car bolts , Iran

Automotive parts are primarily divided into engine and chassis components. In the engine: Cylinder blocks are made from A380 aluminum or gray cast iron with a hardness of 180-240 Brinell. Pistons utilize 4032 aluminum alloy with a moly-coat coating to reduce friction. Crankshafts are forged from 5140 carbon steel, heat-treated to 55-60 Rockwell C. Valves employ X45CrSi9-3 heat-resistant steel, tolerating up to 850°C. Turbochargers can deliver airflow up to 35 kg/min at a maximum speed of 250,000 RPM. Direct injection systems operate at 200 to 350 bar pressure. These components achieve a volumetric efficiency exceeding 90%.

In the chassis: Suspension systems include hydraulic shock absorbers with 22-35 mm piston diameters. This system can absorb up to 2000 Newtons of force per second. Brake discs are cast from chromium and molybdenum-enhanced gray iron. Front disc diameters in passenger cars range from 280 to 380 mm. Electro-hydraulic power steering provides up to 6 Nm of assistive torque. Wheel bearings are angular contact types with a 150,000 km design life. Body components use high-strength steels with minimum tensile strengths from 340 to 1200 MPa. These materials enable a 20-30% weight reduction compared to mild steel. The quality of these parts directly impacts vehicle safety, fuel efficiency, and comfort.You can order and buy car bolts from Iran by contacting us through whatsaap and email.
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