Core Material Testing Services LLP

Stainless Steel Bars (SS Bars) are high-strength, corrosion-resistant metal bars used in construction, manufacturing, and industrial applications. Made from stainless steel alloys, they offer durability, high tensile strength, and excellent resistance to rust and oxidation. They comply with IS 1608 (part-01) : 2022 and IS 1599 : 2023.
Types of Stainless Steel Bars
🔹 Round Bars – Used in machinery, fasteners, and construction
🔹 Flat Bars – Ideal for structural applications, frames, and brackets
🔹 Square Bars – Used in fabrication, gates, and grills
🔹 Hexagonal Bars – Commonly used in bolts, nuts, and fasteners
🔹 Angle Bars – Provides structural support in buildings and frameworks
Common Grades & Properties
💎 Austenitic Stainless Steel (300 Series)
✅ SS 304 – General-purpose, high corrosion resistance
✅ SS 316 – Marine-grade, resistant to chemicals & saltwater
✅ SS 321 – High-temperature resistance, used in heat exchangers
💎 Ferritic & Martensitic Stainless Steel (400 Series)
✅ SS 410 – High strength, used in cutlery & mechanical parts
✅ SS 420 – Hardened for surgical tools & blades
✅ SS 430 – Decorative applications, resistant to oxidation
💎 Duplex Stainless Steel
✅ SS 2205 & SS 2507 – High strength, corrosion-resistant for harsh environments

HT (High Tensile) Strands Wire is a high-strength, low-relaxation steel wire used primarily in prestressed concrete (PSC) structures, including bridges, flyovers, highways, railway sleepers, and high-rise buildings. Manufactured from high-carbon steel, these strands provide superior tensile strength, durability, and resistance to elongation, making them essential in modern construction and infrastructure projects.

HT Strands conform to international standards like IS 14268, ASTM A416, BS 5896, and EN 10138, ensuring high performance and reliability in load-bearing applications.

✅ High Tensile Strength – Ranges from 1720 MPa to 1960 MPa, offering excellent load-bearing capacity
✅ Low Relaxation Properties – Reduces stress loss over time, ensuring long-term performance
✅ Corrosion & Fatigue Resistance – Can be galvanized or coated for enhanced durability
✅ Superior Bonding with Concrete – Available in plain, indented, or epoxy-coated finishes
✅ Flexible & Lightweight – Provides ease of handling and installation in prestressed applications

�� Uncoated Stress-Relieved Strands – Standard for bridges, railway sleepers, and buildings
�� Galvanized & Greased Strands – Designed for corrosion-prone environments (marine, tunnels, etc.)
�� Low-Relaxation HT Strands – Used in long-span prestressed structures for minimal stress loss
�� Indented Surface Strands – Enhances bonding with concrete in prestressed structures

Mild Steel (MS) Angles are structural steel components with an L-shaped cross-section, widely used in construction, fabrication, and industrial applications. These angles offer high strength, durability, and excellent weldability, making them ideal for structural frameworks, reinforcements, and support structures.

�� Equal MS Angle – Both sides are of equal length (e.g., 50mm × 50mm)
�� Unequal MS Angle – One side is longer than the other (e.g., 75mm × 50mm)
�� Galvanized MS Angle – Coated with zinc for corrosion resistance
�� Hot Rolled (HR) MS Angle – Stronger and more durable for heavy-duty applications
�� Cold Rolled (CR) MS Angle – More precise dimensions and a smoother finish