MS Angle
Description
MS Structural Angles (Mild Steel Angle / Angle Iron) | IS 808 / IS 2062 Certified
India's Most Trusted L-Section Structural Steel for Construction, Fabrication & Industrial Applications
Overview
MS Structural Angles, commonly known as Mild Steel Angles, Angle Iron, or Steel Angle Bars, are hot-rolled L-shaped structural steel sections manufactured from low-carbon mild steel conforming to IS 2062 — India's primary standard for structural steel. Available in Equal Leg and Unequal Leg configurations, MS angles are one of the most fundamental and widely consumed structural steel products in India, forming the backbone of construction frameworks, industrial structures, transmission towers, and fabrication projects of all scales.
Dimensioned and toleranced as per IS 808:1989, MS angles are specified by their leg dimensions and thickness — for example, an Equal Angle is denoted as 75 x 75 x 8 mm (Leg A x Leg B x Thickness), while an Unequal Angle is denoted as 75 x 50 x 6 mm. The L-shaped cross-section provides structural support along two planes simultaneously, making MS angles exceptionally efficient for corner connections, bracing, and load distribution in both light and heavy-duty applications.
We stock ISI-certified MS Structural Angles in IS 2062 Grade E250 and E350, sourced from India's leading structural steel manufacturers, available in a wide range of sizes and lengths for immediate supply.
Equal Angle vs Unequal Angle — What's the Difference?
| Parameter | Equal Angle (EA) | Unequal Angle (UA) |
|---|---|---|
| Leg Lengths | Both legs are equal | Two legs of different lengths |
| Designation Example | 75 x 75 x 8 mm | 75 x 50 x 6 mm |
| Load Distribution | Uniform along both axes | Asymmetric — suited for specific load conditions |
| Common Use | General structural, fabrication, framing | Brackets, asymmetric supports, special fabrications |
| Availability | Most widely stocked | Available in select sizes |
Both types form a 90-degree L-shaped cross-section. The choice between equal and unequal angles depends on the structural load requirements and the specific design of your project.
Grades Available — IS 2062
MS Structural Angles are supplied in the following IS 2062 grades, each offering a different balance of strength, weldability, and application suitability:
| Grade | Also Known As | Min. Yield Strength | Min. Tensile Strength | Best For |
|---|---|---|---|---|
| E250 (BR/BO/C) | Fe 410W | 250 MPa | 410 MPa | General fabrication, light structures, frames, gates, shelving |
| E350 (BR/BO/C) | Fe 490W | 350 MPa | 490 MPa | Industrial sheds, transmission towers, bridges, heavy fabrication |
| E450 | Fe 570W | 450 MPa | 570 MPa | Heavy machinery, cranes, offshore structures, high-load applications |
Product Specifications
| Parameter | Specification |
|---|---|
| Standard – Dimensions | IS 808 : 1989 |
| Standard – Material | IS 2062 : 2011 |
| Grades | E250 (BR/BO/C), E350 (BR/BO/C), E450 |
| Type | Equal Angle (EA) / Unequal Angle (UA) |
| Equal Angle Size Range | 20 x 20 x 3 mm to 200 x 200 x 25 mm |
| Unequal Angle Size Range | 30 x 20 x 3 mm to 200 x 150 x 18 mm |
| Thickness Range | 3 mm to 25 mm |
| Standard Lengths | 6 m |
| Manufacturing Process | Hot Rolling |
| Surface Finish | Mill Finish (Black), Red Oxide Primer, Hot-Dip Galvanized (on request) |
| HSN Code | 7216 |
Equal Angle — Size & Weight Reference Chart (IS 808)
| Size (mm) | Thickness (mm) | Weight (kg/m) |
|---|---|---|
| 20 x 20 | 3 | 0.90 |
| 25 x 25 | 3 | 1.14 |
| 30 x 30 | 3 | 1.39 |
| 35 x 35 | 5 | 2.60 |
| 40 x 40 | 5 | 2.97 |
| 45 x 45 | 5 | 3.38 |
| 50 x 50 | 5 | 3.77 |
| 50 x 50 | 6 | 4.47 |
| 65 x 65 | 6 | 5.84 |
| 75 x 75 | 8 | 8.96 |
| 90 x 90 | 8 | 10.80 |
| 100 x 100 | 8 | 12.10 |
| 100 x 100 | 10 | 14.90 |
| 110 x 110 | 10 | 16.60 |
| 130 x 130 | 10 | 19.70 |
| 150 x 150 | 12 | 27.30 |
| 200 x 200 | 16 | 48.50 |
Weights are theoretical as per IS 808. Actual weights may vary marginally within rolling tolerances. Confirm with MTC for critical applications.
Mechanical Properties
| Property | E250 (Fe 410W) | E350 (Fe 490W) | E450 (Fe 570W) |
|---|---|---|---|
| Min. Yield Strength | 250 MPa | 350 MPa | 450 MPa |
| Min. Tensile Strength | 410 MPa | 490 MPa | 570 MPa |
| Min. Elongation | 23% | 22% | 20% |
| Charpy Impact (min.) | 27 J at 0°C | 27 J at 0°C | 27 J at 0°C |
Chemical Composition
| Element | E250 (max.) | E350 (max.) |
|---|---|---|
| Carbon (C) | 0.23% | 0.20% |
| Manganese (Mn) | 1.50% | 1.55% |
| Silicon (Si) | 0.40% | 0.45% |
| Sulfur (S) | 0.045% | 0.045% |
| Phosphorus (P) | 0.045% | 0.045% |
| Carbon Equivalent (CE) | 0.42% max. | 0.42% max. |
The low carbon content in both grades ensures excellent weldability without the need for pre-heating in most standard welding applications.
Key Features & Benefits
- High Structural Strength
- Excellent Weldability
- Easy to Cut, Drill, Punch & Fabricate
- L-Shape Provides Dual-Plane Support
- Versatile in Equal & Unequal Configurations
- Wide Size Range for Every Application
- Hot-Dip Galvanizing Available for Corrosion Protection
- ISI Marked — IS 808 / IS 2062 Certified
- Available in Standard & Custom Cut Lengths
- Mill Test Certificates (MTC) Available on Request
Applications
MS Structural Angles are among the most universally used structural steel sections in India, specified across virtually every construction and industrial sector:
Construction & Civil Infrastructure:
- Structural frameworks for industrial sheds, warehouses, and factories
- Roof trusses, purlins, and rafter supports in steel buildings
- Columns, bracings, and base plates in framed structures
- Pre-engineered building (PEB) secondary structural members
- Stair stringers, treads, and mezzanine floor supports
Power & Transmission:
- Transmission line towers and sub-transmission structures
- Power distribution pole cross-arms and stay frames
- Sub-station structures, bus bar supports, and cable trays
Fabrication & General Engineering:
- Machine frames, equipment bases, and skid structures
- Industrial racks, storage shelves, and pallet racking systems
- Conveyor frames, gantry structures, and overhead crane rails
- Lintels, window frames, door frames, and grills
- Agricultural equipment frames and implements
Infrastructure & Transportation:
- Road sign gantries, highway guardrail posts, and traffic structures
- Railway platform canopy structures and walkway supports
- Bridge bracing, girder connections, and handrail posts
Solar & Renewable Energy:
- Ground-mounted solar panel module mounting frames
- Rooftop solar panel support structures
- Solar tracker framework and support rails
Miscellaneous:
- Fencing, gate frames, boundary structures
- Furniture frames, trolleys, and material handling equipment
- Boat, trailer, and vehicle chassis reinforcements
Applicable Standards & Certifications
| Standard | Description |
|---|---|
| IS 808 : 1989 | Dimensions for Hot Rolled Steel Beam, Column, Channel, and Angle Sections |
| IS 2062 : 2011 | Hot Rolled Medium and High Tensile Structural Steel Specification |
| EN 10025 | European equivalent for hot-rolled structural steel products |
| ASTM A36 | American equivalent structural steel grade (closest to IS 2062 E250) |
| BS EN 10056 | British / European standard for equal and unequal leg steel angles |
All angles are supplied with ISI / BIS certification and Mill Test Certificates (MTC) as per EN 10204 3.1 on request.
How to Choose the Right Grade
| Use Case | Recommended Grade |
|---|---|
| General fabrication, light structures, frames, gates, grills, shelving | IS 2062 E250 BR (Most Popular) |
| Industrial sheds, heavy structural frameworks, transmission towers | IS 2062 E350 BR |
| Cranes, heavy machinery, offshore or high-dynamic load applications | IS 2062 E450 |
Available Brands
We stock MS Structural Angles from India's leading ISI-certified structural steel manufacturers.
All brands stocked by us are BIS / ISI certified and conform to IS 808 and IS 2062 as applicable. Mill Test Certificates available on request.
Frequently Asked Questions (FAQs)
Q: What is the IS code for MS Structural Angles? MS Structural Angles are governed by two standards: IS 808:1989 (dimensions and sectional properties) and IS 2062:2011 (material grade, chemical composition, and mechanical properties). Together, these two standards fully define the quality and geometry of every ISI-certified angle.
Q: What is the most commonly used MS angle grade in India? IS 2062 E250 BR (as-rolled condition) is by far the most widely stocked and specified grade for general construction, fabrication, and structural applications across India. For heavier loads and high-stress structures like transmission towers or industrial sheds, IS 2062 E350 is preferred.
Q: What is the difference between Equal and Unequal Angles? Equal Angles have both legs of the same length (e.g., 75 x 75 x 8 mm) and are used where uniform strength is needed along both axes. Unequal Angles have legs of different lengths (e.g., 75 x 50 x 6 mm) and are used for asymmetric structural connections, brackets, and support members where one leg must span a greater distance.
Q: Can MS angles be galvanized? Yes. MS Structural Angles can be hot-dip galvanized after fabrication for superior corrosion protection, making them suitable for outdoor, coastal, agricultural, and other corrosion-prone environments. Pre-galvanized angles are also available in select sizes.
Q: What standard lengths are MS angles available in? Standard lengths are 6 m, 9 m, and 12 m. Custom cut-to-length is available on request to minimize on-site waste and reduce cutting time.
Q: What is the HSN Code for MS Structural Angles? The HSN Code for hot-rolled MS Structural Angles is 7216.
MS Structural Angles — ISI Certified. Hot Rolled. The Cornerstone of India's Steel Construction.
Key Features
- Available in Standard & Custom Cut Lengths
- Easy to Cut, Drill, Punch & Fabricate
- Excellent Weldability
- High Structural Strength
- Hot-Dip Galvanizing Available for Corrosion Protection
- ISI Marked — IS 808 / IS 2062 Certified
- L-Shape Provides Dual-Plane Support
- Mill Test Certificates (MTC) Available on Request
- Versatile in Equal & Unequal Configurations
- Wide Size Range for Every Application
