8620 Alloy Steel Rods - Grainger Industrial Supply

4130 is easy to weld, machine, and resists abrasion and impacts. This grade is often used for fasteners and architectural and structural applications.
4140 contains chromium for added wear and corrosion resistance and molybdenum to withstand cracking and exposure to elevated temperatures. This grade is often used for aerospace and automotive components and parts exposed to continual stress.
4330 is strong, resists impacts, and is easy to machine and weld. This grade is often used for automotive and aerospace applications.
4340 resists wear and fatigue and keeps its shape at high temperatures. This grade is often used for machine tools, hydraulic parts, and automotive and aircraft components.
8620 contains nickel for added ductility and molybdenum and chromium for extra wear and abrasion resistance. This grade is often used for gears, springs, tools, and machine parts.
9310 resists fatigue and has a high-core strength. This grade is easy to weld and is often used for crankshafts and gears in aerospace and automotive applications.
52100 contains carbon and chromium for extra strength, hardness, and wear resistance properties. This grade is often used for bearings.

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