Jiangsu Liangyi is an ISO 9001:2015-certified alloy-steel forging manufacturer in China supplying 21MnCr5 / W.Nr. 1.2162 open-die forgings, seamless rolled rings, bars and shafts to cold-forming tooling, automotive, plastic-mould and hydraulic projects in India and worldwide, to DIN EN 10084.
Why 21MnCr5 / 1.2162 for Indian tooling, automotive and mould projects
21MnCr5 is a Mn-Cr case-hardening steel that develops a stable ~60 HRC carburised surface over a tough core, giving high wear resistance with impact resistance. For India's tooling, fastener, gear, automotive and plastic-mould sectors, 1.2162 suits cold-forming dies and punches, plastic-mould blocks, and transmission shafts and gear blanks.
Documented capability
Cold-forming tooling: die blocks, punch shafts, dies, stamping/burnishing tools (used by fastener and gear makers).
Plastic moulds: mould blocks, plates and inserts for thermoplastics and thermosets.
Automotive: transmission shafts, gear blanks, bushings, sleeves, shift forks, steering parts.
Hydraulics: sleeves, valve bodies, piston rods, spool shafts.
Product range for Indian buyers
Round/square/flat/rectangular bars; die blocks, punch shafts, mould blocks/plates/inserts; transmission shafts, gear blanks, bushings, sleeves; piston rods, spool shafts, hollow bars; seamless rolled rings; custom forgings.
Material data
Chemistry (typical, wt%): C 0.180.24, Si 0.40, Mn 1.101.40, Cr 1.001.30. Soft anneal 670710 C (230 HB); carburise 900950 C; harden 810840 C oil; carburised surface ~60 HRC over a tough core.
Standards & quality
Manufactured to DIN EN 10084; EAF + LF + VD melting (ESR on request); 100% UT plus case-depth and hardness verification; EN 10204-3.1 / 3.2 MTRs. 21MnCr5 and W.Nr. 1.2162 are the same grade.
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.

Price:
Price 1.0 USD ($) / Piece
Minimum Order Quantity : 1 Piece
Dimension (L*W*H) : Customized Millimeter (mm)
Color : Metallic
Product Type : Forged Products
Process : Hot Forging / Heat Treatment / Machining
Price 1.0 USD ($) / Piece
Minimum Order Quantity : 1 Piece
Dimension (L*W*H) : Customized Millimeter (mm)
Color : Silver / Metallic
Product Type : Forged Products
Process : Forging / Hot Forging / Machining
Price 1.0 USD ($) / Piece
Minimum Order Quantity : 1 Piece
Dimension (L*W*H) : Customized Millimeter (mm)
Color : Black / Silver / Grey
Product Type : Forged Products
Process : Hot Forging / Open Die Forging
Price 1.0 USD ($) / Piece
Minimum Order Quantity : 1 Piece
Dimension (L*W*H) : Customized Millimeter (mm)
Color : Metallic Gray Black
Product Type : Forged Products
Process : Forging Open Die Forging Hot Forging