Jiangsu Liangyi is a ISO 9001-certified stainless steel forging manufacturer in China, supplying UNS S41500 / ASTM A182 F6NM (X3CrNiMo13-4 / W.Nr. 1.4313) forged bars, seamless rolled rings, hollow forgings, discs and custom parts to hydropower, oil & gas, nuclear, pump, valve and marine projects in India and worldwide.
Why UNS S41500 / F6NM / 1.4313 for Indian hydro, oil & gas and power projects
This soft martensitic 13Cr-4Ni-Mo stainless UNS S41500 / ASTM A182 F6NM in the American system, X3CrNiMo13-4 / 1.4313 in EN has low carbon (0.050%) giving high strength, high impact toughness (KV >70 J in +QT650/+QT780) and good weldability. It is the standard material for hydro-turbine runners and wicket gates, pump casings and wellhead parts that must resist wet and high-pressure service. For India's large hydropower and pumped-storage build-out, refinery and frac duty, S41500 / F6NM / 1.4313 is a direct fit, certified to whichever system your spec uses.
Documented deliveries
Hydropower: Jiangsu Liangyi supplied open-die turbine runner discs and wicket gates in S41500 / 1.4313 to EN 10222-5 for the 500 MW impulse-turbine unit at the Zala hydropower station.
Oil & gas: +QT780 frac-pump fluid-end blocks and wellhead spool bodies for a Middle Eastern oilfield, stable under high pressure for 2+ years.
Nuclear: reactor coolant-pump casing shells and trunnions for a third-generation nuclear unit, full traceability, all tests passed.
Pumps: custom pump impellers to EN 10272:2007 for a European chemical-pump maker.
Valves: seamless rolled rings for valve bodies and seats for a US petrochemical plant.
Turbines: +QT900 forged disks and rolled guide rings for a gas-turbine manufacturer.
Suited to India's hydro, pumped-storage and marine duty
The grade's toughness, weldability and resistance to cavitation erosion and wet/seawater corrosion make UNS S41500 / F6NM / 1.4313 ideal for Francis and Pelton runners, wicket gates, guide vanes and pump casings in conventional hydro and the pumped-storage projects expanding across India, plus marine propeller shafts and pump/valve parts for coastal and offshore service.
Product range for Indian buyers
Round, square and flat bars; seamless rolled rings for turbines, pumps and valves; hollow forgings (hubs, sleeves, shells, hollow bars); discs, blocks and plates; custom shafts, spindles and valve stems. Delivery conditions +A, +QT650, +QT780 and +QT900 to your drawing.
Material data
Chemistry (EN 10088-3, wt%): Cr 12.014.0 Ni 3.54.5 Mo 0.30.7 Mn 1.5 Si 0.7 C 0.050 Fe bal. Properties: +QT780 Rm 780980 MPa, Re >620 MPa, A >15%, KV >70 J; +QT900 Rm 9001100 MPa, Re >800 MPa.
Standards & quality
Manufactured to UNS S41500 / ASTM A182 F6NM and EN 10088-3:2005, EN 10250-4:2000, EN 10222-5:2000, EN 10272:2007, EN 10028-7:2007; tested to ASTM A370, E10, E23, E45, E112 and AMS 2315G (delta-ferrite). Full MTRs per shipment; SGS / BV / TV inspection supported. UNS S41500 / F6NM and X3CrNiMo13-4 / 1.4313 are equivalent designations Jiangsu Liangyi certifies to your chosen system.
Commercial & logistics
Lead time 46 weeks (standard open-die); 812 weeks (custom heat treatment); worldwide export to Indian ports including Nhava Sheva, Mundra, Chennai, Kandla and Visakhapatnam. Clients include Siemens, GE, CNNC and PetroChina.
Enquire with Jiangsu Liangyi: sales@jnmtforgedparts.com +86-13585067993 Jiangyin, Jiangsu Province 214400, China.
Jiangsu Liangyi is an independent manufacturer; grade and standard names indicate the material and specifications supplied.




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Process : Forging / Open Die Forging / Precision Machining
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Minimum Order Quantity : 1 Piece
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