Home > Products > SA 516 Gr 70 NACE > SA516 Gr 70 NACE Plates
In refinery and petrochemical projects, the biggest risk is audit rejection due to missing NACE compliance.
One failed inspection can lead to:
At Navgraha Steels INC, Mumbai – Maharashtra – India, we supply SA516 Gr 70 NACE Certified Plates that:
With Navgraha, you don’t just buy steel — you secure audit-ready plates that safeguard your project timeline and credibility.
SA516 Gr 70 NACE Plates are carbon steel plates designed for boiler and pressure vessel use, with added compliance to NACE MR0175 / MR0103 standards.
This makes them suitable for:
In short, NACE-certified plates are mandatory for sour service environments where ordinary SA516 Gr 70 plates would fail.
Procurement managers face constant worries:
Navgraha’s NACE plates solve it all:
That’s why global EPC contractors trust Navgraha Steels INC’s SA516 Gr 70 NACE plates.
| Property | Typical Value | Why It Matters |
|---|---|---|
| Tensile Strength | 485–620 MPa | Withstands refinery & boiler pressures |
| Yield Strength | Min 260 MPa | Ensures load-bearing reliability |
| Elongation | 17–21% | Provides safety during bending & forming |
| Impact Resistance | Up to -20°C | Prevents brittle failure in low temps |
| Hardness (BHN) | ≤ 250 | Maintains weldability & machinability |
These properties make them ideal for sour service, high-pressure vessels, and refinery boilers.
| Element | % Range | Why Controlled? |
|---|---|---|
| Carbon (C) | ≤ 0.21 | Prevents brittleness, improves weldability |
| Manganese (Mn) | 0.55–1.20 | Adds strength while keeping toughness |
| Phosphorus (P) | ≤ 0.020 | Extra low → avoids cracking under H₂S |
| Sulfur (S) | ≤ 0.010 | Extra low → resists sulfide stress corrosion |
| Silicon (Si) | 0.13–0.45 | Provides stability during fabrication |
NACE-compliant chemistry = lower P & S, which ensures resistance to sulfide stress cracking (SSC) in sour service.
Our SA516 Gr 70 NACE Certified Plates are manufactured and tested as per global codes, ensuring smooth approval across multiple regions:
With NACE certification, these plates are universally accepted in refinery, petrochemical, and offshore projects worldwide
At Navgraha Steels INC, Mumbai, we maintain ready stock of SA516 Gr 70 NACE Plates in:
Buyer Tip: For refinery shutdown projects, request cut-to-size NACE plates to save fabrication time.
Different service environments demand different heat treatments:
Most EPC and refinery auditors demand Normalized NACE plates for sour service applications.
A common worry for buyers: “Will the plate crack during welding or rolling?”
With Navgraha’s NACE-certified supply, you get:
That means fewer fabrication failures, lower repair costs, and on-time project completion.
We are not just stockists — we are compliance partners for EPC contractors and refineries.
With Navgraha, you get steel that passes every audit and arrives on time.
We supply the most demanded variants for refinery and offshore buyers
Whatever your compliance need, Navgraha Steels INC ensures the right variant is available.
From Mumbai’s Nhava Sheva Port, we export SA516 Gr 70 NACE-certified plates to
Packaging Excellence: Seaworthy wooden pallets, shrink wrapping, and edge protection → plates arrive ready for inspection
Before placing your order, ensure
Navgraha Tip: Always request NACE + HIC tested plates for refinery projects → prevents cracking and costly rejections
Every supply from Navgraha Steels INC is backed by:
With Navgraha, your steel is audit-proof, inspection-ready, and globally accepted.
NACE ensures resistance to sulfide stress cracking (SSC) in hydrogen sulfide service — mandatory for refinery and sour gas applications.
Yes, we supply IBR-certified plates for Indian boiler use.
Yes, our stock includes NACE + HIC tested plates for maximum reliability in refinery service
Thicknesses range from 6 mm to 100 mm, widths up to 3,000 mm, lengths up to 12,000 mm.
NACE MR0175/MR0103, HIC, IBR, 3.1/3.2 MTCs, and third-party inspection reports
Price depends on thickness, certification, and order volume. Contact us for the latest rate sheet.
Because we deliver NACE-certified, audit-ready plates with global export credibility, on time and fully approved.
Don’t let uncertified plates risk your refinery project.
With Navgraha Steels INC, Mumbai, you get:
Call to Action: Request your price list and datasheet today. Secure NACE-certified plates that pass every audit.
