Home > Products > SA 516 Gr 485 > SA516 Gr 485 Plates
When it comes to boiler and pressure vessel projects, one mistake in choosing the wrong grade can result in equipment failure, costly shutdowns, or audit rejection.
At Navgraha Steels INC, Mumbai – Maharashtra – India, we supply SA516 Gr 485 Plates that deliver:
You don’t just buy plates — you buy peace of mind and project security.
SA516 Gr 485 is a pressure vessel quality steel plate, designed to withstand high pressure, high temperature, and corrosive environments.
It is widely used in:
This grade is chosen when toughness and safety under extreme conditions are non-negotiable
Project managers and procurement officers often face these pain points:
Navgraha Steels INC solves these concerns with:
That’s why EPCs, refineries, and power plants trust our plates for mission-critical projects.
| Property | Typical Value | Why It Matters |
|---|---|---|
| Tensile Strength | 590–770 MPa | Handles high-pressure boilers & vessels |
| Yield Strength | Min 275 MPa | Prevents deformation under heavy loads |
| Elongation | 17–21% | Provides ductility during fabrication |
| Impact Resistance | Up to -20°C | Safe for low-temperature operations |
| Hardness (BHN) | ≤ 250 | Ensures weldability & machinability |
These properties ensure strength, safety, and long service life.
| Element | % Range | Why Controlled? |
|---|---|---|
| Carbon (C) | ≤ 0.21 | Balance of strength & weldability |
| Manganese (Mn) | 0.55–1.20 | Improves toughness & resistance |
| Phosphorus (P) | ≤ 0.015 | Prevents brittle cracking |
| Sulfur (S) | ≤ 0.008 | Reduces risk of corrosion & cracking |
| Silicon (Si) | 0.13–0.45 | Provides thermal stability |
Low P & S levels = crack resistance and compliance with refinery safety standards.
Our plates conform to international boiler & pressure vessel standards, making them accepted worldwide:
With IBR, NACE, and HIC certifications, these plates pass refinery audits in GCC, Africa, Asia, and Europe.
We maintain ready stock and mill supply of SA516 Gr 485 Plates in:
Buyer Tip: Choosing cut-to-size supply minimizes wastage and reduces project delays.
Our plates are available in multiple heat treatment conditions to suit your project needs:
Every plate is backed with EN 10204 3.1 / 3.2 MTCs for complete traceability.
Procurement managers often ask: “Will these plates perform well during fabrication?”
With Navgraha Steels INC’s SA516 Gr 485 Plates, you get:
Result: Fewer rejections, faster delivery, lower fabrication costs.
We don’t just sell plates; we deliver compliance + reliability.
Navgraha = On-time delivery + Audit-ready plates + Zero compromise on quality.
We supply every variant EPCs and refineries demand:
With Navgraha, you always receive project-ready and globally accepted plates.
From Mumbai’s Nhava Sheva Port, Navgraha Steels INC exports audit-ready SA516 Gr 485 Plates to leading industries worldwide:
Export Packaging: Wooden pallets, steel banding, edge protection → plates arrive inspection-ready.
Before placing your order, confirm these key points:
Navgraha Tip: Always request IBR + NACE dual compliance to avoid last-minute refinery audit failures.
Every SA516 Gr 485 Plate we deliver comes with complete documentation & compliance proof:
With Navgraha, you get audit-ready plates that pass inspections globally.
It ensures resistance to sulfide stress cracking (SSC) in hydrogen sulfide (H₂S) service, making them mandatory for refineries.
Yes, we supply IBR-certified coils for Indian boiler applications.
Yes, we stock NACE + HIC tested coils for refinery and petrochemical projects.
Thicknesses 6–50 mm, widths 1,250–3,000 mm, coil weights up to 25 MT.
NACE MR0175/MR0103, HIC, IBR, 3.1/3.2 MTCs, and third-party approvals.
It varies by thickness, certification, and order size. Contact us for updated prices.
Because we deliver audit-ready, globally certified coils with export credibility and timely supply.
Don’t let project deadlines slip or face audit failures due to uncertified plates.
With Navgraha Steels INC, Mumbai, you receive:
Call to Action: Request your price & datasheet today. Secure SA516 Gr 485 Plates that guarantee compliance, safety, and on-time delivery.
