The specific material used is typically a high-grade, medium-carbon alloy steel, chosen for its ability to be heat-treated to achieve the desired hard surface and tough core.
Primary Material: A common choice for such applications is AISI 4140 or 4340 alloy steel.
4140 Steel (Chromoly Steel): Offers an excellent balance of strength, toughness, and wear resistance. It responds very well to heat treatment (quenching and tempering), making it a standard for high-stress mechanical components like excavator pins.
4340 Steel (Nickel-Chromium-Moly Steel): Used for even more demanding applications, it offers higher strength and toughness, particularly in larger cross-sections. It is superior for withstanding impact and fatigue.
This 304-7345 pin is used for 986H 986K 980H 980K R1700K 950GC wheel loader.






Related part number:
3B-8686
7K-9211
8R-3946
096-6467
115-7048
185-7219
186-6319
186-6320
201-1161
304-7345
7X-7742
8T-1482
8T-4141
8T-4780
8T-5878











