Bobcat Teeth for Bucket 220-9107 Replacement Parts

What materials are used for pins?

The common materials of pins and their characteristics are as follows:

I. General steel

Carbon structural steel ‌

Such as A3 carbon steel and 45 steel, which have good processing performance and low cost, are widely used in common mechanical connecting parts (such as flat key pins).

Alloy structural steel ‌

40Cr steel ‌ : high hardness (HRC38+), wear-resistant and impact-resistant, this material is commonly used for tower crane pins;

20CrMnTi carburized steel ‌ : The surface is hardened and wear-resistant, while the core remains tough. It is the preferred choice for bulldozer track pins.

Ii. Special Steel

High manganese steel (ZGMn13) ‌

The surface self-hardens under severe impact and has extremely strong anti-fracture properties, making it specifically suitable for ultra-heavy-load scenarios such as tank track pins.

Bearing steel (GCr15) ‌

After overall quenching, it has outstanding fatigue resistance and is suitable for high-precision transmission positioning pins.

Iii. Anti-corrosion Materials

Austenitic stainless steel ‌

304 stainless steel has excellent anti-rust performance (salt spray >96 hours) and is suitable for pins of agricultural machinery and Marine equipment.

Grade A1 stainless steel ‌

Food-grade anti-corrosion standard, used for connecting parts in special environments.

Four. Lightweight materials

Aluminium alloy ‌

In light-load scenarios, steel pins need to be replaced and surface hardening treatment is required.

Copper alloy ‌

Specialized for conductive scenarios, such as locating pins for electrical equipment.

Selection suggestion ‌ :

Heavy-load impact environment: 20CrMnTi carburized steel or high manganese steel is preferred.

Corrosion condition: 304 stainless steel material;

Cost-sensitive scenario: 45 steel carbon steel.