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SA 387 Gr.11 Cl.2 Coils Supplier & Exporter in India – Navgraha Steels INC (Mumbai, Maharashtra)

When your project runs on boilers, refineries, or high-pressure vessels, a single wrong shipment can cost you millions in shutdown losses. That’s why sourcing SA 387 Gr.11 Cl.2 Chrome Moly Alloy Steel Coils requires more than a vendor — it needs a partner who understands urgency, compliance, and precision. At Navgraha Steels INC, we deliver certified alloy steel coils with guaranteed traceability, timely dispatch, and export-ready packaging.

Table of Contents

What Are SA 387 Gr.11 Cl.2 Coils and Why Do Refineries & Power Plants Depend on Them?

SA 387 Grade 11 Class 2 is a Chrome-Moly alloy steel, engineered under ASTM A387/ASME SA 387 standards, specifically for elevated temperature service. In coil form, it gives buyers:

  • Flexibility in fabrication (cut-to-length, slit, or roll)
  • High creep resistance under 500–600°C
  • Weldability with PWHT compatibility
  • IBR/PED-approved reliability for boiler & refinery projects

👉 In short: SA 387 Gr.11 Cl.2 coils are the backbone of pressure vessel safety.

The Real Challenges Buyers Face When Procuring SA 387 Gr.11 Cl.2 Alloy Steel Coils

Procurement isn’t just about buying steel — it’s about avoiding risks:

  • Wrong grade supplied (Cl.1 instead of Cl.2 → rejection at site)
  •  Lack of certification (no EN 10204 3.1/3.2, IBR, PED)
  •  Stock unavailability in critical coil widths/thicknesses
  •  Late dispatches causing project delays and penalties
  • Opaque pricing with hidden logistics costs

At Navgraha Steels INC, we remove these risks by supplying ready stock coils in Mumbai, certified to global standards, with clear pricing and proven export track record.

Applications of SA 387 Gr.11 Cl.2 Coils Across Industries

Our coils are used where strength, compliance, and reliability are non-negotiable:

  •  Boilers & Superheaters – consistent creep resistance
  • Refineries & Petrochemicals – heaters, pressure vessels, exchangers
  • Thermal & Nuclear Power Plants – safe under extreme heat cycles
  • EPC & Process Projects – storage tanks, fabrication, turnkey projects

👉 Wherever high heat meets high pressure, SA 387 Gr.11 Cl.2 coils are the engineer’s trusted choice.

Mechanical Properties of SA 387 Gr.11 Cl.2 Alloy Steel Coils

SA 387 Gr.11 Cl.2 coils are engineered for strength, heat resistance, and weldability:

  1. Yield Strength: 240 – 310 MPa
  2. Tensile Strength: 415 – 585 MPa
  3. Elongation: 18–22% (flexible for coil forming & fabrication)
  4. Impact Strength: Stable at elevated service temperatures
  5. Brinell Hardness: 170 – 220 HB

👉 Buyer benefit: Guarantees longer service life and lower maintenance downtime in boilers, refineries, and power plants.

Chemical Composition of ASTM A387 Gr.11 Cl.2 Coils

The coil chemistry provides oxidation resistance and creep strength:

Element Content (%)
Carbon (C) 0.05 – 0.20
Manganese (Mn) 0.30 – 0.60
Silicon (Si) 0.50 – 1.00
Chromium (Cr) 1.00 – 1.50
Molybdenum (Mo) 0.45 – 0.65
Phosphorus (P) ≤ 0.035
Sulphur (S) ≤ 0.035

👉 Buyer benefit: Chromium improves resistance to scaling/oxidation, while Molybdenum ensures creep resistance at high temperature.

Standards, Certifications & Equivalent Grades of SA 387 Gr.11 Cl.2 Coils

  • Standards: ASTM A387 / ASME SA 387
  •  Equivalent Grades: EN 10028-2 13CrMo4-5, DIN 13CrMo44, BS 622-515B
  • Certifications: EN 10204 3.1/3.2, IBR Approved, PED/CE Certified
  • Third-Party Inspections: SGS, TUV, BV, Lloyd’s Register

👉 Buyer benefit: Fully compliant coils, accepted in EPC, refinery, and global power projects.

Available Coil Sizes, Thickness & Processing Options

We supply coils in standard & custom specifications:

  1. Thickness: 2 mm – 20 mm
  2. Width: 1000 mm – 2000 mm
  3. Coil Weight: Up to 25 MT per coil
  4. Processing Options: Slitting, cut-to-length, shearing, CNC machining

👉 Buyer benefit: Flexible coil supply saves time, money, and fabrication effort.

Heat Treatment, Weldability & Durability of Chrome Moly Coils

  1. Condition Supplied: Normalized + Tempered (N+T)
  2. Weldability: Excellent, provided preheating and PWHT are applied
  3. Durability: Stable in continuous high-temperature service (500–600°C)

👉 Buyer benefit: Ensures safety and compliance for long-term refinery and boiler operations.

Value-Added Services by Navgraha Steels INC for SA 387 Gr.11 Cl.2 Coils

We don’t just supply coils — we supply project-ready solutions:

  • Slitting & Decoiling
  • Cut-to-length sheets & strips
  • CNC machining & fabrication support
  • Surface protection & primer coating
  • Export-ready seaworthy packing

👉 Buyer benefit: Buyers get faster project execution, lower wastage, and smoother fabrication.

Why Global Buyers Trust Navgraha Steels INC for SA 387 Gr.11 Cl.2 Coils

At Navgraha Steels INC, Mumbai, we know procurement delays or uncertified coils can stall refinery projects and power plant operations. That’s why buyers rely on us for:

  • Global Export Reach – Regular dispatches to GCC, Africa, Europe & Southeast Asia.
  • Trusted Certifications – EN 10204 3.1/3.2, IBR, PED, CE with third-party inspections.
  • On-Time Supply – Ready stock in Mumbai, urgent coil dispatch available.
  • Transparent Pricing – Competitive rates with no hidden costs.
  • EPC-Approved Partner – Proven supplier for refinery shutdowns & critical projects.

👉 With Navgraha, you don’t just buy coils — you buy reliability, compliance, and peace of mind.

Popular Variants & Related Alloy Steel Grades We Also Supply

  • SA 387 Gr.11 Cl.1 Coils
  • SA 387 Gr.22 Cl.2 Coils
  • ASTM A204 Alloy Steel Coils
  • IS 2002 Boiler Quality Coils

👉 Buyers can source all Chrome-Moly grades from one supplier, saving procurement time.

Export Packaging, Logistics & Safe Delivery

We ensure coils arrive intact, certified, and project-ready:

  • 📦 Seaworthy Packing – Strapped coils with edge protectors & waterproof wrapping
  • 🚢 Shipping – Containerized or break-bulk via JNPT/Nhava Sheva
  • Air Freight – For shutdown-critical, urgent deliveries
  • 🛡 Protection – Rust-preventive coating and export-compliant labeling

👉 Buyer benefit: No risk of damage, corrosion, or rejection at customs.

How to Select the Right SA 387 Gr.11 Cl.2 Coil Supplier

Before you finalize a supplier, ask:

  1. Do they provide IBR, PED, and EN 10204 certified coils?
  2. Do they maintain ready coil stock in Mumbai for urgent supply?
  3. Can they deliver cut-to-length, slitting, and fabrication support?
  4. Do they have export experience with EPC projects?
  5. Is pricing clear and project-friendly?

👉 With Navgraha Steels INC, the answer is “YES” to all — making us a consulting partner, not just a vendor.

FAQ’s

Cl.2 coils offer higher tensile/yield strength and better temperature resistance than Cl.1.

Yes, we supply IBR-certified coils for boiler & pressure vessel use in India.

Yes, with EN 10204 3.1/3.2, PED, CE, and third-party inspection certificates.

It depends on thickness, width, and mill origin. Contact us for live quotes.

We supply coils from 2 mm to 20 mm thickness and 1000–2000 mm width.

Request SA 387 Gr.11 Cl.2 Coils Price, Datasheet & MTC Today

Don’t let uncertified material or shipping delays risk your project.
📞 Call our Mumbai office now for immediate pricing.
Request a datasheet & sample Mill Test Certificate (MTC).
🚢 Get export-ready documentation and global delivery support.

👉 With Navgraha Steels INC, you secure more than alloy steel — you secure trust, time, and project safety.

Contact Our Team Today