RS Joist Manufacturer & Supplier in India
Sarthak Ispat Private Limited is a reliable RS Joist (Rolled Steel Joist) manufacturer, supplier, and exporter in India, supplying high-strength structural joists for industrial buildings, infrastructure projects, heavy fabrication, and global EPC contracts.
Our RS Joists, including widely used profiles such as ISHB (Indian Standard Heavy Beam) and WPB (Wide Plate Beam), are hot-rolled structural steel sections designed to deliver excellent load-bearing capacity, structural rigidity, and fabrication efficiency. Manufactured in compliance with IS 2062 and IS 808 standards, Sarthak Ispat’s RS Joists are trusted for both domestic construction and international export applications.
What is an RS Joist?
An RS Joist (Rolled Steel Joist) is a hot-rolled structural steel section used primarily as a load-bearing member in buildings and industrial structures. RS Joists typically feature a beam-like cross-section that provides high resistance to bending and shear forces.
In the Indian and international steel market, RS Joists are commonly designated as ISHB (Indian Standard Heavy Beam) or WPB (Wide Plate Beam), depending on flange width and sectional proportions. These sections are preferred where higher strength and stiffness are required compared to standard medium beams.
Sarthak Ispat manufactures RS Joists with strict dimensional accuracy to ensure predictable structural behavior, ease of fabrication, and reliable performance under heavy loads.
RS Joist Size Range & Classification
Sarthak Ispat supplies a wide range of RS Joist profiles to meet medium, heavy, and extra-heavy structural requirements.
| RS Joist Type | Typical Size Range | Structural Application |
|---|---|---|
| ISHB Sections | 150 → 350 depth | Heavy industrial buildings, infrastructure |
| WPB Sections | 160 → 300 depth | Wide span structures, load-intensive frames |
| Heavy RS Joists | 350 & above | Power plants, heavy engineering projects |
Exact designations, sectional properties, weights per meter, and thickness details are provided with Mill Test Certificates for engineering review and approval.
Steel Grades & Mechanical Properties
All RS Joists manufactured by Sarthak Ispat are produced using certified structural steel grades to ensure strength, durability, and long-term performance.
- IS 2062 E250 – Standard grade for general structural use
- IS 2062 E350 – Higher yield strength for heavy & dynamic loads
- Excellent weldability and fabrication characteristics
- Uniform yield strength and tensile properties
- Mill Test Certificate (MTC) supplied with every supply
Applications of RS Joists
RS Joists supplied by Sarthak Ispat are widely used in projects requiring high structural strength and stability:
- Industrial sheds, factories, and heavy warehouses
- Infrastructure projects including bridges and flyovers
- Power plants, refineries, and process industries
- Heavy engineering structures and load-bearing frames
- Commercial buildings with large spans
- Export EPC projects across Middle East, Africa, and Asia
Manufacturing Process & Quality Assurance
Sarthak Ispat operates advanced rolling facilities supported by strict quality control systems to ensure reliable RS Joist performance. Each joist undergoes multiple inspection stages before dispatch.
- Controlled billet sourcing and hot rolling
- Dimensional accuracy and straightness inspection
- Chemical and mechanical testing as per IS standards
- Visual and ultrasonic inspection on request
- BIS & ISO compliant manufacturing processes
- Export-grade packaging and documentation support
Procurement, Supply Capability & Export Readiness
Sarthak Ispat supports domestic and international procurement for EPC contractors, infrastructure developers, fabricators, and industrial buyers.
- Bulk supply for infrastructure & EPC projects
- Project-wise production planning and dispatch
- Domestic logistics and port-based exports
- Documentation: MTC, Invoice, Packing List, Certificate of Origin
- FOB, CIF, and project-specific delivery terms
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For pricing, bulk quantities, heavy project requirements, or export orders, connect with Sarthak Ispat’s centralized inquiry team.
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RS Joist Technical Specifications & Section Properties
Sarthak Ispat supplies precision-engineered RS Joists (Rolled Steel Joists) with accurate sectional dimensions, weight consistency, and mechanical strength. These properties are critical for structural engineers, consultants, and EPC contractors working on load-bearing steel structures.
| Parameter | Typical Range |
|---|---|
| Depth (D) | 150 mm – 600 mm |
| Flange Width (B) | 75 mm – 250 mm |
| Web Thickness (Tw) | 5 mm – 12 mm |
| Flange Thickness (Tf) | 7 mm – 20 mm |
| Weight per Meter | 15 kg/m – 120+ kg/m |
| Steel Grade | IS 2062 E250 / E350 |
| Applicable Standard | IS 808 / BIS |
Detailed sectional properties, moment of inertia, and section modulus are available with Mill Test Certificates and structural drawings on request.
Difference Between RS Joist, I Beam & H Beam
Understanding the difference between RS Joists, I Beams, and H Beams helps in selecting the right structural steel section based on load, span, and application requirements.
| Feature | RS Joist (ISHB / WPB) | I Beam (ISMB) | H Beam |
|---|---|---|---|
| Load Bearing Capacity | High | Medium | Very High |
| Flange Width | Moderate | Narrow | Wide |
| Structural Stability | Excellent | Standard | Superior |
| Typical Applications | Industrial & infrastructure | Residential & light structures | Heavy engineering & mega projects |
Industrial Applications of RS Joists in Construction & Infrastructure
RS Joists manufactured by Sarthak Ispat are widely used across multiple industries due to their strength, durability, and structural efficiency.
- Pre-engineered buildings (PEB structures)
- Heavy industrial sheds and warehouses
- Power plants and oil & gas infrastructure
- Bridges, flyovers, and infrastructure projects
- High-load commercial and industrial buildings
- Steel fabrication and structural engineering projects
- Export EPC projects in Middle East and Africa
Packaging, Marking & Delivery of RS Joists
Sarthak Ispat ensures safe handling, identification, and delivery of RS Joist steel sections for both domestic and export markets.
- Bundle and loose supply options based on project requirement
- Each section marked with heat number and identification code
- Optional anti-corrosion oil coating for export shipments
- Truck, rail, and container-based logistics support
- Seaworthy export packaging for international shipments
RS Joist Exporter from India – Global Supply Capability
Sarthak Ispat is a trusted RS Joist exporter from India, serving international markets with high-quality structural steel sections. We support global EPC contractors, infrastructure developers, and steel traders.
- United Arab Emirates (UAE)
- Saudi Arabia
- Oman and Qatar
- African countries
- Southeast Asian markets
Export documentation includes Invoice, Packing List, Mill Test Certificate, and Certificate of Origin.
Certifications, Testing & Quality Documentation
Every RS Joist supplied by Sarthak Ispat is backed by complete quality assurance and certification documentation.
- Mill Test Certificate (MTC)
- BIS compliant manufacturing
- ISO quality standards
- Chemical composition and mechanical test reports
- Third-party inspection (SGS / TUV / NABL labs on request)
Frequently Asked Questions – RS Joist
What is the standard weight of RS Joist?
RS Joist weight depends on section size and ranges from approximately 15 kg per meter to over 120 kg per meter for heavy sections.
What is the difference between ISHB and RS Joist?
ISHB is a specific classification under RS Joists, representing heavy beam sections with higher load capacity.
What grade steel is used in RS Joists?
RS Joists are typically manufactured using IS 2062 E250 and E350 grades, ensuring strength and durability.
Do you supply RS Joists for export projects?
Yes, we provide bulk supply with complete export documentation for international infrastructure and EPC projects.
Get Best Price for RS Joists – Bulk Supply & Export Orders
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