What is SAILMA 550HI?
What are the Applications of SAILMA 550HI
Equivalent Grade of SAILMA 550HI
What are the Benefits of Choosing SAILMA 550HI
Chemical Composition of SAILMA 550HI
Mechanical Properties of SAILMA 550HI
Our Products – SAILMA 550HI Grades
The equivalent grades of SAILMA 550HI include IS 2062 E550, ASTM A572 Grade 65/70, EN S550, DIN St52-3, and JIS SM570. These structural steel grades provide comparable high yield strength, excellent weldability, and strong load-bearing capacity, making them suitable alternatives for heavy engineering, bridge construction, industrial structures, and demanding fabrication applications where reliable high-strength steel is required.
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SAILMA 550HI steel plates offer multiple advantages for heavy structural and industrial applications. They provide very high yield strength and excellent load-bearing capacity, making them ideal for demanding engineering projects and large-scale infrastructure. The steel also has excellent toughness, hardness, and durability, ensuring reliable performance under extreme stress and harsh environmental conditions. Additionally, SAILMA 550HI offers good weldability, ductility, and ease of fabrication, which allows it to be efficiently cut, formed, and assembled into complex structural components. These properties make it a preferred choice for bridges, cranes, heavy machinery, mining equipment, and structural frameworks where safety, strength, and long-term performance are critical.
SAILMA 550HI steel plates have a carefully controlled chemical composition to provide high strength, toughness, and excellent weldability for heavy structural and engineering applications. Each alloying element plays a critical role in ensuring performance under demanding conditions:
Carbon (C): Provides high strength and hardness while maintaining good formability. The carbon content is carefully controlled to balance strength and ductility.
Manganese (Mn): Enhances strength, hardness, and hardenability, contributing to overall durability and mechanical performance.
Silicon (Si): Acts as a deoxidizer and improves strength and oxidation resistance.
Phosphorus (P): Kept at low levels to maintain good ductility and prevent brittleness.
Sulfur (S): Limited to improve machinability while ensuring structural integrity and toughness.
| Carbon (C) | Silicon (Si) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) |
|---|---|---|---|---|
| 0.20–0.25% | 0.15–0.60% | 1.20–1.80% | Max 0.035% | Max 0.035% |
The mechanical properties of SAILMA 550HI steel plates are designed for high-strength structural applications. They include a minimum yield strength of 550 MPa and a tensile strength ranging from approximately 600 to 750 MPa. The steel typically offers elongation of about 16% to 20%, providing good ductility for fabrication, forming, and welding processes.
In addition, SAILMA 550HI provides excellent hardness, toughness, and impact resistance, making it suitable for heavy engineering, bridge construction, mining machinery, cranes, and industrial structural projects where high strength, reliability, and long-term performance are required.
| Yield Strength | Tensile Strength | Elongation | Hardness | Thickness |
|---|---|---|---|---|
| 550 MPa | 650 – 800 MPa | 14% – 18% | 190 – 240 HBW | 6 mm – 120 mm |
We offer a comprehensive range of SAILMA Steel Plate grades for heavy engineering and structural applications. Our SAILMA 550HI plates are designed for high-strength, load-bearing, and durable performance, making them ideal for bridges, cranes, construction equipment, mining machinery, and industrial structures.
In addition to SAILMA 550HI, our product range includes SAILMA 250HI, SAILMA 350HI / E350, SAILMA 410 / E410, SAILMA 450HI, and other high-tensile structural steel plates. Each grade is manufactured to meet strict quality standards, ensuring excellent weldability, toughness, and long-term reliability for demanding engineering and fabrication projects.
Call Now:- +91 8447070292, +91 9811191193, +91 9899747099
Gmail ID: sales@sssmgroup.com, info@shivshaktisteelmetals.com
Office Address:- 26N, Rajiv Gandhi Colony, New Industrial Township, Faridabad, Haryana 121005
SAILMA 250HI
SAILMA 350HI / SAILMA E350
SAILMA 410 / SAILMA E410
SAILMA 450HI
SAILMA 550HI
Sailma Steel India supplies high-strength SAILMA steel plates for construction, heavy engineering, infrastructure, machinery, and structural fabrication industries across India.
SAILMA 250HI
SAILMA 350HI / SAILMA E350
SAILMA 410 / SAILMA E410
SAILMA 450HI
SAILMA 550HI
sales@sssmgroup.com, info@shivshaktisteelmetals.com