24CrMo5 1.7258 Cr-Mo Heat-Resisting Forgings for Petrochemical, Energy Engineering Studs Bolts Valve Stems Shafts Rings

Product Description

Jiangsu Liangyi is an ISO 9001:2015-certified alloy-steel forging manufacturer in China supplying 24CrMo5 / W.Nr. 1.7258 (Cr-Mo heat-resisting Q&T steel) open-die forgings, seamless rolled rings, shafts and bolting to petrochemical, energy, automotive, construction and general-engineering projects in India and worldwide, to EN 10083-3 / EN 10269 / DIN 17240.

Why 24CrMo5 / 1.7258 for Indian petrochemical, energy and engineering projects

24CrMo5 is a Cr-Mo heat-resisting quench-and-temper steel with strength, toughness and superior hardenability for bolting and shafts to 400 C. For India's petrochemical, energy, automotive and engineering sectors, 1.7258 suits DIN 2510 studs, bolts, valve stems, couplings, gear and drive shafts and rings.

Documented capability

Bolting: DIN 2510 double-end studs, bolts, nuts, expansion-shank fasteners.

Petrochemical/energy: valve stems, couplings, wear rings, fittings, pressure-equipment parts.

Automotive/engineering: gear/drive/rotor shafts, spindles, couplings, structural forgings.

Product range for Indian buyers

Round/square/flat/rectangular bars, rods; gear/drive/rotor shafts; studs, bolts, nuts (DIN 2510); seamless rolled rings, gear rings, flanges; hubs, housings, sleeves, hollow bars; valve stems, couplings, wear rings; discs, blocks.

Material data

Chemistry (EN 10083-3, wt%): C 0.200.28, Si 0.40, Mn 0.500.80, Cr 0.901.20, Mo 0.200.35, Ni 0.60. +QT: Rp0.2 440 MPa, Rm 600750 MPa, A 18%, KV 60 J; service 400 C; harden 900950 C, temper 650710 C. Closely related to 25CrMo4 / 1.7218.

Standards & quality

Manufactured to EN 10083-3 / EN 10269 / DIN 17240; EAF + LF + VD melting; 100% UT; 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; grade names indicate the material supplied.