Technology / product information

Kobayashi Casting has extensive experience in lost wax casting of stainless steel components for the water and gas industries. With a fully integrated production system at our factory in Vietnam, we flexibly accommodate a wide range of customer production needs.
By strictly adhering to the Japanese Industrial Standard (JIS G 5121), we not only ensure dimensional accuracy and corrosion resistance, but also meet rigorous requirements for pressure resistance, tight sealing, and durability in outdoor and corrosive environments. With an annual production capacity of 300 tons, we deliver cost-effective, high-quality solutions with short lead times.

Key Features of Kobayashi Casting’s Lost Wax Casting Technology
- Japanese-Standard Casting Technology
Accuracy and quality are controlled under JIS standards, ensuring consistent quality.
- Diverse Industry Applications
From water and gas systems to medical devices, semiconductors, and mechanical components.
- Strict Quality Management
Material composition is verified using spectrometers, hardness testers, and 3D measuring machines.
- Wide Material Compatibility
Experienced in casting stainless steels such as SCS13, SCS14, CF3M, 1.4581, and 17-4PH.
- Flexible Post-Casting Machining
Secondary machining with tight tolerances of ±0.01mm, even for components with complex shapes.
- Experienced Technical Team
Our skilled engineers bring years of precision lost wax casting expertise to each project.
- Proven Export Track Record
Over 90% of our products are exported to markets such as the USA, Germany, Japan, and Asia.
- Fully Integrated In-House Production
From mold design, casting, machining to surface treatment, all processes are handled within our Vietnam facility.

Product Specifications for Water & Gas Industry Castings
- Maximum Size: Up to 300 mm
- Maximum Weight: Up to 20 kg
- Materials: Stainless steel types SCS13, 1.4581, 1.4409
- Minimum Order Quantity: 50 pieces or 50 kg and above

Equipment Capabilities
- Casting Equipment:
10-ton wax injection machines, drying furnaces, medium- and high-frequency melting furnaces
- Inspection Equipment:
Metal composition analyzers, hardness testers, 3D coordinate measuring machines (CMM)
- Post-Casting Machining:
CNC machining centers for precision processing
- Quality Control System:
Metal analyzers, molten metal temperature gauges, 3D and image-based measurement tools

In the water and gas sector, requirements for pressure resistance, corrosion resistance, and long-term durability are extremely demanding. At Kobayashi Casting, we meet these expectations with a completely integrated production line—from mold design, casting, machining to final inspection—all performed at our Vietnam factory.
Thanks to our JIS-compliant quality management system and stable annual production of 300 tons, we confidently deliver high-precision stainless steel castings across a wide range of industries, with short delivery times and exceptional quality.
If you’re looking for a reliable partner in high-quality lost wax casting, Kobayashi Casting is your ideal solution.