AISI 304LN X2CrNiN18-10 1.4311 Nitrogen Strengthened Austenitic Stainless Forgings for Pressure and Cryogenic Service Flanges, Valve Bodies and Fittings and Jiangsu Liangyi

Product Description

Jiangsu Liangyi is an ISO 9001:2015-certified forging manufacturer in China supplying AISI 304LN / X2CrNiN18-10 (1.4311) open-die forgings, seamless rolled rings, flanges, valve bodies and fittings to pressure-vessel, cryogenic, LNG and process projects in India and worldwide, to EN 10222-5 and ASTM A182 F304LN.

Why AISI 304LN / 1.4311 for Indian pressure and cryogenic projects

304LN is a nitrogen-strengthened low-carbon 18-8 austenitic stainless with higher yield and tensile strength than 304L, as-welded corrosion resistance and outstanding cryogenic toughness. For India's pressure-equipment, cryogenic, LNG and process sectors, it suits higher-strength flanges, valve bodies, fittings and cryogenic-service forgings.

Documented capability

Pressure vessels/process: higher-strength pressure-vessel flanges, valve bodies, fittings, process forgings.

Cryogenic/LNG: cryogenic and LNG flanges, valve bodies, fittings.

Structural/general: structural stainless forgings needing higher strength than 304L.

General: bars, discs, hubs, sleeves, tube sheets, custom forgings.

Product range for Indian buyers

Forged pressure-vessel and cryogenic flanges (weld-neck, slip-on, blind); valve bodies, stems, seat rings; pump and fitting components; pipe fittings, tees, reducers; LNG/cryogenic-service forgings; tube sheets; nozzles, discs, hubs, sleeves.

Material data

Chemistry (EN 10088 / 1.4311, wt%): C 0.030, Cr 17.5019.50, Ni 8.5011.50, N 0.120.22. Solution anneal ~1,0401,100 C + rapid cool; not hardenable; as-welded. Same alloy across 304LN / X2CrNiN18-10 / 1.4311 / UNS S30453.

Standards & quality

Manufactured to EN 10222-5, EN 10088-3, ASTM A182 F304LN, ASME SB; EAF + AOD/VOD melting; 100% UT + PT; ASTM A262 IGC / cryogenic impact on request; EN 10204-3.1 / 3.2.

Commercial & logistics

Lead time by project; FOB Shanghai / CIF to Nhava Sheva, Mundra, Chennai, Kandla, Visakhapatnam.

Enquire with Jiangsu Liangyi: sales@jnmtforgedparts.com +86-13585067993 Jiangyin, Jiangsu, China.

Jiangsu Liangyi is an independent manufacturer; designations indicate the material supplied.