Alloy Steel 40Cr Precision Casting

Alloy Steel 40Cr Precision Casting

Material: 40Cr Alloy Steel
Process: Lost Wax Investment Precision Casting
Weight: 2.60 kg
Heat Treatment: Quenching + Tempering

OEM Custom Alloy Steel 40Cr Precision Casting from China Investment Casting Foundry. CNC precision machining services are available.


OEM Custom Alloy Steel 40Cr Precision Casting from China Investment Casting Foundry. CNC precision machining services are available.

▶ Casting Process of Alloy Steel

✔ Alloy Steel Casting Parts by Lost Wax Casting
Lost wax investment casting is a method of precision casting complex near-net-shape details using replication of wax patterns. It is a metal forming process that typically uses a wax pattern surrounded by a ceramic shell to make a ceramic mold. When the shell dries, the wax is melted away, leaving only the mold. Then the casting component is formed by pouring molten metal into the ceramic mold. Also called precision investment casting, lost wax casting could achieve complex forms with exceptional surface qualities for both small and large casting parts in a wide range of materials such as carbon steel, alloy steel, stainless steel...etc. lost wax casting offers tighter dimensional tolerances, better surface finishes, produces near-net shape parts which therefore require less machining and other processing, and allows for the steel casting of complex-geometry parts and intricate details such as casting marks and company logos.

Advantages of Alloy Steel Investment Casting Components:
• Excellent and smooth surface finish
• Tight dimensional tolerances.
• Complex and intricate shapes with design flexibility
• Capability to cast thin walls therefore a lighter casting component
• Wide selection of cast metals and alloys (ferrous and non-ferrous)
• Draft is not required in the molds design.
• Reduce the need for secondary machining.
• Low material waste.

✔ Alloy Steel Parts by Lost Foam Casting
Lost foam casting process produce near the near net shape casting parts with lost patterns made from expandable polystyrene, EPS. The EPS positive patterns are mounted to a casting system. After dressing, the pattern clusters are inserted into pouring vessels, which are then filled with unbound quartz sand. During casting, the patterns remain in the compacted sand mould.

Advantages of Steel Lost Foam Castings:
• Greater design freedom in the construction of cast parts
• Small quantity is possible due to the layered structure of the pattern.
• Lower need for secondary machining with near net shape.
• High flexibility by short start up lead time.
• Longer EPS mould span life, thus lower average tool costs

✔ Alloy Steel Casting Parts by Vacuum Casting (V Process Casting)
Vacuum castings are the metal parts that are produced by the vacuum casting method, which is also called v process casting or vacuum molding casting. They are different from typical investment castings due to the technique used to create the molds. The process begins by placing a two-piece mold in a vacuum chamber. The vacuum then draws the molten metal into the mold. Finally, the casting is solidified in an oven and the mold is removed in order to release the final product.

▶ Capabilities of Cast Alloy Steel Components
• Max Size: 1,500 mm × 1000 mm × 500 mm
• Weight Range: 0.1 kg - 500 kg
• Annual Capacity: 5,000 tons - 6,000 tons
• Tolerances: On Request.

▶ How We Inspect the Cast Alloy Steel Components:
• Spectrographic and manual quantitative analysis
• Metallographic analysis
• Brinell, Rockwell and Vickers hardness inspection
• Mechanical property analysis
• Low and normal temperature impact testing
• Cleanliness inspection
• UT, MT and RT inspection

Capabilities for Casting at RMC
Casting Process Annual Capacity / Tons Main Materials Casting Weights Dimensional Tolerance Grade of Castings (ISO 8062) Heat Treatment
Green Sand Casting 6000 Cast Gray Iron, Cast Ductile Iron, Cast Aluminium, Brass, Cast Steel, Stainless Steel 0.3 kg to 200 kg CT11~CT14 Normalization, Quenching, Tempering, Annealing, Carburization
Shell Mold Casting 0.66 lbs to 440 lbs CT8~CT12
Lost Wax Investment Casting Water Glass Casting 3000 Stainless Steel, Carbon Steel, Steel Alloys, Brass, Cast Aluminium, Duplex Stainless Steel 0.1 kg to 50 kg CT5~CT9
0.22 lbs to 110 lbs
Silica Sol Casting 1000 0.05 kg to 50 kg CT4~CT6
0.11 lbs to 110 lbs
Lost Foam Casting 4000 Gray Iron, Ductile Iron, Steel Alloys, Carbon Steel, Stainless Steel 10 kg to 300 kg CT8~CT12
22 lbs to 660 lbs
Vacuum Casting 3000 Gray Iron, Ductile Iron, Steel Alloys, Carbon Steel, Stainless Steel 10 kg to 300 kg CT8~CT12
22 lbs to 660 lbs
High Pressure Die Casting 500 Aluminium Alloys, Zinc Alloys 0.1 kg to 50 kg CT4~CT7
0.22 lbs to 110 lbs

CNC Precision Machining Capabilities
Facilities Quantity Size Range Annual Capacity Accuracy
Vertical Machining Center (VMC) 48 sets 1500mm × 1000mm × 800mm 6000 tonn or 300000 pieces ±0.005
Horizontal Machining Center (VMC) 12 sets 1200mm × 800mm × 600mm 2000 tons or 100000 pieces ±0.005
CNC Machine 60 sets Max turning dia. φ600mm 5000 tons or 600000 pieces