DIPTI METAL INDUSTRIES is a leading global UNS K91560 Manufaturer,UNS K91560 Exporter and UNS K91560 supplier of UNS K91560 (P91 / 1.4903) steel products, engineered for high-temperature service in power plants, refineries, and petrochemical industries. Our offerings include seamless pipes, forged bars, plates, fittings, and custom components for critical applications.

🧪 Chemical Composition (%)

Standard Equivalents:
EN: X10CrMoVNb9-1 (1.4903) | ASTM: A213 T91, A335 P91, A387 Gr. 91, A182 F91 | UNS: K91560

🛠️ Mechanical Properties

• Tensile Strength (Rm): 620–850 MPa
• Yield Strength (Re): ≥ 450 MPa
• Elongation (A): ≥ 20%
• Impact Resistance (KV @ +20°C): ≥ 40 J
• Modulus of Elasticity: 218 GPa
• Thermal Conductivity: 14 W/m·K
• Expansion Coefficient: 10.9 × 10⁻⁶ /K

🏭 Product Range

• Seamless Pipes: ½″–24″ NB (ASTM A335 P91, EN 10216-2)
• Boiler Tubes: OD 10–100 mm (ASTM A213 T91)
• Plates & Sheets: 6–100 mm (A387 Gr. 91)
• Bars & Rods: Ø10–Ø400 mm (A182 F91)
• Forgings: Rings, Shafts (custom machined)
• Pipe Fittings: ½″–24″ NB (ASME B16.9)
• Flanges: DN15–DN2000 (ASME B16.5 / DIN)
• Fasteners & Custom Machined Parts

🌍 Global Applications

• Steam pipelines, superheaters, reheaters
• Power plant headers and outlet chambers
• Boilers and pressure vessels (540–580°C)
• Supercritical & ultra-supercritical turbine components

Industry Sectors:

Power Generation, Oil & Gas, Petrochemicals, Refineries, Heat Exchangers

📦 Export & QA Capabilities

• EN 10204 3.1 / 3.2 MTC
• UT, RT, MPI, PMI & TPI from SGS, TUV, BV
• Seaworthy packing: PE end caps, crates, wrapped
• Shipping Ports: Nhava Sheva, Mundra, Chennai