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ISMB 400 Weight

Updated 8 November 2026Checked against IS 808:2021, IS 2062:2011How we check

ISMB 400 weighs 61.6 kg per meter as listed in IS 808. A 6 m length weighs about 369.6 kg and a 12 m length about 739.2 kg.

ISMB 400 Weight Calculator

All results are in kg.

HBtwtf
Measure depth (H), flange width (B), web (tw) and flange (tf) thickness.
–Weight of 1 piece
–Total weight
–Weight per meter
–Weight per foot
–Total in tonnes
–Total in pounds
–Paint / galvanizing area
–Estimated cost
Download ISMB Beam Weight Chart (PDF)Free, printable, A4

ISMB 400 Dimensions

PropertyValue
Depth (h)400 mm
Flange width (b)140 mm
Web thickness (tw)8.9 mm
Flange thickness (tf)16.0 mm
Weight61.6 kg/m

ISMB 400 Weight by Length

LengthWeight
1 meter61.6 kg
1 foot18.8 kg
6 m369.6 kg
20 ft (6.10 m)375.5 kg
12 m739.2 kg

ISMB 400 Weight by Quantity

Pieces6 m pieces12 m pieces
1369.6 kg739.2 kg
51,848.0 kg3,696.0 kg
103,696.0 kg7,392.0 kg
207,392.0 kg14,784.0 kg

One tonne of ISMB 400 is about 2.7 pieces of 6 m.

How to Calculate

Weight (kg/m) = [2 × B × tf + (H − 2 × tf) × tw] × 0.00785 = 60.88 kg/m

Dimensions as per SP 6(1). The formula ignores the root radius and flange taper, so it gives 60.88 kg/m instead of the listed 61.6 kg/m. Use the mill weight for billing.

Frequently Asked Questions

What is the weight of ISMB 400 per meter?

ISMB 400 weighs 61.6 kg per meter as listed in IS 808.

What is the weight of a 6 m ISMB 400?

A 6 m length of ISMB 400 weighs about 369.6 kg.

What is the weight of a 12 m ISMB 400?

A 12 m length weighs about 739.2 kg.

What is the size of ISMB 400?

ISMB 400 is 400 mm deep with a 140 mm wide flange, a 8.9 mm web and 16.0 mm thick flanges.

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