EN-GJS-600-3 Precision Casting

QT600-3 is a kind of pearlitic ductile iron, which conforms to the Chinese national standard GB 1348-88. In its grade, "QT" represents ductile iron, "600" indicates that the tensile strength is ≥600MPa, and "3" means the elongation is ≥3%. The following are its core characteristics, applications, and supply information:

I. Material Characteristics

Chemical Composition

Carbon (C): 3.56% - 3.85%
Silicon (Si): 1.83% - 2.80%
Manganese (Mn): 0.30% - 0.70%
Sulfur (S) ≤ 0.045%, Phosphorus (P) ≤ 0.058%, Magnesium (Mg): 0.041% - 0.067%

Mechanical Properties

Tensile Strength: ≥600MPa
Yield Strength: ≥370MPa
Hardness: 190 - 270HB
Density: 7.3g/cm³

Heat Treatment Specifications

Normalizing: Holding at 930°C for 2 hours and air cooling.
Tempering: Holding at 600°C for 2 hours and air cooling.
Metallographic Structure: Pearlite + Ferrite

Performance Advantages

It has a balanced combination of strength, toughness, and plasticity, excellent wear resistance and damping properties, and stable casting process performance. Its performance can be further optimized through heat treatment.

II. Application Fields
It is mainly used for mechanical components that withstand complex stresses, such as:

Power Machinery: Crankshafts, camshafts, connecting rods, gears
Hydraulic Systems: Cylinder blocks, pump bodies, valve bodies
Industrial Equipment: Machine tool guideways, rolling mill stands, clutch plates

III. Supply Information

Processing and Purchasing

Forms Supported: Round bars (diameter 20 - 450mm), square materials, plates
Surface Quality: No pores or trachoma, customizable for fine processing
Price Range: Approximately ¥7.00 - ¥12.50/kg (Discounts are available for purchases of ≥10 kg)

Logistics and Services

Shipping Location: Mainly from Dongguan, Guangdong, and supports nationwide logistics (Deppon, SF Express, etc.)
After-sales Policy: Materials with problems can be fully returned with the freight covered, and VAT invoices are supported.

QT600-3 is widely applicable in industrial scenarios with high requirements for strength and wear resistance due to its high reliability and economy. It is recommended to select the heat treatment process and processing specifications according to the specific working conditions.