Product Specifications
|
Parameter |
Value |
|
Common Materials |
304, 316L, 2205 Duplex Steel |
|
Forming Processes |
Sand casting / Lost foam casting / Investment casting |
|
Dimensional Tolerance |
Sand casting CT8-CT10, Investment casting CT4-CT6 |
|
Surface Roughness |
Ra3.2-25μm |
|
Defect Control |
Pressure parts UT Level 2 + PT, cracks prohibited, pores controlled per process standard |
|
Delivery State |
Solution treated & acid pickled, passivated, shot-blasted (as agreed) |
|
Heat Treatment Equipment |
Car-bottom resistance furnace |
|
Typical Applications |
Chemical pump and valve housings, food processing equipment parts, marine components, environmental equipment housings |
Complete In-House Stainless Steel Casting
We produce stainless steel precision castings for applications that require corrosion resistance and strength. Our factory handles every step from melting to finishing. We have our own casting shop for stainless steel melting. We have a heat treatment shop for solution treatment. We have a machining shop for precision finishing. We also have a testing lab for material analysis and inspection. This complete in-house capability means we control the quality at every stage. You do not need to coordinate with multiple suppliers. We deliver finished parts ready for your assembly line.
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Material Options and Forming Processes
Our standard materials are 304 austenitic stainless steel, 316L austenitic stainless steel, and 2205 duplex stainless steel. We choose the forming process based on your part geometry. Sand casting works for larger, simpler shapes. Lost foam casting handles complex internal passages. Investment casting gives the best surface finish and dimensional accuracy. The dimensional tolerance is CT8 to CT10 for sand casting and CT4 to CT6 for investment casting. The surface roughness ranges from Ra3.2 to 25 micrometers, depending on the process selected.
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Inspection and Defect Control
For pressure-bearing parts, we perform UT Level 2 ultrasonic testing plus PT dye penetrant inspection. We use PT instead of MT because stainless steel is non-magnetic. Cracks are not allowed. Pore size and quantity are controlled according to process standards. The delivery state can be solution treated and acid pickled, passivated, or shot-blasted as you specify. Each part is inspected to ensure it meets the drawing requirements. We take photos and keep records for every shipment.
ISO-Certified Quality with Full Documentation
We are certified under ISO9001:2015. Every batch of stainless steel raw material is tested with a direct-reading spectrometer when it arrives. We test the chemistry again during melting to confirm the alloy grade. After casting, we do solution treatment in our own heat treatment shop. This restores the corrosion resistance. We take mechanical test samples from each batch. These go to our universal testing machine for tensile and yield data. Every shipment comes with a material certificate, mechanical report, and inspection reports for pressure parts.
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