S355JR
S355JR is a non-alloy structural steel grade conforming to EN 10025-2 with a minimum yield strength of 355 MPa. It offers excellent weldability, machinability, and cost-effectiveness for structural and engineering applications. Lanoit Special Steel Industries is one of the largest and most reliable suppliers, distributors, and manufacturer-supported stockists of S355JR steel in Mumbai, India. We supply S355JR round bars, flats, plates, and customized sections in certified quality for building structures, bridges, fabrication, construction equipment, and storage tanks. As a leading steel supplier across India, we maintain extensive stock for immediate delivery with complete mill test certificates.
MANUFACTURING & AVAILABILITY
Lanoit Steel Industries supplies S355JR in various conditions including As-Rolled, Annealed, Normalized, and Quenched & Tempered (Q&T), catering to diverse industrial requirements from oil & gas downhole tools to automotive drive shafts. Lanoit Special Steel Industries is recognized as one of the leading suppliers of specialty steel grades and round bars, serving industries that demand high-quality materials and reliable sourcing. With a focus on a wide range of steel products, Lanoit Special Steel Industries is considered among the top providers for special steel needs.
| Finish Condition | Size Range (MM) | Size Range (Inches) | |
|---|---|---|---|
| Hot Rolled | 16mm – 300mm | 5/8" – 12" | |
| Cold Rolled | 5mm – 100mm | 3/16" – 4" | |
| Peeled & Polished | 20mm – 150mm | 3/4" – 6" | |
| Ground & Polished | 5mm – 80mm | 3/16" – 3" | |
| Forged | 200mm – 800mm | 8" – 32" | |
| Proof Machined | As per drawing | As per drawing |
Heat Treatment Guide & Properties
S355JR is typically supplied in as-rolled or normalized condition. Unlike alloy steels, it is not intended for quenching and tempering but can undergo normalizing and stress relieving to improve structural performance.
Normalizing
Refines grain structure and improves toughness.
Stress Relieving
Reduces internal stresses after welding or fabrication.
Hot Working
Suitable temperature range for forging and forming.
Standard Lengths
3m 6m 9m
3 - 9 meters
Custom cutting available
■ Chemical Composition
S355JR features controlled carbon content with manganese and silicon additions to achieve good strength, weldability, and structural performance. The balanced composition ensures reliable mechanical behavior in fabrication and load-bearing applications.
■ Mechanical Properties
S355JR provides high yield strength with good ductility and impact toughness at room temperature (JR condition). It performs reliably in welded structures and heavy fabrication components.
Quality & Standards
Materials are processed and reviewed following standard procedures. Various checks are performed to assess general quality and consistency. Our products are throughly tested for grade S355JR. Lanoit Special Steel Industries is a recognized provider in the steel sector, known for supplying a wide range of steel products. The company works with experienced teams and standard practices to support reliable material availability.
ISO 9001:2015
Standard quality management processes are followed for routine assessments.
Ultrasonic
Inspections may be conducted to check internal structure according to common practices.
Mechanical
Mechanical properties are examined using standard testing methods.
Chemical
Chemical composition is assessed through routine analysis techniques.
Industries We Supply
Lanoit Special Steel Industries is one of the leading suppliers and exporters of steel, catering to a wide range of industries worldwide. We supply multiple grades of steel in round bars and other forms, meeting diverse application requirements with consistent quality and reliable delivery.
Oil, Gas & Energy
Steel supplied for critical applications where reliability and performance are essential under extreme operating conditions.
- Round Bars
- Forged Components
- Flanges & Fittings
Automotive & Engineering
Supporting OEMs and component manufacturers with consistent quality steel for precision and high-load applications.
- Shafts & Axles
- Transmission Parts
- Machined Components
Manufacturing & Industrial Machinery
Widely used across general engineering, heavy machinery, and equipment manufacturing.
- Round Bars
- Gear Blanks
- Hydraulic & Mechanical Parts
Infrastructure, Mining & Agriculture
Supplying durable steel products for demanding environments and long service life.
- Structural Components
- Wear Parts
- Fasteners & Bolting
Frequently Asked Questions
Common queries about S355JR selection, processing, and application.
GLOBAL REACH
Lanoit Special Steel Industries Serving Industries Worldwide
India
- Mumbai, Maharashtra
- Pune, Maharashtra
- Ahmedabad, Gujarat
- Chennai, Tamil Nadu
- Delhi, NCR
- Bangalore, Karnataka
- Hyderabad, Telangana
- Vadodara, Gujarat
Middle East
- Dubai, UAE
- Abu Dhabi, UAE
- Riyadh, Saudi Arabia
- Jeddah, Saudi Arabia
- Doha, Qatar
- Muscat, Oman
- Kuwait City, Kuwait
- Manama, Bahrain
Europe
- London, UK
- Berlin, Germany
- Paris, France
- Milan, Italy
- Madrid, Spain
- Antwerp, Belgium
- Rotterdam, Netherlands
Americas & Asia
- New York, USA
- Houston, USA
- Toronto, Canada
- Singapore
- Kuala Lumpur, Malaysia
- Jakarta, Indonesia
- Bangkok, Thailand
Looking for a Specific Steel Grade?
Lanoit Special Steel Industries offers a comprehensive range of steel grades tailored to meet diverse industrial needs.
Get Quote Now