Precision Threading Hex Forgings with Protective Zinc Finish

The main differences between hot forging and cold forging lie in the processing temperature and process characteristics:

Temperature difference

Cold forging is carried out at room temperature or near room temperature, and the metal retains its original hardness. Hot forging involves heating the metal to a temperature above the recrystallization point (usually above 800℃) to improve its plasticity through high temperatures. ‌

Material applicability

Cold forging is suitable for metals with good plasticity (such as aluminum, copper alloys, low-carbon steel, etc.), while hot forging is more suitable for metals with poor plasticity (such as high alloy steel) or complex-shaped workpieces that require greater deformation force. ‌

Process characteristics

Pressure requirement ‌ : Cold forging requires equipment with greater pressure, while hot forging requires relatively less pressure ‌

Surface quality ‌ : The surface of cold forging is smoother and has higher dimensional accuracy, while the surface roughness of hot forging is higher ‌

Energy consumption and cost ‌ : Cold forging saves heating equipment, but has higher requirements for molds; Hot forging requires heating equipment but the cost of the equipment is lower ‌

Application scenarios

Cold forging is mostly used for precision components (such as automotive transmission parts), while hot forging is often applied to large and complex workpieces or scenarios where internal quality needs to be improved

All of our precision threading hex forgings with protective zinc finish are made according to customer's drawings or samples. They could be standard size or non-standard size. The below chart is to show how we serve to our customers:

Product Advantages of Precision Threading Forgings with Zinc Finish:

• Superior Strength & Durability: Forged construction creates a denser grain structure, significantly enhancing mechanical strength, fatigue resistance, and load-bearing capacity compared to machined parts. Built to withstand high stress, vibration, and demanding applications.

• Guaranteed Precision Fit: Accurately machined threads ensure perfect engagement with mating components, providing secure, reliable fastening, reducing the risk of loosening, cross-threading, or assembly failures.

• Exceptional Corrosion Resistance: The protective zinc finish acts as a robust barrier, shielding the base metal from rust, oxidation, and degradation caused by moisture, chemicals, and harsh environmental conditions, significantly extending service life.

• Long-Term Cost Savings: While potentially higher upfront cost, the product's exceptional durability, resistance to wear and corrosion, and reduced need for replacements or maintenance translate into significant long-term operational savings.

  
  

Packaging:

FAQ:

1Q: What corrosion protection does the zinc finish provide?

1A: Electroplated or galvanized zinc coating offers excellent rust resistance, typically meeting ASTM B117 salt spray standards for hundreds of hours.

2Q: How strong are these forgings?

2A: Forging enhances grain flow, providing superior tensile strength (e.g., meets/exceeds SAE Grade 5 or 8) and fatigue resistance vs. machined parts.

3Q: Are threads compatible with standard fasteners?

3A: Yes, precision threads conform to standard specifications (e.g., UNC, UNF, Metric) ensuring reliable mating. Confirm thread specs per order.

4Q: What torque can they withstand?  

4A: High forged strength allows for rated torque values appropriate to their grade and size. Consult torque tables; avoid over-torquing.

5Q: Is the premium cost justified? 

5A: Yes，Forging + zinc significantly extends service life, reduces failure risk, and lowers total cost of ownership in demanding applications.