Offshore Grades Manufacturer and Supplier in Kolkata, Delhi NCR

Here is a detailed description of offshore-grade manufacturers and suppliers in Kolkata and Delhi NCR, including grades, applications, dimensions, and mechanical properties in a structured table.

Offshore Grades Manufacturer and Supplier in Kolkata & Delhi NCR

Offshore-grade materials are engineered to meet the demanding conditions of marine and offshore environments. Manufacturers and suppliers in Kolkata and Delhi NCR specialize in providing materials that ensure durability, reliability, and superior performance for various offshore applications. These materials comply with international standards such as ASTM, API, EN, and ISO, ensuring high-quality production. Offshore Grades Manufacturer in Kolkata.

Table: Offshore Material Grades, Applications, Dimensions, and Mechanical Properties

Parameter	Details
Common Grades	– Structural Steel: S355G10+M/N, S420G2+M/N, S460G2+M/N – Shipbuilding Steel: ASTM A131 Grades AH36, DH36, EH36 – Pressure Vessel Steel: ASTM A516 Grade 70, API 2H Grade 50 – Corrosion-Resistant Steel: Duplex (UNS S31803), Super Duplex (UNS S32750) – Alloy Steel: AISI 4130.
Applications	– Offshore platforms and rigs – Shipbuilding and FPSO (Floating Production Storage and Offloading) – Subsea pipelines and pressure vessels – Marine cranes, structural beams, and bridges – Jack-up rigs and mooring systems.
Available Forms	– Plates, sheets, and coils – Pipes and tubes – Flanges and fittings – Beams, angles, and structural sections – Bolts, nuts, and fasteners.
Dimensions	– Plates: Thickness 6 mm to 200 mm, Widths up to 3,500 mm, Lengths up to 18,000 mm – Pipes: Outer diameter (OD) 0.5 inches to 48 inches – Structural Sections: Varying sizes of H-beams, I-beams, and channels (as per EN or ASTM standards).
Mechanical Properties	– Yield Strength: 250 MPa to 600 MPa – Tensile Strength: 490 MPa to 750 MPa – Elongation: 18%-25% (depending on grade) – Impact Strength: Designed to withstand low-temperature environments (-20°C to -50°C).
Corrosion Resistance	– Excellent resistance to seawater, chloride environments, and stress corrosion cracking. – Enhanced durability in sour service (H2S exposure) environments with duplex and super duplex grades.

Detailed Offshore Material Grades

Grade	Chemical Composition	Applications	Dimensions Available	Key Features
ASTM A516 Grade 70	C: ≤ 0.30%, Mn: 1.00-1.60%, Si: 0.15-0.40%	Pressure vessels, boilers, storage tanks	Plates: 6–200 mm thickness	High strength, good weldability, impact resistance.
API 2H Grade 50	High Mn, Low P and S	Offshore platforms, structural components	Plates: 8–200 mm thickness	Superior notch toughness at low temperatures.
S355G10+M/N	Mn: ≤ 1.60%, Si: ≤ 0.50%, P, S: ≤ 0.03%	Marine structures, cranes	Plates: 6–150 mm thickness	Improved corrosion resistance, excellent weldability.
UNS S31803 (Duplex)	Cr: 21-23%, Ni: 4.5-6.5%, Mo: 2.5-3.5%	Subsea pipelines, pressure vessels, flanges	Pipes: OD up to 24 inches	High strength, excellent corrosion resistance.
ASTM A131 AH36	C: ≤ 0.18%, Mn: 0.90-1.60%, Si: 0.10-0.50%	Shipbuilding and marine applications	Plates: 6–100 mm thickness	Enhanced performance in marine environments.
AISI 4130	Cr: 0.80-1.10%, Mo: 0.15-0.25%, C: 0.28-0.33%	Offshore drilling equipment and connectors	Tubes: OD 2 inches to 8 inches	High fatigue resistance and toughness.

Leading Manufacturers and Suppliers in Kolkata & Delhi NCR

Kolkata

Bharat Iron & Steel Company
Specializes in structural and pressure vessel-grade materials.
Tata Steel Authorized Distributors
Supplies a wide range of offshore and shipbuilding steel products.
Essar Steel Suppliers
Renowned for duplex and super duplex stainless steel grades.

Delhi NCR

Jindal Steel & Power Dealers
Offers structural sections and offshore-grade plates.
Mahavir Steel Industries
Supplies API and ASTM-standard materials.
Laxmi Steels & Alloys
Known for customized offshore-grade fittings and flanges.

These suppliers ensure that materials meet international certifications (ISO, API, ASTM, etc.) and cater to custom requirements.

Would you like further assistance with specific material properties, certifications, or supplier contacts?

Supply Cities:
Mumbai Ahmedabad, Amaravathi, Ambattur, Bangalore, Belgaum, Chennai, Chittoor, Coimbatore, Dindigul, Mysore, Nellore, Hyderabad, Kochi, Mangalore, Tirupur, Tuticorin, Madurai, Andhra Pradesh, Karnataka, Puducherry, Kerala, Tamil Nadu, Telangana, Visakhapatnam, Kochi, Kerala, Hubli-Dharwad, Karnataka, Ghaziabad Kolkata.

People Also Search For:
Offshore Grades, Offshore Grades Manufacturers, Offshore Grades Suppliers, Offshore Grades Stockists, Offshore Grades Dealers, Offshore Grades Distributors, Offshore Grades Wholesalers, Offshore Grades Traders, Offshore Grades Exporters, Offshore Grades Square Distributors, Offshore Grades Flat Bar, Offshore Grades Companies Near Me.

Showing all 8 results