Can actual MS Flat weight differ from the chart value?

Yes — chart values are theoretical, calculated from nominal dimensions. Actual weight can vary due to manufacturing tolerance on width and thickness (typically ±2–3% per IS standards), mill coating differences if any, and slight surface texture variations. For most procurement and planning purposes, theoretical chart weights are accurate enough. For billing-critical or high-accuracy applications, request the Mill Test Certificate (MTC) which confirms actual section properties, and weigh a sample if needed for verification.

What are the most common sizes of MS Flat bars in India?

Commonly stocked MS Flat sizes in India range from 20×3 mm (light fabrication and brackets) through 25×5, 40×6, 50×6, 50×8, 75×6, 75×8, and 100×10 mm (general to heavy structural fabrication). Widths of 25, 40, 50, 75, and 100 mm are the most frequently used. Thicknesses of 5, 6, 8, and 10 mm cover the majority of construction and fabrication applications. Standard lengths are 6 meters and 12 meters, though suppliers may offer custom cutting.

What should I confirm with a steel supplier before ordering MS Flat?

Before ordering, confirm: (1) Exact size — both width and thickness in mm; (2) Steel grade — IS 2062 E250 typically for standard fabrication; (3) Available standard lengths — 6m, 12m, or custom cut; (4) kg/m from supplier's current chart for the confirmed size; (5) Total weight for your quantity — kg/m × length × piece count; (6) Price per kg and total material cost estimate; (7) Whether cutting charges, freight, or taxes apply. Confirming all six prevents billing surprises and ensures fabrication planning is accurate.

MS Flat Weight Chart (kg/m) + Calculator | Iron Patti / Loha Patti | Vishwageeta Ispat

Steel Weight Charts • MS Flat Reference • Iron Patti / Loha Patti

MS Flat Weight Chart (kg/m) + Live Calculator

Q: What is MS Flat (Iron Patti / Loha Patti)?

MS Flat — commonly called Iron Patti or Loha Patti in the Indian market — is a rectangular mild steel flat bar with uniform width and thickness. It is used across construction and manufacturing for frames, base plates, brackets, grill work, racks, supports, and general fabrication. The rectangular geometry provides straight edges and uniform thickness that make cutting, drilling, and welding straightforward. It is available in widths from 20 mm to over 150 mm and thicknesses from 3 mm to 25 mm or more, in 6m and 12m standard lengths.

Q: How do you calculate MS Flat weight per meter (kg/m)?

Use the formula: Weight (kg/m) = Width (mm) × Thickness (mm) × 0.00785. Example: A 50×6 mm MS Flat: kg/m = 50 × 6 × 0.00785 = 2.355 kg/m. For total length: Total weight (kg) = kg/m × Length (m). For a 12m piece: 2.355 × 12 = 28.26 kg. The constant 0.00785 is derived from steel density (7850 kg/m³) converted to the appropriate unit combination.

Q: Why does the MS Flat weight chart matter for billing?

Steel is sold and billed by weight — either per kilogram or per metric ton. The weight chart allows buyers to estimate total weight before ordering: kg/m × total length in meters = total kg. This prevents three common problems: (1) Budget overruns when actual billed weight is more than expected; (2) Under-ordering because the piece count was used instead of total kg; (3) Transport overload when vehicle capacity is estimated without knowing actual total weight. With the chart, cost estimation and transport planning happen correctly before dispatch.

In steel buying, the shape is simple — the weight decides the bill. Whether you call it MS Flat, Iron Patti, or Loha Patti, this chart and calculator help you estimate costs, plan transport load, and avoid invoice surprises at site.

📐 kg/m Formula ⚡ Live Calculator 📊 30-Size Chart 📍 Raipur, Chhattisgarh

Need MS Flats with Clear Specs?

Share size (W×T), length, and quantity — we respond with a clean quote and weight estimate.

📋 Request Quote24-Hour Response 💬 Join WhatsApp ChannelDaily Rate Updates 📞 Call: 9200049000Direct Sales Line

MS Flat bars stacked in bundles used for fabrication and construction

Fig 1 — MS Flat bars (Iron Patti / Loha Patti) — used across frames, base plates, brackets, racks, and general fabrication.

MS Flat, Iron Patti, Loha Patti — different names, same product: a rectangular mild steel flat bar with straight edges and uniform thickness. Sizes vary widely (20×3 mm to 100×20 mm and beyond), so a size-wise weight chart is the fastest way to plan budget, quantity, and handling. This page gives you the formula, a live calculator, and a ready chart for 30 common market sizes.

📋 Contents of This Guide

What is MS Flat (Iron Patti / Loha Patti)? — Product, uses, why weight matters
Weight formula — simple and reliable — Width × Thickness × 0.00785
Live Calculator — instant kg/m and total
Weight chart — 30 common market sizes
Where MS Flats are used
Common buyer mistakes with weight
FAQ — MS Flat weight questions

Section 01 • Foundation

What is MS Flat (Iron Patti / Loha Patti)?

Rectangular Flat Bar • Uniform Cross-Section • Fabrication Staple

An MS Flat bar is a mild steel product with a simple, consistent rectangular cross-section — defined by its width (W) and thickness (T) in millimeters. The straight edges, uniform thickness, and easy machinability make it the most versatile flat steel product for fabrication.

W × T

Two dimensions define weight — width and thickness in mm, multiplied by 0.00785

kg/ton

How steel is billed — weight determines the invoice, not piece count

6m / 12m

Standard stock lengths in India — custom cutting available from most suppliers

IS 2062

Standard grade — E250 for most fabrication; E350 for heavier structural applications

📌 Before Ordering — Read This First

Always order by size (Width × Thickness) and length — not by description or visual. Billing follows total kg, so weight per meter drives every cost calculation. Fabricators use charts to estimate frames, gates, racks, and supports. Transport planning becomes accurate only when total kg is known in advance.

Section 02 • Formula

Weight Formula — Simple and Reliable

Standard Derivation • Steel Density • How to Apply It

The MS Flat weight formula uses only two inputs — width and thickness in millimeters — and a single density constant. It is the same formula used by suppliers, fabricators, and engineers across India daily.

📐 MS Flat Weight Per Meter — Standard Formula

Weight (kg/m) = Width (mm) × Thickness (mm) × 0.00785

Total Weight (kg) = kg/m × Length (m)

0.00785 = Steel density conversion (7850 kg/m³ × 10⁻⁶ for mm² area)

Example 1: 50 × 6 mm flat → 50 × 6 × 0.00785 = 2.355 kg/m

Example 2: 75 × 10 mm flat → 75 × 10 × 0.00785 = 5.887 kg/m

Total Example: 50 × 6 mm, 20 pieces at 6m each → 2.355 × 6 × 20 = 282.6 kg total

Note: Chart values are theoretical. Actual weight may vary ±2–3% due to rolling tolerance

Section 03 • Tool

Live Calculator — Instant kg/m and Total Weight

Select Width & Thickness • Enter Length • Instant Result

🔧 MS Flat Weight Calculator

Width (mm)

Thickness (mm)

Length (m)

Weight per Meter

—

kg/m

Total Weight

—

kg for entered length

Formula Used

W × T × 0.00785

💡 Practical Note

If an MS Flat is lighter than your requirement allows, stiffness in fabricated parts may be insufficient. If it's heavier, it increases billing and transport cost unnecessarily. Getting the right size is more important than staying with a "standard" selection. Use the calculator to compare sizes before ordering.

Section 04 • Reference

MS Flat Weight Chart — Common Market Sizes

30 Common Sizes • kg/m, 6m and 12m Weights • Application Notes

All values are calculated using the standard formula (W × T × 0.00785). Use as an estimation and planning tool for cost, transport load, and fabrication quantity. For billing-critical applications, verify on receipt against MTC.

Size (mm)	Width	Thickness	Weight (kg/m)	Weight (kg/6m)	Weight (kg/12m)	Application Notes
20 × 3	20	3	0.471	2.826	5.652	Light fabrication, small brackets
20 × 5	20	5	0.785	4.710	9.420	General workshop use
25 × 3	25	3	0.589	3.532	7.065	Frames, light supports
25 × 5	25	5	0.981	5.887	11.775	Common for grills, racks
25 × 6	25	6	1.177	7.065	14.130	Heavier bracket work
32 × 5	32	5	1.256	7.536	15.072	Fabrication members
32 × 6	32	6	1.507	9.043	18.086	Supports, stiffeners
40 × 5	40	5	1.570	9.420	18.840	Frames, base parts
40 × 6	40	6	1.884	11.304	22.608	General structural fabrication
40 × 8	40	8	2.512	15.072	30.144	Heavier frames & plates
50 × 5	50	5	1.962	11.775	23.550	Common industrial use
50 × 6	50	6	2.355	14.130	28.260	Supports, gussets
50 × 8	50	8	3.140	18.840	37.680	Base plates, heavy racks
50 × 10	50	10	3.925	23.550	47.100	High load fabrication parts
60 × 6	60	6	2.826	16.956	33.912	Frames & stiffeners
60 × 8	60	8	3.768	22.608	45.216	Heavier supports
65 × 6	65	6	3.061	18.369	36.738	Industrial brackets
65 × 8	65	8	4.082	24.492	48.984	Heavier fabrication
75 × 6	75	6	3.532	21.195	42.390	Common site supports
75 × 8	75	8	4.710	28.260	56.520	Load-carrying members
75 × 10	75	10	5.887	35.325	70.650	Heavy gates / frames
80 × 8	80	8	5.024	30.144	60.288	Industrial fabrication
80 × 10	80	10	6.280	37.680	75.360	Heavier supports
90 × 10	90	10	7.065	42.390	84.780	High load applications
100 × 6	100	6	4.710	28.260	56.520	Frames & plates
100 × 8	100	8	6.280	37.680	75.360	Heavy frames
100 × 10	100	10	7.850	47.100	94.200	Base plates / supports
100 × 12	100	12	9.420	56.520	113.040	Very heavy fabrication
100 × 16	100	16	12.560	75.360	150.720	High load structural parts
100 × 20	100	20	15.700	94.200	188.400	Industrial heavy duty

📌 How to Use This Chart

Find your size (width × thickness) → read kg/m → multiply by total meters needed → compare with 6m or 12m weight columns for standard lengths. This gives an accurate estimate before dispatch and eliminates misunderstandings at billing time.

Section 05 • Applications

Where MS Flats Are Used — and Why Weight Matters for Each

Fabrication • Construction • Industrial • Consistent Geometry

MS Flats are used wherever straight edges, consistent thickness, and easy machinability are needed. You'll find them in frames, base plates, supports, brackets, racks, grills, and general industrial parts across construction and manufacturing.

Gate and grill fabrication: 25×5, 40×6, 50×6 are the most common — flat bars provide the outer frame and internal bar structure
Industrial racks and shelving: heavier sizes (50×8, 75×8) for load-bearing horizontal members
Machine bases and frames: 50×10, 75×10, 100×10 for structural rigidity under vibration and dynamic load
Base plates and anchor plates: 100×12 and 100×16 for heavy equipment mounting where load distribution is critical

Weight matters beyond billing. A flat that is too light for its application will flex, vibrate, or deform under load — compromising the fabricated structure's performance. A flat that is too heavy adds unnecessary dead load and material cost.

💡 Selection Principle

Two apparently similar flats — 50×6 and 50×8 mm — look nearly identical on site. But 50×8 weighs 3.14 kg/m vs 2.355 kg/m for 50×6 — a 33% difference. Over 100 meters, that's 78.5 kg additional weight and proportionally more cost. The chart makes this visible before the purchase order is placed.

In steel buying, the shape is simple — the weight decides the bill. Two flats that look identical can have 30–40% different kg/m depending on thickness. That difference becomes significant at project scale.

Section 06 • Errors

Common Mistakes Buyers Make With MS Flat Weight

Five Errors — And the Correct Practice for Each

❌ Common Mistakes to Avoid

Comparing only width, ignoring thickness — 50×5 and 50×10 look similar in description but have 2× different weight and cost; thickness difference is the bigger cost driver
Mixing kg/m with total kg — treating the per-meter weight as if it were the complete piece weight; a 75×8 flat at 4.71 kg/m in 12m lengths weighs 56.52 kg per piece, not 4.71 kg
Budgeting by piece count — estimating cost from number of pieces without converting to total kg first; steel price is per kg, not per piece
Not accounting for cutting wastage — fabrication always creates scrap; for nested cutting jobs, add 5–10% to quantity estimate
Using old or unverified charts — charts from different sources may use different density constants or tolerances; always use confirmed chart with correct formula (0.00785)

✅ Simple Safe Practice

Specify both width AND thickness — always include full dimension notation: "50×6 mm MS Flat" not just "50 mm flat"
Calculate total weight correctly — kg/m × length in meters × number of pieces = total project weight in kg
Compare cost per kg, not per piece — confirm rate per kg with supplier, then multiply by total calculated weight for accurate cost estimate
Add 5–8% to calculated quantity — for fabrication cutting and wastage, especially for smaller pieces cut from standard length bars
Request kg/m confirmation from supplier — ask supplier to confirm kg/m for the specific size being supplied; this allows bilateral verification before dispatch

Section 07 • Questions

FAQ — MS Flat Weight Chart Questions Answered

Common Questions • Formula • Billing • Size Selection

What is MS Flat (Iron Patti / Loha Patti)?

MS Flat — called Iron Patti or Loha Patti in the Indian market — is a rectangular mild steel flat bar with uniform width and thickness. It is used across construction and manufacturing for frames, base plates, brackets, grill work, racks, supports, and general fabrication. Available in widths from 20 mm to over 150 mm and thicknesses from 3 mm to 25 mm or more, in 6m and 12m standard lengths.

How do you calculate MS Flat weight per meter (kg/m)?

Use: Weight (kg/m) = Width (mm) × Thickness (mm) × 0.00785. Example: 50×6 mm flat: 50 × 6 × 0.00785 = 2.355 kg/m. For total: Total weight (kg) = kg/m × length in meters. For 20 pieces at 6m: 2.355 × 6 × 20 = 282.6 kg total. The constant 0.00785 comes from steel density (7850 kg/m³) converted for mm² area input.

Why does the MS Flat weight chart matter for billing?

Steel is sold and billed by weight (kg or metric ton). The weight chart allows accurate total weight estimation before ordering: kg/m × total length = total kg. This prevents budget overruns, avoids under-ordering based on piece count, and allows correct transport vehicle planning. Without the chart, procurement becomes guesswork that resolves only at billing — usually inconveniently.

Can actual MS Flat weight differ from the chart?

Yes — chart values are theoretical from nominal dimensions. Actual weight varies due to manufacturing tolerance on width and thickness (typically ±2–3% per IS standards). For most procurement purposes, theoretical values are accurate enough for planning. For billing-critical or structural applications, request the Mill Test Certificate (MTC) confirming actual dimensions, and weigh a sample from the delivery if precise verification is needed.

What are the most commonly used MS Flat sizes in India?

Widths of 25, 40, 50, 75, and 100 mm are the most frequently stocked. Thicknesses of 5, 6, 8, and 10 mm cover the majority of construction and fabrication applications. Common combinations are 25×5, 40×6, 50×6, 50×8, 75×8, and 100×10 — each suited to progressively heavier load and structural applications. Use the calculator to verify exact weight for your required combination.

What should I confirm with a supplier before ordering MS Flat?

Confirm: (1) Exact size — both width and thickness in mm; (2) Steel grade — IS 2062 E250 typically; (3) Available lengths — 6m, 12m, or custom cut; (4) kg/m for confirmed size; (5) Total weight for your quantity; (6) Price per kg and total estimate; (7) Whether cutting charges, freight, or taxes apply additionally. These six confirmations prevent billing surprises and ensure fabrication planning is accurate.

Your Trusted MS Flat Supplier — Central India

Vishwageeta Ispat — Raipur, Chhattisgarh

Vishwageeta Ispat supplies MS Flat bars (Iron Patti/Loha Patti), MS angles, MS pipes, structural sections, and all construction steel products for fabrication, construction, and industrial projects across Chhattisgarh and Central India. We stock all standard market sizes in IS 2062 grade. Share your size (Width × Thickness), required length, and quantity — we confirm kg/m, calculate total weight, and respond with a competitive quote within 24 hours.

No billing surprises. Confirmed specifications, transparent pricing, and fast dispatch from Raipur.

📋 Get Quote with Weight 💬 WhatsApp Channel 📞 9200049000