ISMC Size Chart: MS Channel Weight per Meter, Sizes & Uses

TL;DR: MS channels come in standard ISMC sizes under IS 808, each with a fixed weight per meter that determines load capacity and material cost. ISMC 100 weighs 9.56 kg/m; ISMC 150 weighs 16.80 kg/m; ISMC 200 weighs 22.30 kg/m. This guide covers the full size chart, procurement checklist, and how to source verified MS channels on OFB.

MS channel weight by ISMC size — the most-referenced figure in structural steel procurement — is fixed by IS 808, India’s standard for hot-rolled steel sections. ISMC 100 weighs 9.56 kg/m. ISMC 150 weighs 16.80 kg/m. ISMC 200 weighs 22.30 kg/m. These figures are the starting point for estimating material quantity, structural adequacy, and landed cost on any fabrication or construction project.

MS channels and MS angles are core structural sections used in sheds, platforms, racking, and fabrication across the Indian industry. Contractors and fabricators rely on ISMC weight data to estimate material cost before placing an order. This guide covers MS channel weight by ISMC size, compares channels against angles, and shows procurement managers how to select and source the right section on OFB.

What Is MS Channel Weight?

MS channel weight is the mass of a mild steel, C-shaped section per meter of length, expressed in kilograms per meter (kg/m). Each ISMC size has a fixed weight per meter defined under IS 808 — the Indian Standard for hot-rolled steel channel, angle, and beam sections. Weight per meter is the primary reference figure buyers use to calculate total order quantity and estimate landed cost.

Indian Standard Medium Channel (ISMC) is the common designation for hot-rolled MS channels used in general fabrication and construction. The steel itself is typically rolled to IS 2062 grade E250, a structural steel grade defined by yield strength and tensile properties. A heavier channel generally carries more load, but weight alone does not determine suitability. Span length, support spacing, and load type all affect real-world performance.

Fabricators working on sheds and mezzanine platforms often specify ISMC 100 or ISMC 150 because these sizes balance strength against cost. Auto ancillary units use lighter ISMC 75 sections for equipment frames and non-structural supports. Matching the section to the actual load, rather than defaulting to a heavier size, is the difference between an efficient design and an overspecified one.

Read More About: MS Angle vs Channel

Types of MS Channel Sizes and Their Industrial Uses

ISMC sizes are standardised under IS 808. Each size has a fixed weight per meter, flange width, web thickness, and flange thickness. The full dimensional table is the reference procurement managers and structural engineers use to specify sections correctly.

The table below lists all commonly stocked ISMC sizes with their IS 808 weight per meter, key dimensions, and typical industrial application.

ISMC Size	Weight per Meter (kg/m)	Web Depth (mm)	Flange Width (mm)	Web Thickness (mm)	IS Reference	Typical Application
ISMC 75	7.14	75	40	4.4	IS 808	Light frames, equipment supports, brackets
ISMC 100	9.56	100	50	4.7	IS 808	General fabrication, small platforms
ISMC 125	13.10	125	65	5.0	IS 808	Medium-duty racking, equipment bases
ISMC 150	16.80	150	75	5.4	IS 808	Industrial platforms, structural supports
ISMC 175	19.60	175	75	5.5	IS 808	Intermediate structural framing
ISMC 200	22.30	200	75	6.1	IS 808	Sheds, long-span framing
ISMC 225	26.10	225	80	6.4	IS 808	Heavy industrial platforms
ISMC 250	30.40	250	80	7.1	IS 808	Crane girders, heavy structural beams
ISMC 300	36.30	300	90	7.8	IS 808	Heavy load-bearing structures
ISMC 400	50.10	400	100	8.8	IS 808	Bridge components, heavy infrastructure

MS angles follow a separate size and weight table under the same IS 808 standard. An angle section such as 50x50x6 mm weighs roughly 4.5 kg/m, considerably lighter than any ISMC channel of comparable footprint. Angles are used for bracing and light framing, not for carrying primary structural loads.

MS Channel vs MS Angle: Which Should You Choose?

An MS channel suits load-bearing applications such as beams, platform supports, and long spans, because its C-shaped profile resists bending better. An MS angle suits bracing, cross-supports, and light frames where load is distributed rather than concentrated. Choosing between them depends on whether the member carries primary load or provides secondary support.

Parameter	MS Channel	MS Angle
Section shape	C-shaped	L-shaped
Primary use	Load-bearing beams and supports	Bracing and light framing
Load capacity (same size class)	Higher	Lower
Weight per meter	Higher	Lower
Typical application	Platforms, sheds, structural frames	Frames, brackets, cross-bracing

How to Buy MS Channel: A Procurement Checklist

Buying the right MS channel starts with defining load and span, then moves through supplier verification and order placement. Follow this sequence to avoid overspecification and reduce procurement risk.

1. Define the specification: Confirm the required ISMC size, IS 808 dimensional tolerance, and IS 2062 grade before contacting suppliers.
2. Calculate load and span: Match the section to actual structural load rather than defaulting to a heavier size for safety margin alone.
3. Evaluate suppliers: Check BIS certification, Mill Test Certificates (MTC), and NABL-accredited test reports for the batch offered.
4. Verify quality on receipt: Cross-check the MTC against the ordered grade and confirm dimensional accuracy against IS 808 tolerances.
5. Negotiate pricing: Request ex-factory and delivered quotes separately, and compare against prevailing spot rates for the size ordered.
6. Place and track the order: Confirm quantity in tonnes, delivery location, and expected lead time before final order placement.

What Determines MS Channel Prices in India?

MS channel prices are driven primarily by input costs for iron ore and coking coal, since these set the base cost of hot-rolled steel. Rolling and processing margins, section size, order volume, and regional freight then add to the base price. Construction-season demand, typically stronger outside the monsoon months, also affects short-term price movement.

Larger ISMC sizes such as ISMC 200 and ISMC 300 carry a per-tonne premium over smaller sizes due to rolling mill output constraints. Bulk orders generally secure better per-tonne pricing than small, fragmented purchases. Regional variation is common, with mill-adjacent markets such as Raipur and Durgapur typically pricing lower than destination markets further from production hubs.

How to Procure MS Channel Through OFB?

OFB connects industrial buyers with verified suppliers across its steel category, covering ISMC channels, MS angles, and structural sections under IS 2062. Every listed supplier undergoes a quality and compliance verification step before onboarding onto the platform. Buyers can request Mill Test Certificates and BIS documentation at the point of order.

Large channel and angle orders can be procured on OFB’s integrated procurement credit facility through Oxyzo, enabling buyers to preserve working capital while securing material supply. OFB-supported logistics coordinates delivery from mill or warehouse to site, with timelines confirmed at order placement based on location and volume.

Conclusion

MS channel weight is the starting point for section selection, but the right choice depends on load, span, and application, not weight alone. Buyers who match specifications to actual requirements avoid both structural risk and unnecessary material cost. Explore OFB’s steel category to compare ISMC sizes, verify supplier certification, and access procurement credit through Oxyzo.