21CrMoNiV4 7 W.Nr. 1.6981 Heat-Resistant Cr-Mo-Ni-V Steel Forgings for Turbine Components and High-Temp Bolting Studs, Rotors and Rings Jiangsu Liangyi

Product Description

Jiangsu Liangyi is an ISO 9001:2015-certified forging manufacturer in China supplying 21CrMoNiV4-7 / W.Nr. 1.6981 open-die forgings, turbine rotor shafts, seamless rolled rings and bars to turbine, power-generation and bolting projects in India and worldwide.

Why 21CrMoNiV4-7 / 1.6981 for Indian turbine and bolting projects

21CrMoNiV4-7 is a heat-resistant Cr-Mo-Ni-V steel for turbine construction and high-temperature bolting, giving creep resistance and stable elevated-temperature strength verified around 560 C. For India's power-generation, turbine and fastener sectors, 1.6981 suits high-temperature bolts and studs, turbine rotor and valve components, blades and seal rings.

Documented capability

High-temperature bolting: bolts, studs, double-headed studs, fasteners.

Steam/gas turbines: rotor shafts and components, blades, vanes, valve spindles/stems/rods.

Rings/sealing: guide rings, seal rings, labyrinth rings, packing/diaphragm and rotor end rings, casing rings.

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

Product range for Indian buyers

Forged high-temperature bolts, studs and fasteners; turbine rotor shafts and components; blades and vanes; valve spindles, stems and rods; guide/seal/labyrinth/packing rings; casing rings; round/square/flat/rectangular bars; discs, hubs, sleeves.

Material data

Chemistry (typical, wt%): C 0.170.25, Cr 1.001.50, Mo 0.500.70, Ni 0.501.00, V 0.200.35. Harden 900950 C, temper 680720 C; properties verified 560 C. Same grade as 21CrMoNiV4-7 / 1.6981.

Standards & quality

Manufactured to DIN 17240 / EN 10269; EAF/AOD/VOD melting (ESR available); 100% UT (EN 10228-3); full chemistry; elevated-temperature tensile testing 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.