4,000+ Stainless Steel Precision Casting Products

Stainless Steel Precision
Castings — Investment & Lost Wax Process

Silica sol & water glass precision investment casting. 316L, 304, CF8M, 904L. Complex geometries, mirror-finish surfaces. From Zhejiang, Jiangsu, and Shandong — China's precision casting heartland.

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4,000+
SS Precision Products
2,489
Stainless Steel Castings
1,693
Silica Sol Castings
24h
Quote Response

Stainless Steel Precision Casting Products

Every product investment cast for maximum precision and surface quality — from valve bodies to pump impellers

Best Quality

Stainless Steel Pump Bodies

316L / 304 pump casings, impellers, and diffusers. Excellent corrosion resistance for chemical processing, water treatment, and marine applications.

316L (1.4404) 304 (1.4308) Silica Sol
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High Demand

Stainless Steel Valve Bodies

Ball valve, gate valve, and globe valve bodies in CF8M (316), CF8 (304). API/ANSI compliant flanges. Used in oil & gas, chemical, and food industries.

CF8M (316) CF8 (304) Investment Cast
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Rotary Valves & Airlock Feeders

Stainless rotary valves, star feeders, and airlock products for pneumatic conveying systems in food, pharmaceutical, and chemical industries.

304 / 316L Mirror Polish
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Pump Volutes & Impellers

316L stainless volutes and impellers for centrifugal pumps. Cast to near-net shape, minimal machining required. Mirror-finish internal passages.

316L SS316
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Actuator & Motor Housings

Stainless actuator housings, motor end bells, and junction boxes for industrial automation and marine environments.

SS304 SS316L
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Heat Resistant

Heat-Resistant Tray & Tray Posts

Custom heat-resistant steel castings (Cr25Ni20, Cr18Ni9) for furnace trays, quenching baskets, and annealing equipment.

Cr25Ni20 耐热钢
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Why Precision Casting from Verify Casting?

Near-Net Shape Precision

Investment casting produces parts with ±0.05mm dimensional tolerances. Complex geometries that would require machining from solid bar are cast ready-to-use.

Mirror-Finish Surface Quality

Silica sol investment casting produces surface finishes of Ra 1.6-3.2μm without secondary machining. Ideal for visible components in food, medical, and decorative applications.

Full Material Range

2,489 stainless steel castings + 443 heat-resistant steel + specialty alloys (904L, 317L, Duplex 2205). We match the right alloy to your application environment.

No MOQ for Samples

Many factories accept 1-5 piece sample orders for qualification. Perfect for prototyping and pre-production validation before committing to full volume.

MTC & Third-Party Testing

Every shipment includes material test certificates (MTC/EN 10204 3.1). Chemical composition and mechanical property testing available from SGS or Bureau Veritas.

Zhejiang & Jiangsu Heartland

918 factories in Jiangsu + 239 in Zhejiang. The Zhejiang Jiaxing region is China's precision casting capital — the best quality-to-price ratio globally for investment castings.

Frequently Asked Questions

What's the difference between silica sol and water glass precision casting?

Silica sol casting produces superior surface finish (Ra 1.6-3.2μm) and tighter tolerances (±0.05mm). Water glass casting is more cost-effective (±0.1mm, Ra 6.3-12.5μm). For visible or high-precision parts, silica sol is recommended.

What stainless steel grades are commonly used?

304 (CF8, 1.4308) — general purpose, good corrosion resistance. 316L (CF3M, 1.4404) — superior chloride resistance, for marine/chemical. 904L — highly alloyed, for aggressive acids. Duplex 2205 — high strength + corrosion resistance.

Can you produce food-grade or medical-grade stainless castings?

Yes. We work with factories holding FDA, CE, and ISO 22000 certifications. Food-grade surface finishes (mirror polish, electropolishing) and traceability documentation available for medical device components.

What are typical tolerances for investment castings?

Standard investment casting: ±0.1mm per 25mm. Precision investment casting (silica sol): ±0.05mm per 25mm. Weight tolerance: ±2%. Surface roughness: Ra 1.6-12.5μm depending on process.

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