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In boiler and pressure vessel projects, the risk is high: a single uncertified or re-rolled coil can lead to shutdown delays, failed inspections, and even safety incidents. That’s why engineers, EPC contractors, and procurement managers worldwide choose Navgraha Steels INC, Mumbai, Maharashtra – India for SA516 Gr 70 coils.
We don’t just supply steel — we deliver compliance, safety, and on-time project execution.
SA516 Gr 70 is a carbon steel grade under ASTM A516 / ASME SA516 standards, specially designed for boiler quality and pressure vessel use.
In simple words: SA516 Gr 70 coils are the backbone of boilers, tanks, and refineries across the world.
Engineers know the real dangers of poor steel sourcing:
With Navgraha Steels INC’s SA516 Gr 70 coils, you are assured of:
That’s why our coils are trusted by refineries, power plants, and EPC companies worldwide.
| Property | Value (Typical) | Why It Matters |
|---|---|---|
| Tensile Strength | 485–620 MPa | Prevents rupture under high stress |
| Yield Strength | Min 260 MPa | Protects against permanent deformation |
| Elongation | 17–21% | Allows safe forming and bending |
| Impact Tested | -20°C (optional -46°C) | Suitable for low-temperature service |
| Hardness (BHN) | ≤ 250 | Balanced toughness and weldability |
These aren’t just numbers — they are the reason Navgraha Steels INC’s SA516 Gr 70 coils are cleared in audits and trusted in shutdown projects.
| Element | % Range |
|---|---|
| Carbon (C) | ≤ 0.27 |
| Manganese (Mn) | 0.79–1.30 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.035 |
| Silicon (Si) | 0.13–0.45 |
Balanced chemistry = less cracking, better weldability, and higher lifecycle performance.
With Navgraha Steels INC, you never risk a rejection — our coils are audit-ready and refinery-approved.
Buyers often worry: “Will this steel match my project’s code?”
Our SA516 Gr 70 coils are produced to the highest international standards, including:
With Navgraha Steels INC, you get globally accepted coils that clear inspections in any country.
Tired of suppliers who can’t confirm stock sizes? With us, you get:
From 6 mm thin coils for tanks to heavy-duty 50 mm coils for refineries, Navgraha Steels INC has ready stock in Mumbai.
Ordering the wrong condition can mean rejected welds. That’s why we supply:
Consulting Tip: Always request Normalized coils if your project is refinery or IBR-certified — it saves inspection trouble later.
Buyer worry: “Will the coil crack during forming or welding?”
Our coils guarantee smooth fabrication:
This makes your fabricators happy and your auditors satisfied.
Not all suppliers are equal. Many traders sell uncertified re-rolled stock. At Navgraha Steels INC, Mumbai, we deliver:
We don’t just sell coils — we secure your project against risk.
To save buyers time, we keep ready stock of:
Whatever your auditor or client demands, Navgraha Steels INC ensures you have it on record.
When buying for global projects, buyers often ask: “Can you really handle international documentation, seaworthy packing, and customs clearance?”
At Navgraha Steels INC, Mumbai, Maharashtra – India, export is our specialty. From Nhava Sheva Port, we supply SA516 Gr 70 coils to:
Every shipment is seaworthy packed — edge-protected, palletized, shrink-wrapped, and fumigated — to ensure safe arrival and zero rejections at inspection.
Choosing the wrong coil means audit rejections and wasted money. Here’s a simple consultant’s checklist to avoid mistakes:
Pro Tip: If your project is refinery-based, always order Normalized + EN 10204 3.2 certified coils — it clears audits without delay.
Buyer worry: “Are these certificates genuine or just stamped papers?”
With Navgraha Steels INC, every SA516 Gr 70 coil is delivered with:
This means your project inspectors get proof, not excuses.
Both are made of the same grade. Sheets usually come in thinner gauges and are often used for fabrication flexibility, while plates are thicker for heavy-duty applications.
Yes. At Navgraha Steels INC, we supply IBR-approved SA516 Gr 70 sheets suitable for Indian boiler applications.
We supply sheets from 6 mm to 150 mm thickness, with custom cut-to-size options.
The price varies by thickness, certification (NACE/HIC/IBR), and delivery terms. Contact us for the latest price list.
Absolutely. We supply NACE-compliant and HIC-tested sheets for sour service and refinery projects worldwide.
Yes. We export globally — GCC, Africa, SE Asia, Europe — with seaworthy packing and third-party inspection on request.
Because we combine ready stock, genuine certifications, global export experience, and consulting support, making us a safer choice than traders.
Every boiler shutdown costs lakhs. Don’t let uncertified or late delivery coils add to the loss.
With Navgraha Steels INC, Mumbai, you get:
Call to Action: Don’t gamble with deadlines. Request a quote now and secure SA516 Gr 70 coils from Mumbai’s most trusted exporter.
