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SA 387 Gr.91 Cl.2 Price List – Alloy Steel Plates, Sheets & Coils

SA 387 Grade 91 Class 2 (9% Cr – 1% Mo Alloy Steel) is a premium high-temperature boiler & pressure vessel steel used in ultra-supercritical power plants, refineries, and petrochemical reactors.
It provides excellent creep resistance, thermal stability, and oxidation resistance for service at temperatures up to 650°C.

At Navgraha Steels INC (Mumbai, Maharashtra, India), we supply SA 387 Gr.91 Cl.2 plates, sheets & coils from leading Indian & global mills: Sail, AMNS, JSPL, Evonith, Nippon Yakin, Outokumpu, VDM, ATI.

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SA 387 Gr.91 Cl.2 Price Table – INR & USD

Product Form & Synonyms Standards / Specs Finish / Condition Thickness / Width Industry Use Mill Origin Price (₹/kg) Price (USD/kg)
Plates (Chrome-Moly Boiler Plates) ASTM A387 Gr.91 Cl.2 / SA 387 Gr.91 HR, Normalized, Annealed, Tempered 6mm – 150mm, up to 3000mm width Boilers, Refineries, Power Plants Sail, AMNS, JSPL, Evonith, Nippon Yakin, Outokumpu, VDM, ATI ₹285 – ₹360 $3.70 – $4.60
Sheets (Alloy Steel Sheets) SA 387 Gr.91 Cl.2 HR/CR 3mm – 12mm Petrochemical, Thermal Power, Fabrication Sail, AMNS, JSPL, Evonith, Nippon Yakin, Outokumpu, VDM, ATI ₹295 – ₹370 $3.85 – $4.75
Coils (Chrome-Moly Steel Coils) SA 387 Gr.91 Cl.2 HR, P&O 2mm – 20mm, width 1000–2000mm Reactors, Heat Exchangers, Boilers Sail, AMNS, JSPL, Evonith, Nippon Yakin, Outokumpu, VDM, ATI ₹275 – ₹350 $3.60 – $4.50

Prices are indicative and vary by thickness, finish, mill origin & order size.

By Standards & Specifications (ASTM, ASME, Alloy Steel)

SA 387 Gr.91 Cl.2 is a 9Cr-1Mo-V alloy steel classified under:

  • ASTM A387 Grade 91 Class 2 → High-temperature pressure vessel steel.
  • ASME SA387 Gr.91 Cl.2 → Boiler and pressure vessel code compliant.
  • Equivalent Grades → EN 10028 X10CrMoVNb9-1 (Europe), BS 1501-622C (UK).

Engineered for ultra-supercritical boilers, steam pipes & refinery reactors where long-term creep strength is vital.

By Brand / Mill Origin – Indian & Global Mills

At Navgraha Steels INC, we source SA 387 Gr.91 Cl.2 plates, sheets & coils from:

  • Indian Mills → Sail, AMNS, JSPL, Evonith
  • Global Mills → Nippon Yakin (Japan), Outokumpu (Finland), VDM (Germany), ATI (USA)

Indian mills ensure cost efficiency, while global OEM mills supply EPC buyers with EN/CE-approved material.

By Testing & Quality Control – Boiler & EPC Standards

SA 387 Gr.91 Cl.2 undergoes strict testing for safety & durability:

  1. Tensile, Yield & Elongation Tests → Verifies mechanical strength.
  2. Creep Resistance & Stress Rupture Tests → Long-term high-temperature performance.
  3. Charpy Impact Test (V-Notch) → Verifies notch toughness.
  4. Hardness Testing (BHN) → Boiler-grade uniformity.
  5. Ultrasonic Testing (UT 100%) → Ensures defect-free plates.
  6. Third Party Inspection (TPI) → TÜV, Lloyd’s, BV, SGS.

All supplies include EN 10204 3.1/3.2 MTCs with complete traceability.

By Manufacturing & Finish – HR, Normalized, Tempered

  1. Hot Rolled (HR) Plates → Standard boiler-grade supply.
  2. Normalized & Tempered → For enhanced creep resistance & toughness.
  3. Annealed Condition → For improved fabrication & machining.
  4. Pickled & Oiled (P&O) → Coil form protection.

Power plants and EPC contractors always demand normalized + tempered condition for Grade 91.

By Thickness, Width & Supply Form

  • Plates: 6mm – 150mm thick, widths up to 3000mm, lengths up to 12m.
  • Sheets: 3mm – 12mm thickness, cut-to-size available.
  • Coils: 2mm – 20mm thick, widths 1000–2000mm.

Custom-cutting, edge preparation & beveling available for pressure vessel fabrication.

Industry Applications – Where SA 387 Gr.91 Cl.2 is Used

Due to its high chromium & molybdenum content, Gr.91 is chosen for:

  • Ultra-Supercritical Boilers & Steam Drums
  • Pressure Vessels & Heat Exchangers
  • Refineries & Petrochemical Reactors
  • Thermal & Nuclear Power Plants
  • Oil & Gas Processing Units
  • High-Temperature Piping & Headers

The benchmark alloy steel for EPC projects requiring strength + creep resistance at 600–650°C.

Export Pricing – India vs GCC vs Africa vs Europe

At Navgraha Steels INC (Mumbai, Maharashtra, India), we export SA 387 Gr.91 Cl.2 plates, sheets & coils worldwide:

  • India (Domestic Buyers) → ₹285 – ₹360 per kg with IBR compliance.
  • GCC (UAE, Saudi Arabia, Oman, Qatar, Kuwait) → Supplied for power plants, refineries & petrochemical EPC projects.
  • Africa (Nigeria, Kenya, South Africa, Egypt) → Demand for thermal power stations & boiler construction.
  • Europe & USA → EN 10028 X10CrMoVNb9-1 equivalents with CE-marked supply for nuclear & refinery projects.

All exports include seaworthy wooden pallets, steel-strapped bundles, HDPE wrapping, and Mill Test Certificates (MTCs).

How to Source SA 387 Gr.91 Cl.2 at Best Price

Procurement managers should evaluate carefully:

  1.  Mill Origin → Sail, AMNS, JSPL for domestic projects; Nippon Yakin, Outokumpu, VDM, ATI for EPC-grade imports.
  2. Heat Treatment → Confirm normalized + tempered condition for boiler use.
  3. Testing → Insist on UT 100%, creep resistance, hardness & Charpy impact tests.
  4. Certifications → EN 10204 3.1/3.2 MTCs essential for EPC acceptance.
  5. Cut-to-Size Supply → Saves welding joints & fabrication time.

Correct sourcing ensures zero rejection + EPC project compliance.

Certifications, Approvals & Test Reports Supplied

Every SA 387 Gr.91 Cl.2 supply comes with:

  •  Mill Test Certificate EN 10204 3.1 / 3.2
  •  IBR Approval (India)
  •  ISO 9001:2015 & CE Certification
  •  Ultrasonic Testing (UT 100%)
  •  Creep Resistance & Charpy Impact Test Reports
  •  Third Party Inspection (TÜV, Lloyd’s, BV, SGS)

Ensures full compliance for boilers, refineries, petrochemical & nuclear projects.

Why Buy from Navgraha Steels INC (Mumbai, Maharashtra, India)

  • Specialist in chrome-moly boiler & pressure vessel steel.
  • Supply from Sail, AMNS, JSPL, Evonith, Nippon Yakin, Outokumpu, VDM, ATI.
  • Transparent INR & USD price list.
  • Cut-to-size, beveled edges & export packaging.
  • 15+ years EPC supply experience with refineries & power plants.

We ensure on-time delivery + zero-rejection steel trusted by EPC contractors worldwide.

FAQ’s

$3.70 – $4.60 per kg FOB/CIF.

Sail, AMNS, JSPL, Evonith (India) + Nippon Yakin, Outokumpu, VDM, ATI (Global).

Ultra-supercritical boilers, refineries, petrochemical reactors, nuclear & thermal power plants.

EN 10204 3.1/3.2 MTCs, ISO 9001, CE mark, IBR approval, UT, Charpy, creep test & TPI.

Plates (6mm – 150mm), Sheets (3mm – 12mm), Coils (2mm – 20mm).

Yes, it is equivalent and widely used in EPC and nuclear projects.

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