AISI 403Cb Niobium Modified 12% Cr Martensitic Turbine Blade Steel Forgings Blades, Vanes and Bars Jiangsu Liangyi

Product Description

Jiangsu Liangyi is an ISO 9001:2015-certified forging manufacturer in China supplying AISI 403Cb open-die forgings and bars to steam-turbine, gas-turbine and compressor-blade projects in India and worldwide, to ASTM A479 / A565.

Why AISI 403Cb for Indian turbine-blade projects

403Cb is a niobium-modified, low-silicon 12% Cr martensitic steel purpose-built for turbine blade forgings finer grain, reduced delta-ferrite risk and better high-temperature toughness than standard 403. For India's power-generation and industrial-turbine sectors, 403Cb suits steam- and gas-turbine blades, vanes and compressor blades.

Documented capability

Steam turbines: blades and vanes for LP/HP/IP stages.

Gas turbines/industrial turbines: blades and vanes.

Compressor/rotating equipment: compressor blades, blade blanks, preforms.

General: discs, hubs, sleeves, custom forgings.

Product range for Indian buyers

Forged steam- and gas-turbine blades and vanes; compressor blades; blade blanks and preforms; round and step bars; discs, hubs, sleeves.

Material data

Chemistry (wt%): C 0.15, Si 0.30 (low), Mn 1.00, Cr 11.5013.00, Ni 0.60, Nb (Cb) added. Quench + temper; refined grain structure vs. standard 403.

Standards & quality

Manufactured to ASTM A479 / A565 and GE-type turbine-blade-steel requirements; controlled low-silicon melting with Nb addition; full chemistry (Si/Nb verification); grain-size check; mechanical testing per condition; 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.