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In the boiler and refinery world, choosing the wrong steel grade can mean leaks, failures, or costly shutdown penalties. That’s why EPC contractors, refineries, and offshore plants rely on SA516 Gr 415 Boiler Quality Plates for guaranteed safety and compliance.
At Navgraha Steels INC, Mumbai – Maharashtra – India, we supply IBR approved, NACE compliant, and HIC tested SA516 Gr 415 Plates that:
With Navgraha, you don’t just buy plates — you buy peace of mind.
SA516 Gr 415 is a pressure vessel quality steel plate, engineered for strength, toughness, and weldability. It’s widely used where boiler and pressure vessel compliance is non-negotiable.
Key industries include:
These sheets are chosen when toughness, weldability, and sour service safety cannot be compromised.
Procurement managers often face 3 pain points
With Navgraha Steels INC, those risks disappear
That’s why we are trusted by global EPCs, refineries, and engineering consultants
| Property | Typical Value | Why It Matters |
|---|---|---|
| Tensile Strength | 550–710 MPa | Withstands pressure & temperature extremes |
| Yield Strength | Min 240 MPa | Prevents permanent deformation |
| Elongation | 18–22% | Allows safe fabrication & bending |
| Impact Resistance | Up to -20°C | Safe for offshore & cold environments |
| Hardness (BHN) | ≤ 250 | Ensures machinability & weld safety |
These properties make SA516 Gr 415 Plates ideal for critical boilers, vessels, and refinery installations.
| Element | % Range | Purpose |
|---|---|---|
| Carbon (C) | ≤ 0.20 | Strength while keeping weldability |
| Manganese (Mn) | 0.55–1.20 | Adds toughness & ductility |
| Phosphorus (P) | ≤ 0.015 | Prevents brittle fractures |
| Sulfur (S) | ≤ 0.008 | Low levels reduce cracking risks |
| Silicon (Si) | 0.13–0.45 | Improves stability at high heat |
The controlled chemistry ensures audit compliance and long-term reliability in sour service & high-pressure applications.
Our SA516 Gr 415 Plates comply with leading global boiler and pressure vessel standards:
With IBR approval, NACE compliance, and HIC certification, our plates are accepted across EPC, refinery, and power projects worldwide
Each coil is shipped with EN 10204 3.1 / 3.2 Mill Test Certificates for traceability.
Our plates are supplied in multiple heat treatment conditions, depending on project demands
Each plate comes with EN 10204 3.1 / 3.2 MTCs for traceability and audit compliance
Fabricators often worry about cracking, machinability, and delays during construction.
With Navgraha’s SA516 Gr 415 Plates, you get:
That means lower costs, faster fabrication, and safe project execution.
When you buy from Navgraha Steelss INC, you get more than just plates:
That’s why Navgraha is the preferred partner for EPC contractors, refineries, and power projects worldwide.
We supply all major variants demanded by refinery audits & EPC projects:
Whatever your requirement, Navgraha delivers globally certified, inspection-ready plates.
From Mumbai’s Nhava Sheva Port, Navgraha Steels INC exports SA516 Gr 415 Boiler Quality Plates to critical industries worldwide:
Packaging Assurance: Export-ready with wooden pallets, steel strapping, shrink wrap & edge protection → plates arrive inspection-ready and intact.
Before purchasing, buyers should check these key factors:
Navgraha Tip: Always ask for dual-certified (IBR + NACE) plates to avoid last-minute refinery audit rejections.
Every SA516 Gr 415 Plate from Navgraha is delivered with audit-ready documentation:
This ensures your supply is globally accepted and audit-proof.
Yes, Navgraha supplies IBR approved, NACE compliant, and HIC tested plates.
Thickness: 6–200 mm, Width: up to 3000 mm, Length: up to 12,000 mm
Yes, plates are supplied with EN 10204 3.1/3.2 MTCs, verified by Lloyds, TÜV, ABS, or DNV.
Prices vary with thickness, certification, and order volume. Contact us for the latest quote.
We export to GCC, Africa, Asia-Pacific, and Europe with seaworthy packaging.
Because we deliver audit-ready, certified plates with global compliance and timely export delivery.
Don’t risk project delays with uncertified supply.
With Navgraha Steels INC, Mumbai, you receive:
Call to Action: Request a price quote & datasheet today — secure SA516 Gr 415 Plates that guarantee safety, compliance, and on-time delivery.
