Metal Materials for Your Next Project

Alliance Pipes & Fittings is a leading stockholder and exporter of Carbon Steel Plates ASME SA 537 Class 1, widely used in pressure vessels, gas storage spheres, oil & gas reactors, industrial boilers, and petrochemical plants. These impact tested plates offer excellent strength and notch toughness, especially in high-temperature environments.

Manufactured as per ASTM A537 Class 1 / ASME SA 537 Gr. 1 standards, these Boiler Quality Plates are normalized and used extensively in fabrication of pressure vessels and storage tanks requiring superior mechanical properties.

Pressure Vessel Steel Plates / Carbon Steel Plates ASME SA 537 Class 1 Plates are widely recognized for their excellent resistance to pressure, heat, and mechanical stress. Manufactured from carbon-manganese-silicon steel, these plates undergo heat treatment to improve their toughness, making them ideal for high-pressure vessels and boilers.

We supply IBR-approved SA 537 Gr. 1 carbon steel plates with complete mill test certificates (MTC) and third-party inspection reports. All plates are available in custom widths, lengths, and thicknesses, cut to size or as per drawing.

As the largest stockist of ASME SA 537 Class 1 plates in Mumbai, India, we ensure fast delivery and competitive prices for local and global buyers.

Our inventory of Pressure Vessel Steel Plates and Carbon Steel Plates ASME SA 537 Class 1 offers flexibility to meet a variety of industrial needs:

• Thickness Range: 6mm to 150mm
• Width Range: 1500mm to 3500mm
• Length Range: Up to 12 meters, with custom sizes available on request.
• Surface Finish: Hot rolled, shot blasted, or primer-coated finishes.

Alliance Pipes & Fittings proudly sources its Pressure Vessel Steel Plates and Carbon Steel Plates ASME SA 537 Class 1 from globally recognized manufacturers to ensure consistent quality, traceability, and compliance with international standards. We maintain stock from industry-leading mills such as Jindal Steel & Power Ltd. (JSPL) and Arcelor Mittal Nippon Steel India Ltd. (AMNS).

These trusted manufacturers supply us with ASME SA 537 Gr. 1 plates that are impact tested, IBR approved, and manufactured using advanced steelmaking processes to meet the demanding requirements of pressure vessels, boilers, gas tanks, and petrochemical applications. Our customers benefit from mill test certificates (MTC), heat number traceability, and third-party inspections as standard.

Whether you are searching for a SA 537 Class 1 plate stockist in India or a reliable supplier of pressure vessel quality plates, Alliance Pipes & Fittings delivers certified material from the most trusted mills in the industry.

Material Specification – ASME SA 537 Class 1 / ASTM A 537 Class 1

Standard: ASME SA 537 / ASTM A 537
Grade: Class 1
Composition: Carbon-Manganese-Silicon Pressure Vessel Plate
Heat Treatment: Normalized

Chemical Composition of Pressure Vessel Steel Plates ASME SA 537 Class 1

• Carbon (C) = Max 0.24%
• Manganese (Mn) = 0.70% - 1.50%
• Silicon (Si) = 0.15% - 0.50%
• Phosphorus (P) = Max 0.035%
• Sulfur (S) = Max 0.035%

Mechanical Properties of Carbon Steel Plates ASME SA 537 Class 1

• Tensile Strength = 485 - 620 MPa
• Yield Strength = Min 260 MPa
• Elongation Min 22%
• Impact Resistance = High (tested at -50°C)

Delivery Condition: As Rolled / Normalized / Shot Blasted & Primer Coated (on request)

Impact Testing: Charpy V-Notch at -20°C (27 J min) – Impact Tested as per ASTM A370

Ultrasonic Testing: As per ASTM A578 Level B / C or EN 10160 S1E1 / S2E2 – On Request

Flatness Tolerance: As per ASTM A20 / EN 10029 Class N

Edge Condition: Mill Edge / Trimmed Edge

Surface Finish: Mill Finish / Shot Blasted & Primed

Test Certification: EN 10204 3.1 / 3.2 with Heat Number Co-Relation

Third Party Inspection: Lloyds, DNV, BV, TUV, ABS, SGS, Velosi – Available upon request

Alliance Pipes & Fittings ensures that every ASME SA 537 Class 1 Pressure Vessel Plate supplied is tested, certified, and traceable to meet the strict technical specifications of leading oil & gas consultants, EPC contractors, and refinery and power plant projects.
 

Ultrasonic Inspection: Detects internal flaws as per ASTM A578 Level B / EN 10160 S1E1 or S2E2

Hardness Testing: Ensures plates meet the required hardness range for pressure vessel applications

Impact Testing (CVN @ -20°C): Charpy V-notch test to assess toughness at sub-zero temperatures, as per ASTM A370

Chemical Composition Analysis: Verifies alloying elements and ensures compliance with ASME SA 537 / ASTM A 537 standards

Mechanical Property Validation: Confirms tensile strength, yield strength, elongation as per spec

Surface Quality Check: Ensures plates are free from cracks, lamination, scale, rust, and surface defects

Thickness & Dimension Tolerance: Controlled as per ASTM A20 / EN 10029, critical for pressure vessel design

Heat Number Traceability: Full traceability from plate to Mill Test Certificate (MTC)

IBR & NACE Compliance: Supplied plates conform to IBR regulations and NACE MR0103 / MR0175 for sour service

Marking & Colour Coding: As per project or EPC specifications, includes heat number, size, grade, and batch info

Packing & Logistics: Seaworthy packing in wooden pallets/bundles with protective film and strapping

Certification: Supplied with EN 10204 3.1 / 3.2 MTC, third-party inspection by Lloyds, BV, SGS, TUV

These stringent testing protocols ensure that our Carbon Steel Pressure Vessel Plates ASME SA 537 Class 1 perform reliably under extreme pressure, heat, and corrosive environments—making them the preferred choice for critical applications in:

• Offshore & Onshore Oil Rigs
• Petrochemical Refineries
• High-Pressure Boilers
• Gas Storage Spheres
• Reactors and Pressure Vessels

ASME SA 537 Class 1 Testing Requirements, Pressure Vessel Steel Plate Quality Control, Ultrasonic Tested Carbon Steel Plates, Impact Tested Plates for Boilers, IBR Certified Pressure Vessel Steel Supplier, ASTM A 537 Plate with 3.1 / 3.2 MTC, EPC Project Plate Requirements, NACE MR0175 Compliant Steel Plate, SA 537 Gr. 1 Plate for Oil & Gas Projects, Thickness & Dimensional Tolerance Checked Plates
 

Alliance Pipes & Fittings ensures that every ASME SA 537 Class 1 Pressure Vessel Plate supplied complies with the most stringent requirements laid out by:

• Oil & Gas Consultants: Shell, ADNOC, Saudi Aramco, ONGC, BPCL, IOCL, EIL
• EPC Companies: L&T Hydrocarbon, Petrofac, Technip Energies, McDermott, KBR, Samsung Engineering
• Refinery & Power Projects: Reliance Industries, Dangote Refinery, BHEL, NTPC, IOCL Paradip Refinery

• Pressure Vessel Steel Plates ASME SA 537 Class 1 supplied with full traceability, supported by Mill Test Certificates (MTC) as per EN 10204 3.1 or 3.2.
• Documentation of third-party inspections by agencies like TUV, SGS, and DNV, as required for Carbon Steel Plates ASME SA 537 Class 1.
• Tailored marking and packaging solutions for export-grade shipping of Pressure Vessel Steel Plates ASME SA 537 Class 1.

• Oil & Gas Refineries: Used in pressure vessels and separators, ensuring durability in harsh conditions for Pressure Vessel Steel Plates ASME SA 537 Class 1.
• Chemical Processing Plants: Fabrication of storage tanks and reactors with Carbon Steel Plates ASME SA 537 Class 1, ensuring structural integrity.
• Boilers and Heat Exchangers: ASME SA 537 Class 1 Plates ensure safety under high-pressure conditions in critical applications.
• Power Plants: Ideal for fabricating pressure-retaining components, ensuring reliability with Carbon Steel Plates ASME SA 537 Class 1.
• Marine Engineering: Suitable for pressure applications in ships and submarines, providing high-strength performance with Pressure Vessel Steel Plates ASME SA 537 Class 1.

• High Toughness: Ensures performance in sub-zero conditions, making Pressure Vessel Steel Plates ASME SA 537 Class 1 ideal for extreme environments.
• Superior Weldability: Suitable for various welding processes like MIG, TIG, and SAW, ensuring strong joints with Carbon Steel Plates ASME SA 537 Class 1.
• Stress Resistance: Handles moderate to high-pressure environments with ease, offering superior strength for Pressure Vessel Steel Plates ASME SA 537 Class 1.
• Durability: Enhanced lifespan, reducing replacement frequency, and providing reliable service in demanding applications of Carbon Steel Plates ASME SA 537 Class 1.

• Largest Inventory in Mumbai: Immediate availability of Pressure Vessel Steel Plates ASME SA 537 Class 1 in standard and custom dimensions.
• Global Reach: Exported to over 15 countries, including UAE, Qatar, and Saudi Arabia, ensuring reliable supply of Carbon Steel Plates ASME SA 537 Class 1 worldwide.
• Prime Quality Assurance: Plates are manufactured from certified and traceable materials, ensuring compliance with industry standards for ASME SA 537 Class 1.
• Custom Solutions: Cutting, shaping, and marking services tailored to your project requirements, providing precise specifications for Pressure Vessel Steel Plates ASME SA 537 Class 1.
• Expertise Since 2002: A trusted name in the steel industry for over two decades, delivering high-quality Carbon Steel Plates ASME SA 537 Class 1 for various applications.

Contact Alliance Pipes & Fittings for the most competitive pricing and high-quality Carbon Steel Plates designed to meet your industrial challenges!

☎ +91-22-66362328
☎ +91-22-67437709
📱 +91 91 5200 5400
📧 sales@alliancefittings.net

Inspection & Testing Checklist
Material: Carbon Steel Pressure Vessel Plate
Specification: ASME SA 537 Class 1 / ASTM A 537 Class 1

Supplier: Alliance Pipes & Fittings
Project: ___________________________
Client / EPC: _______________________
Plate Heat Number(s): _______________

#1. Visual Inspection (Surface defects, lamination, scale-free)
Standard / Requirement: ASTM A20 / SA 20
Result: ✅ / ❌
Remarks: ____________________

#2. Dimensional Inspection (Length, Width, Thickness)
Standard / Requirement: ASTM A20 / EN 10029
Result: ✅ / ❌
Remarks: ____________________

#3. Thickness Tolerance Check
Standard / Requirement: Class A / B Tolerance (ASTM A20)
Result: ✅ / ❌
Remarks: ____________________

#4. Heat Number Identification & Traceability
Standard / Requirement: Full Plate Traceability
Result: ✅ / ❌
Remarks: ____________________

#5. Ultrasonic Testing (UT)
Standard / Requirement: ASTM A578 Level B / EN 10160 S1E1 / S2E2
Result: ✅ / ❌
Remarks: ____________________

#6. Hardness Testing
Standard / Requirement: Client Spec / ASTM Requirement
Result: ✅ / ❌
Remarks: ____________________

#7. Chemical Composition Test
Standard / Requirement: ASTM A537 Cl.1 / EN 10028-6
Result: ✅ / ❌
Remarks: ____________________

#8. Mechanical Testing (Tensile, Yield, Elongation)
Standard / Requirement: ASTM A370 / ASME SA 537
Result: ✅ / ❌
Remarks: ____________________

#9. Charpy Impact Test (CVN @ -20°C or client-specified temp)
Standard / Requirement: ASTM A370 / EN 10045-1
Result: ✅ / ❌
Remarks: ____________________

#10. NACE MR0103 / MR0175 Compliance (if applicable)
Standard / Requirement: NACE Specified H₂S Service
Result: ✅ / ❌
Remarks: ____________________

#11. IBR Certification (if required)
Standard / Requirement: Indian Boiler Regulation
Result: ✅ / ❌
Remarks: ____________________

#12. Surface Finish Verification (as rolled / normalized + QT)
Standard / Requirement: Client Spec / Mill Finish
Result: ✅ / ❌
Remarks: ____________________

#13. Marking Verification (Grade, Size, Heat No., Logo, PO No.)
Standard / Requirement: Client Spec / ASTM A20
Result: ✅ / ❌
Remarks: ____________________

#14. Packing & Preservation (Seaworthy bundle / wooden crate)
Standard / Requirement: Project Requirement
Result: ✅ / ❌
Remarks: ____________________

#15. 3.1 / 3.2 Mill Test Certificate Verification
Standard / Requirement: EN 10204
Result: ✅ / ❌
Remarks: ____________________

#16. Third Party Inspection (if applicable)
Standard / Requirement: Lloyds / SGS / BV / TUV
Result: ✅ / ❌
Remarks: ____________________

Inspected By: _____________________
Date: ____________________________
Client / TPIA Approval: ____________

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