Home > Products > SA 516 Gr 70 HIC > SA516 Gr 70 HIC Coils
In refinery and boiler projects, the wrong steel choice can cause hydrogen-induced cracking (HIC) — leading to leaks, costly downtime, and failed inspections.
At Navgraha Steels INC, Mumbai – Maharashtra – India, we supply SA516 Gr 70 HIC Tested Coils that:
With Navgraha, you don’t just buy steel coils — you buy assurance against shutdowns and rejections.
SA516 Gr 70 HIC Coils are pressure vessel quality steel coils tested for HIC resistance, ensuring safety in sour service conditions.
They are widely used in:
For EPCs and refineries, HIC testing is not optional — it’s mandatory for compliance.
Every refinery project manager asks:
Navgraha Steels INC provides the solution:
That’s why EPCs, refineries, and offshore contractors source coils from us.
| Property | Typical Value | Why It Matters |
|---|---|---|
| Tensile Strength | 485–620 MPa | Handles pressure in boilers & vessels |
| Yield Strength | Min 260 MPa | Prevents deformation under load |
| Elongation | 17–21% | Flexibility during coil forming |
| Impact Resistance | Up to -20°C | Safe in low temp operations |
| Hardness (BHN) | ≤ 250 | Ensures weldability & machinability |
These properties make coils safe, reliable, and fabrication-friendly.
| Element | % Range | Why Controlled? |
|---|---|---|
| Carbon (C) | ≤ 0.21 | Maintains weldability & strength |
| Manganese (Mn) | 0.55–1.20 | Adds toughness & ductility |
| Phosphorus (P) | ≤ 0.010 | Prevents crack initiation |
| Sulfur (S) | ≤ 0.005 | Protects against H₂S attack |
| Silicon (Si) | 0.13–0.45 | Improves stability & performance |
Ultra-low P & S = true HIC resistance, protecting you from audit rejection and equipment failure.
Our coils are supplied to meet strict global sour service standards, including:
Every coil is HIC tested & NACE MR0175/MR0103 compliant, making it acceptable in refinery audits worldwide.
We maintain ready stock of coils in:
Buyer Tip: Ordering cut-to-length HIC coils reduces project delays and minimizes wastage.
To suit refinery and offshore needs, we offer coils in multiple heat treatment states:
Each coil is backed with mill certificates (3.1/3.2) for audit-ready compliance.
Procurement officers ask: “Will these coils hold during welding & forming?”
With Navgraha Steels INC’s HIC tested coils, you get:
Our coils ensure smoother fabrication, fewer rejections, and faster project execution.
We are not just stockists; we are compliance partners for refinery projects.
With Navgraha, you buy certainty, not just coils.
We supply every coil variant demanded by refineries & EPC contractors:
Whatever the refinery need, Navgraha delivers audit-proof coils on time.
With Mumbai’s Nhava Sheva Port as our hub, Navgraha Steels INC exports audit-ready HIC tested coils worldwide:
Seaworthy Packaging: Edge-protected, coil banded, wooden pallets → delivery intact, inspection-ready.
Before finalizing your order, confirm:
Navgraha Tip: Always insist on dual HIC + NACE certification to avoid last-minute refinery audit failures
Every SA516 Gr 70 HIC Coil we supply is audit-proof with:
With Navgraha, you get full traceability + global acceptance.
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 risk project rejection or coil failures with uncertified supply.
With Navgraha Steels INC, Mumbai, you receive:
Call to Action: Request your price & datasheet today. Get refinery-approved SA516 Gr 70 HIC Coils — delivered on time, with zero audit stress.
