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Why choose us?
1. Precision investment casting
Silica sol + zirconium sand composite shell (9 layers coating), shell high temperature strength ≥1600℃
Vacuum assisted casting, casting density ≥99% (X-ray inspection according to ASTM E192 standard)
2. Special post-treatment
Hot isostatic pressing (HIP) : 1000℃/100MPa treatment, close the internal micropores
Tempering heat treatment: quenching + tempering optimization combination of strength and toughness (such as ZG20CrMo after tempering impact work ≥35J)
3. Digital finishing
Five-axis CNC machining key fit surface (flatness ≤0.05mm/m)
Industrial CT scan (voxel resolution 50μm) detects internal defects
4. Surface strengthening technology
Shot peening: Almen test piece strength 0.2-0.4mmA, improve fatigue life
Nitriding treatment (optional) : surface hardness ≥HV800, wear resistance increased by 3 times
Product introduction
This precision investment casting steel is made of high-quality low carbon steel/alloy steel (tensile strength 400-850MPa), through multi-layer silica sol composite shell (9 layers of coating) and vacuum assisted casting process, to achieve 1.8mm thin-wall complex structure molding (CT6 accuracy). The product is enhanced by hot isostatic pressing (1000℃/100MPa) and tempering heat treatment, combined with five-axis CNC finishing (flatness ≤0.05mm/m) and industrial CT detection (50μm resolution), widely used in petroleum valves, food machinery and hydraulic systems and other key components. Industrial-grade casting solutions that combine high density (≥99%) with structural complexity.
Our advantage
1. High quality material system
Low carbon steel (ZG200-400)/alloy steel (ZG20CrMo), tensile strength ≥400-850MPa, elongation ≥18%, suitable for high-stress structural parts
Optional stainless steel (304/316) or heat-resistant steel (ZG40Cr25Ni20), to meet the corrosion/high temperature (≤1150℃) conditions
2. Complex structure forming ability
Minimum wall thickness 1.8mm, maximum single weight 200kg, dimensional accuracy CT6 (ISO 8062)
It can cast deep holes (depth to diameter ratio 8:1), special-shaped runner, precision gear tooth shape and other complex features that are difficult to achieve in machining
3. Multi-industry adaptability
Fluid equipment: pump valve shell, impeller (surface roughness Ra≤3.2μm)
Energy equipment: turbine seal ring, boiler accessories (pressure ≥10MPa)
Food machinery: hygienic components in line with FDA standards
4. Strict quality certification
Provide material report (MTC) + mechanical performance test report
Compliance with PED 2014/68/EU Pressure Equipment Directive (CE certification is optional)
Detail data
Application | Hardware |
Material Type | Stainless steel |
Standard | Equipment Machinery Parts |
Molding Technics | Lost Wax Casting |
Casting | Investment Casting |
Weight | 1.5kg~50kg |
FAQ
1.What is the Minimum Order Quantity?
5~1000 pcs. And we also accpet sample orders.
2. Can you manufacture according to customer's samples?
According to samples, we can make drawing, tooling and sample
3.How long will it take to make new samples according to customer's drawing or sample?
Totally 20 days. 10 days for tooling and another 10 days for sample.
