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SA516 Gr 485 Sheets – Boiler & Pressure Vessel Steel by Navgraha Steels INC, Mumbai

One wrong sheet grade can mean audit rejection, sudden leaks, or costly shutdowns in boiler and refinery projects. That’s why EPCs and refineries worldwide insist on SA516 Gr 485 Sheets.

At Navgraha Steels INC, Mumbai – Maharashtra – India, we supply globally certified SA516 Gr 485 Boiler Quality Sheets that:

  • Withstand high temperature & pressure environments
  • Meet ASME, ASTM, IBR & NACE compliance
  • Pass third-party inspections (Lloyds, TÜV, ABS, DNV, SGS)

You don’t just buy sheets — you buy compliance, safety, and reliability.

Table of Contents

What Are SA516 Gr 485 Sheets?

SA516 Gr 485 is a pressure vessel quality steel sheet, engineered for strength, durability, and crack resistance in critical industrial environments

Applications include:

  1. Boilers & Heat Exchangers
  2. Storage Tanks & Reactors
  3. Petrochemical Refineries & Power Plants
  4. Offshore Oil & Gas Projects

These sheets are chosen when toughness, weldability, and sour service safety cannot be compromised.

Why EPCs, Refineries & Power Plants Depend on SA516 Gr 485 Sheets

Procurement managers often ask:

  • “Will these sheets pass IBR and NACE audits?”
  • “Can they handle sour gas exposure without cracking?”
  • “Are the certifications genuine for export projects?”

With Navgraha Steels INC, you get:

  • IBR approved sheets for Indian boilers
  • NACE & HIC certified supply for sour service
  • 3.1 / 3.2 MTC + third-party inspections for global acceptance

That’s why leading EPC contractors, refineries, and offshore plants choose Navgraha for SA516 Gr 485 sheets.

Mechanical Properties of SA516 Gr 485 Sheets

Property Typical Value Why It Matters
Tensile Strength 590–770 MPa Handles high-pressure & high-temp operations
Yield Strength Min 275 MPa Prevents deformation under stress
Elongation 17–21% Ensures ductility during fabrication
Impact Resistance Up to -20°C Suitable for low-temp refinery & offshore use
Hardness (BHN) ≤ 250 Weldability + machinability assurance

These properties ensure long-lasting performance and safety under extreme conditions.

Chemical Composition – Low Sulfur & Phosphorus for Crack Resistance

Element % Range Why Controlled?
Carbon (C) ≤ 0.21 Balance strength with weldability
Manganese (Mn) 0.55–1.20 Improves toughness & ductility
Phosphorus (P) ≤ 0.015 Prevents brittle fracture
Sulfur (S) ≤ 0.008 Reduces hydrogen cracking risk
Silicon (Si) 0.13–0.45 Provides stability at high temperature

Ultra-low P & S levels make these sheets audit-ready and refinery-approved

International Standards & Equivalent Grades of SA516 Gr 485 Sheets

Our sheets meet strict global boiler & pressure vessel standards, ensuring worldwide acceptability:

  1. ASTM A516 / ASME SA516 Gr 485 (USA)
  2. EN 10028 P355NH / P355GH (Europe)
  3. IS 2002 Class 2 (India)
  4. BS 1501-224-490B (UK)

With IBR, NACE, and HIC certifications, SA516 Gr 485 Sheets from Navgraha Steels INC are accepted in refinery audits and EPC projects worldwide.

Thickness Range, Dimensions & Stock Availability

We supply SA516 Gr 485 Sheets in a wide range of dimensions to meet diverse project needs:

  1. Thickness: 6 mm – 50 mm
  2. Width: up to 2500 mm
  3. Length: up to 12,000 mm (cut-to-size supply available)
  4. Stock: Ex-stock for urgent shutdowns, mill fresh for bulk EPC contracts

Buyer Tip: Ordering cut-to-length sheets reduces wastage and ensures faster fabrication timelines

Heat Treatment Options – Normalized, Quenched & Tempered Sheets

Our sheets are available in different heat treatment conditions depending on project requirements:

  • Normalized (N): Standard supply for boilers & pressure vessels
  • Quenched & Tempered (Q+T): For offshore rigs, high-pressure vessels, and demanding refinery service
  • As Rolled (AR): For less critical, low-pressure industrial use

Every sheet is supplied with EN 10204 3.1 / 3.2 Mill Test Certificates for traceability and audit compliance.

Welding & Fabrication Performance – Ensuring Safety During Construction

Project engineers ask: “Will these sheets perform reliably during fabrication?”

With Navgraha Steels INC’s SA516 Gr 485 Sheets, you get:

  • Excellent weldability with SMAW, SAW, GTAW, GMAW
  • Good bendability & machinability → reduces fabrication risk
  • High impact strength at low temperatures → safe for offshore and refinery use

That means fewer rejections, faster turnaround, and lower on-site fabrication costs

Why Choose Navgraha Steels INC – Mumbai’s Trusted Supplier & Exporter

When you partner with us, you don’t just get steel — you get compliance and confidence.

  1. IBR, NACE, and HIC certified sheets
  2. Seaworthy export packaging → edge-protected, strapped, shrink-wrapped
  3. Global export network → GCC, Africa, Southeast Asia, Europe
  4. Third-party inspections (Lloyds, TÜV, DNV, ABS, SGS)
  5. Ex-stock supply for shutdown projects + mill fresh for EPC bulk orders

With Navgraha Steels INC, you get audit-ready, globally certified sheets delivered on time.

Popular Variants – IBR Approved, NACE Certified & Third-Party Tested SA516 Gr 485 Sheets

We supply all critical variants demanded by EPCs, refineries, and power plants:

Whatever the requirement, Navgraha delivers sheets that pass inspections and keep projects on schedule.

Export Reach – Supplying SA516 Gr 485 Sheets to Global Markets

From Mumbai’s Nhava Sheva Port, Navgraha Steels INC supplies audit-ready SA516 Gr 485 Sheets across the globe:

  • Middle East & GCC: Saudi Arabia, UAE, Oman, Qatar → refinery & EPC contracts
  • Africa: Nigeria, South Africa, Egypt → oil, gas & power industries
  • Asia-Pacific: Vietnam, Indonesia, Malaysia → boilers & petrochemical plants
  • Europe & UK: Pressure vessel & chemical industry demand → 3.2 certified supply

Export Packaging: Wooden pallets, edge protectors, coil banding & seaworthy wrapping → sheets arrive intact and inspection-ready

Buyer’s Guide – How to Select the Right SA516 Gr 485 Sheet

Before finalizing your order, check these essentials:

  1. Application Fit: Boilers, pressure vessels, petrochemicals, offshore rigs
  2. Dimensions: 6–50 mm thickness, widths up to 2500 mm, cut-to-length supply
  3. Certifications Needed: IBR, NACE, HIC tested, EN 10204 3.1/3.2
  4. Heat Treatment: Normalized for boilers, Q+T for offshore & high-pressure service
  5. Delivery Timelines: Ex-stock for urgent needs, mill fresh for EPC bulk orders

Navgraha Tip: Always choose dual-certified (IBR + NACE) sheets to avoid costly refinery audit rejections

Certifications & Test Reports That Guarantee Compliance

Every supply from Navgraha Steels INC comes with documentation that passes refinery & EPC audits worldwide:

  • IBR Approval for Indian boilers
  • NACE MR0175/MR0103 Compliance for sour service
  • HIC Test Reports for hydrogen cracking resistance
  • EN 10204 3.1 / 3.2 Mill Test Certificates
  • Third-Party Inspection Reports – Lloyds, TÜV, ABS, DNV, SGS

This means you receive globally accepted, traceable, and audit-proof sheets.

FAQs

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.

SA516 Gr 485 Sheet Price & Datasheet from Navgraha Steels INC Today

Don’t let uncertified supply put your project at risk.

With Navgraha Steels INC, Mumbai, you get:

  • Updated price per kg / ton for SA516 Gr 485 Sheets
  • Datasheets, chemical equivalence & size charts
  • Cut-to-size supply & bulk orders
  • Timely export delivery with full compliance documents

Call to Action: Request your price & datasheet today — secure SA516 Gr 485 Sheets that guarantee safety, compliance & on-time delivery.

Contact Our Team Today