Home > Products > SA 516 Gr 70 HIC > SA516 Gr 70 HIC Sheets

SA516 Gr 70 HIC Sheets – Sour Service Certified Supply by Navgraha Steels INC, Mumbai

In refinery and petrochemical procurement, choosing the wrong steel can shut down entire operations.
Without HIC-tested sheets, sour gas exposure often results in:

  • Hydrogen-Induced Cracking (HIC) → micro-cracks leading to leaks
  • Audit rejections → project delays and penalties
  • Loss of reliability in pressure vessels and boilers

At Navgraha Steels INC, Mumbai – Maharashtra – India, we supply SA516 Gr 70 HIC Tested Sheets that are:

  • Resistant to hydrogen-induced cracking in sour service
  • Certified to NACE MR0175 / MR0103 standards
  • Delivered with IBR & 3.2 approvals for global acceptance

With Navgraha, you don’t just buy steel sheets — you secure audit-proof supply that protects your project.

Table of Contents

What Are SA516 Gr 70 HIC Tested Sheets?

SA516 Gr 70 HIC Sheets are pressure vessel quality steel sheets tested against HIC (Hydrogen-Induced Cracking), making them essential for sour gas service.

They are used in:

  1. Refineries → storage tanks, separators, heat exchangers
  2. Petrochemical Plants → reactors, sour service vessels
  3. Industrial Boilers & Power Plants → exposed to aggressive environments
  4. Offshore Platforms → facing high H₂S and sour crude

These sheets are not optional — they are a compliance necessity for critical industries.

Why Refineries & EPC Contractors Depend on HIC-Resistant Sheets

Every procurement officer faces the same questions:

  • “Will these sheets pass refinery audits?”
  • “Can they withstand sour service without cracking?”
  • “Do I need to buy NACE + HIC separately?”

Navgraha Steels INC provides the solution:

  • HIC-tested sheets with NACE MR0175/MR0103 compliance
  • Low sulfur & phosphorus chemistry → prevents HIC initiation
  • Globally approved certifications → Lloyds, TÜV, DNV, ABS

That’s why leading EPC contractors and refineries trust Navgraha Steels INC for supply.

Mechanical Properties of SA516 Gr 70 HIC Sheets

Property Typical Value Why It Matters
Tensile Strength 485–620 MPa Handles high boiler & vessel pressures
Yield Strength Min 260 MPa Ensures safe load capacity
Elongation 17–21% Prevents brittle fractures during forming
Impact Resistance Up to -20°C Maintains toughness in low temps
Hardness (BHN) ≤ 250 Keeps weldability and machinability intact

These properties guarantee safe performance in sour service and high-pressure environments.

Chemical Composition – Low Sulfur & Phosphorus for Sour Gas Resistance

Element % Range Why Controlled?
Carbon (C) ≤ 0.21 Balances strength & weldability
Manganese (Mn) 0.55–1.20 Provides ductility & strength
Phosphorus (P) ≤ 0.010 Ultra-low to avoid HIC initiation
Sulfur (S) ≤ 0.005 Reduced for hydrogen sulfide resistance
Silicon (Si) 0.13–0.45 Improves structural stability

Ultra-low P & S chemistry = true HIC resistance → the difference between approval and rejection during audits.

Global Standards & Equivalent Grades of SA516 Gr 70 HIC Sheets

Our HIC-tested sheets comply with leading global refinery standards:

  1. ASTM A516 / ASME SA516 Gr 70 (USA)
  2. EN 10028 P355GH / P295GH (Europe)
  3. IS 2002 Class 2 (India)
  4. BS 1501-224-490B (UK)

With NACE MR0175/MR0103 compliance, our sheets are accepted by EPCs, refineries, and auditors worldwide.

Thickness Range, Sizes & Stock Availability

At Navgraha Steels INC, Mumbai, we maintain ready stock in:

  1. Thickness: 6 mm – 100 mm
  2. Widths: up to 3,000 mm
  3. Lengths: up to 12,000 mm
  4. Supply Form: Mill fresh sheets, cut-to-size supply, custom requirements

Buyer Tip: Ordering cut-to-size HIC sheets reduces fabrication waste and speeds up project timelines.

Heat Treatment Options – Normalized, Quenched & Tempered HIC Sheets

We supply HIC sheets with different treatments depending on project requirements:

  • Normalized (N): Standard choice for boilers and refineries
  • Quenched & Tempered (Q+T): Offshore and high-pressure sour gas applications
  • As Rolled (AR): Limited use for non-critical industries

Each sheet is delivered with test certificates proving compliance with project specifications.

Welding & Fabrication Performance – Sheets That Minimize Failures

Procurement risk: “Will these sheets crack during welding or forming?”

With Navgraha’s HIC-tested supply, you get:

  • Excellent weldability with SAW, SMAW, GTAW, GMAW processe
  • Superior machinability & bendability → fewer rejections in fabrication
  • Consistent toughness at low temperatures → safer for offshore sour service

This means fewer failures, faster project execution, and lower fabrication risk.

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

We’re more than a stockist — we’re your project compliance partner.

  1. HIC + NACE MR0175/MR0103 certified sheets
  2. IBR approval + 3.2 certified MTCs
  3. Export packaging with seaworthy pallets & edge protection
  4. Global export logistics via Nhava Sheva Port, Mumbai
  5. Third-party inspection support (Lloyds, ABS, DNV, TÜV, SGS)

With Navgraha, you get audit-ready sheets, delivered on schedule.

Popular Variants – NACE Certified, IBR Approved & Third-Party Tested HIC Sheets

We supply all major variants demanded by global buyers:

Whatever the requirement, Navgraha Steels INC supplies inspection-proof HIC sheets.

Export Reach – Delivering SA516 Gr 70 HIC Sheets Worldwide

From Mumbai’s Nhava Sheva Port, we export audit-ready HIC tested sheets across continents:

  • Middle East & GCC: Saudi Arabia, UAE, Oman, Qatar – refinery & petrochemical projects
  • Africa: Nigeria, Egypt, South Africa – oil, gas & power industries
  • Asia-Pacific: Vietnam, Indonesia, Malaysia – offshore & industrial boilers
  • Europe & UK: Refineries & chemical plants requiring 3.2 certified steel

Seaworthy Packaging: Shrink wrapping, edge protection, wooden pallets → sheets arrive inspection-ready.

Buyer’s Guide – How to Select the Right SA516 Gr 70 HIC Sheet

Before you place an order, confirm:

  1. Application Fit: refinery, boiler, offshore, petrochemical
  2. Dimensions: 6–100 mm thickness, cut-to-length available
  3. Certifications Required: HIC + NACE MR0175/MR0103, IBR, 3.1/3.2
  4. Heat Treatment: Normalized (standard), Q+T (offshore critical service)
  5. Delivery Schedule: Ex-stock for urgent needs, mill fresh for EPC projects

Navgraha Tip: Always opt for HIC + NACE dual-certified sheets to avoid last-minute refinery audit rejections.

Certifications & Test Reports That Protect Your Project

Every supply from Navgraha Steels INC comes with complete compliance:

  • HIC Test Reports (Hydrogen-Induced Cracking resistance)
  • NACE MR0175 / MR0103 Certification
  • IBR Approval for Indian boilers
  • EN 10204 3.1 / 3.2 MTCs
  • Third-Party Inspection Reports (Lloyds, ABS, DNV, TÜV, SGS)

Your sheets are globally approved and audit-proof.

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 70 HIC Sheet Price & Datasheet Today

Don’t risk project delays or audit failures with uncertified supply.

With Navgraha Steels INC, Mumbai, you get:

  • Updated price per kg / ton for HIC sheets
  • Datasheets & equivalence charts
  • Cut-to-size supply & bulk orders
  • On-time export delivery with full certifications

Call to Action: Request your price & datasheet today. Get refinery-approved SA516 Gr 70 HIC Sheets — delivered on time, every time.

Contact Our Team Today