40CrMnNiMo8 6 4 / 1.2738 (P20+Ni) Pre-Hardened Plastic Mould Steel Forgings for Large Moulds and Cavities Blocks, Bases and Bolsters Jiangsu Liangyi

Product Description

Jiangsu Liangyi is an ISO 9001:2015-certified forging manufacturer in China supplying 40CrMnNiMo8-6-4 / W.Nr. 1.2738 (P20+Ni) open-die forgings and mould blocks to plastic-injection-mould, tooling and automotive projects in India and worldwide, to DIN 17350 / ISO 4957.

Why 40CrMnNiMo8-6-4 / 1.2738 for Indian mould-making projects

1.2738 (P20+Ni) is a nickel-modified pre-hardened plastic-mould steel giving uniform hardness through large sections (to ~600 mm), mirror polishability and machine-to-finished-cavity convenience (no post-machining heat treatment). For India's plastic-mould, tooling and automotive sectors, it suits large mould blocks, cavities, cores, bases and bolsters especially where high-gloss surfaces are needed.

Documented capability

Plastic-injection moulds: large mould blocks/plates, cavity and core blocks.

Mould bases/frames: bases, bolsters, die holders, frame components.

Hot-runner/automotive: hot-runner-system blocks, automotive/electronics mould components.

General tooling: forged blocks, plates, custom mould forgings.

Product range for Indian buyers

Forged large plastic-injection mould blocks and plates; mould bases and bolsters; cavity and core blocks; die-holder and mould-frame components; hot-runner-system blocks; round/square/flat/rectangular forged blocks.

Material data

Chemistry (1.2738, wt%): C 0.350.45, Si 0.200.40, Mn 1.301.60, Cr 1.802.10, Mo 0.150.25, Ni 0.901.20. Pre-hardened Q&T ~2832 HRC (HH variant available); through-hardenable to ~600 mm. Same grade across 40CrMnNiMo8-6-4 / 1.2738 / P20+Ni.

Standards & quality

Manufactured to DIN 17350 / ISO 4957; EAF + LF/VD melting (ESR available); 100% UT (mould-grade); hardness survey; polishability 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.