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.