Complete Guide to Steel Grades with Chart & Explained Types
                     Steel Grades Explained
Types, Products & Applications for Indian Construction
FOUNDATION
What Are Steel Grades?
Steel grades are standardized classifications 
that define steel based on chemical 
composition, mechanical properties, strength, 
and resistance characteristics.
These classifications help determine whether a 
material is suitable for structural use, 
fabrication, pressure applications, or corrosive 
environments.
In India, steel grades commonly follow IS, 
ASTM, EN, and DIN standards.
TYPE 1
Carbon Steel
Plates & Sheets Pipes & Bars
High strength structural material for frameworks and construction Versatile products for infrastructure and engineering applications
Common Grades: IS 2062, ASTM A36, C45 • Key Properties: High strength, good weldability, cost-effective, easy to fabricate
TYPE 2
Stainless Steel
Corrosion-Resistant Excellence
Contains chromium forming a protective oxide layer, 
making it resistant to corrosion and oxidation.
Products: Sheets, plates, coils, pipes, tubes, round bars
304 & 304L 316 & 316L 310
General purpose grade Marine applications High temperature
Alloy & Duplex Steel
Alloy Steel Duplex Steel
Grades: EN19, EN24, ASTM A335, A387 Grades: UNS S32205, S32750
Contains chromium, nickel, molybdenum for improved strength Mixed microstructure offering higher strength and corrosion 
and toughness. High tensile strength and fatigue resistance. resistance. Excellent chloride corrosion resistance.
Products: Plates, pipes, round bars, forged components Products: Plates, pipes, fittings
Steel Grades Quick Reference
Steel Type Typical Grades Product Forms Key Uses
Carbon Steel IS 2062, A36 Plates, Sheets, Pipes, Bars Structural frameworks
Stainless Steel 304, 316 Sheets, Plates, Coils, Pipes Buildings, transport
Alloy Steel EN24, EN19 Bars, Plates, Pipes Heavy construction
Duplex Steel S32205 Plates, Pipes, Fittings Coastal & industrial
Nickel Alloy Inconel, Monel Pipes, Plates High-temperature zones
APPLICATIONS
Construction Applications
Structural High-Rise Industrial 
Frameworks Buildings Construction
Carbon steel plates, Stainless steel sheets and Alloy steel plates and 
beams, and bars for coils for façades, pipes for power plants, 
residential buildings, staircases, railings, and cement factories, and 
industrial sheds, bridges, roofing refineries
and flyovers
Specialized Applications
Coastal Infrastructu
Construction re Utilities
Why Steel Is Preferred
• High strength-to-weight ratio
• Long service life
• Adaptable to diverse environments
• Easy availability in multiple grades
Extreme • Recyclable and sustainable
Environm
ents
Each steel type serves specific environmental and operational requirements across Indian infrastructure 
projects.
Making the Right Choice
Assess Requirements
Evaluate application needs and environmental conditions
Select Grade
Match steel grade to strength and resistance requirements
Choose Product
Select appropriate product form for construction needs
Understanding steel grades and product forms ensures better safety, durability, and 
cost efficiency in Indian construction projects.
Connect With Us
Navgraha Steels Inc.
Your trusted partner for quality steel products 
and expert guidance in material selection.
Website:navgrahasteelsinc.com Phone:+91 96192 67263 Email:[email protected]