KJXPM-S
Classic Pre-hardened Forged Plastic Mold Steel
Improved 2738HH-grade steel with high purity, fine microstructure, and excellent hardness uniformity. Offers significantly enhanced polishability, etching and texturing performance, machinability, weldability, toughness, and thermal conductivity compared to standard 1.2738. Pre-hardened to 38–42 HRC with uniform hardness.
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Application Cases
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Product Features
  • Injection molds with high surface quality requirements such as automotive and home appliances, including tail lamps, grilles, control panels, appliance panels, and transparent parts; other high-demand injection and extrusion molds.

Grade Comparison
KJXPM-S
German W.Nr
XPM
China Baowu
SW718.TS
Sweden ASSAB
618T
Japan HITACHI
PAC2000
Chemical Composition (wt%)
KJXPM-S
C
0.23-0.29
Si
≤0.4
Mn
1.40-1.70
P
≤0.025
S
≤0.025
Cr
1.20-1.80
Mo
0.30-0.70
Ni
0.9-1.2
V
0.08-0.15
Non-Metallic Inclusions
Type A (Sulfides)Type B (Aluminates)Type C (Silicates)Type D (Oxides)
Fine Series ≤1.5
Heavy Series ≤1.0
Fine Series ≤1.5
Heavy Series ≤1.0
Fine Series ≤1.5
Heavy Series ≤1.0
Fine Series ≤1.5
Heavy Series ≤1.0
Online Contact Form
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export@zjkejia.com