × 6m = 18 kg/piece — multiply by pieces for total MT
Compare total delivered cost per MT, not just ex-works headline rate

Section 08 · FAQ

Frequently Asked Questions

The Most Common Questions About 40×40×5 Angle Weight & MS Angle Weight Chart

What is the weight per meter of 40×40×5 MS angle?

The weight per meter of 40×40×5 MS angle is 3.00 kg/m (3.002 kg/m nominal) as per IS 808. This is the standard value used by all Indian mills and structural engineers. A 6-metre piece weighs 18.01 kg, a 9-metre piece weighs 27.02 kg, and you get approximately 55 pieces per tonne at 6m standard length. The designation 40×40×5 means both legs are 40mm and the wall thickness is 5mm.

How do I calculate total weight for an order of 40×40×5 angle?

Use: Total kg = 3.00 × length per piece (m) × number of pieces. Example: 80 pieces at 6m = 3.00 × 6 × 80 = 1,440 kg = 1.44 MT. At ₹55/kg: material cost = ₹79,200 (before GST 18%, loading, and freight). Divide by 1,000 for MT; multiply MT by freight rate for total delivered cost. Allow 3–5% contingency for IS 808 rolling tolerance of ±2.5%.

What is 40×40×5 angle weight per foot?

The weight of 40×40×5 MS angle per foot is 0.915 kg/ft (3.002 ÷ 3.2808 = 0.9149 kg/ft, commonly rounded to 0.915). This is published as 0.915 kg/ft in several Indian steel weight references. Useful for working with imperial lengths or when local market quotes in feet.

How many 40×40×5 angle pieces are in one tonne?

At 6m standard length: each piece = 3.002 × 6 = 18.01 kg. Therefore 1,000 ÷ 18.01 ≈ 55 pieces per tonne. At 12m length: each piece = 36.02 kg, giving ≈ 27 pieces per tonne. These are nominal figures — actual count may vary by ±1–2 pieces depending on weigh-bridge weight. For accurate logistics planning, use actual weigh-bridge weight from the dispatch note.

What are the common uses of 40×40×5 MS angle?

40×40×5 is one of the most widely used structural steel sections in India. Key applications include: fabricated gates and security grilles, light roof trusses and purlin supports, machinery and equipment base frames, warehouse racking structures, solar panel mounting frames, staircase stringers, window lintel supports, and general-purpose welded fabrication. Its 5mm thickness supports proper fillet welds and standard M12–M16 bolt connections.

What is the difference between 40×40×5 and 40×40×6 angle?

Both have 40mm legs but different thickness. 40×40×5 weighs 3.00 kg/m and is used for standard fabrication and light structural work. 40×40×6 weighs 3.50 kg/m (17% heavier) and is used when a thicker weld size is needed, higher loads are expected, or the specification calls for 6mm thickness. The 6mm version costs approximately 17% more per piece at the same ₹/kg rate. Never substitute one for the other without confirming the design requirement.

Published by

Vishwageeta Ispat — Raipur, Chhattisgarh

Vishwageeta Ispat is Raipur's trusted iron and steel supplier — stocking MS angles (IS 808, all sizes from 20×20 to 150×150), TMT bars (IS 1786), ISMB I-beams, MS H-beams, ISMC channels, MS pipes (IS 1239), square hollow sections (IS 4923), and all structural steel products. We provide IS 808-consistent weight data, mill test certificates on request, and competitive delivered rates across Chhattisgarh and Central India.

Need 40×40×5 angle or any MS angle section today? Share quantity, required length, and delivery location — we'll confirm the ₹/kg rate and dispatch timeline same working day.

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