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Case-Hardened Dowel Pins
Case-hardened dowel pins are cylindrical fasteners designed to align and secure components in machinery. They feature a hardened outer surface (case) through processes like carburizing while retaining a softer, ductile core.
Description
Case-hardened dowel pins are cylindrical fasteners designed to align and secure components in machinery. They feature a hardened outer surface (case) through processes like carburizing while retaining a softer, ductile core. This dual structure balances wear resistance and toughness. If you're dealing with precision molds at Wenqi Machinery, making sure you have the correct dowel pins for your molds is a crucial factor in achieving high-quality results.
Case-Hardened Dowel Pins
Size:
Available in various diameters and lengths
Material:
Alloy Steel
Tolerance range:
m6 or h6
Surface finish:
Plain
Hardness Rating:
Hardened and tempered to HRC 58~62
Our products
Advantages of Case-Hardened Dowel Pins
Superior Wear Resistance
Hardened Surface (55–65 HRC):
The carburizing or nitriding process infuses carbon/nitrogen into the outer layer, creating a wear-resistant surface ideal for high-friction environments.
Extended Lifespan:
Resists abrasion, galling, and surface deformation, reducing replacement frequency in demanding settings like automotive transmissions or industrial machinery.
Impact Resistance
Tough, Ductile Core (~30 HRC):
The softer inner core absorbs dynamic loads, vibrations, and impacts without fracturing-unlike fully hardened pins, which are brittle.
Reduced Shear Risk:
The core's flexibility prevents catastrophic failure under sudden stress, critical in applications like punch presses or heavy equipment.
Precision
Retained Accuracy Under Load:
The hardened surface maintains tight tolerances even under cyclic stress, ensuring consistent alignment in jigs, molds, or aerospace assemblies.
Minimal Deformation:
Resists surface indentation during installation/removal, preserving fit in precision tooling or CNC machinery.
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