1.4301 Investment Casting
1.4301 Investment Casting from Leesh Holdings: custom 18/8 stainless steel parts (austenitic, EN 1.4301 / AISI 304), made by the silica sol lost wax casting process. Near-net-shape forming holds tight tolerances with a smooth as-cast finish, reducing machining cost. Ideal for valve bodies, pump parts, marine hardware and food machinery. Send your drawing for a 1.4301 precision casting quote.
1.4301 Precision Casting — Material & Specifications
| EN Designation | 1.4301 (X5CrNi18-10), EN 10088 |
| Equivalent Grades | AISI 304 / SUS 304 / UNS S30400 / GB 06Cr19Ni10 |
| Casting Grades | CF8 (ASTM A743 / A351) / GX5CrNi19-10 (1.4308), EN 10213 |
| Steel Type | Austenitic stainless steel, 18/8 family (approx. 18% Cr, 8% Ni) |
| Carbon (C) | ≤ 0.07% |
| Casting Process | Silica sol lost wax casting |
| Dimensional Tolerance | ISO 8062 CT4–CT6 as cast, tighter by CNC machining |
| Part Weight | Per customer drawing |
| Surface Treatment | As cast / polished / pickled & passivated / electropolished |
| Customization | OEM & ODM to drawing or sample, CNC machining supported |
1.4301 Lost Wax Casting Process & Quality Control
Every 1.4301 casting starts from a wax pattern and ends as a fully inspected part. The silica sol shell process delivers fine surface detail and stable dimensions, batch after batch.
- Wax pattern injection and assembly
- Ceramic shell building by silica sol dipping
- Dewaxing and shell firing
- Molten metal pouring and solidification
- Shell removal, cut-off and grinding
- CNC machining, surface treatment and final inspection
Quality control: spectrometer chemical analysis on every heat, PMI verification on request, CMM dimensional inspection, pressure testing for valve parts, and material certificates supplied with shipment.
Applications of 1.4301 Investment Castings
The 18/8 composition combines corrosion resistance with good weldability, making 1.4301 castings a reliable choice across industries:
- Valve bodies, bonnets and trim
- Pump impellers, casings and diffusers
- Marine hardware and yacht fittings
- Food processing and dairy equipment parts
- Sanitary and pipe fittings
- Architectural, door and glass hardware
Why Leesh Holdings
- OEM / ODM production strictly to your drawings or samples
- One-stop service: investment casting, CNC machining and surface treatment
- DFM feedback before tooling to cut risk and cost
- Export-standard packing and stable lead times
Frequently Asked Questions
What is 1.4301 stainless steel equivalent to?
EN 1.4301 (X5CrNi18-10) equals AISI 304, SUS 304, UNS S30400 and GB 06Cr19Ni10. For cast parts, the matching casting grades are CF8 (ASTM A743 / A351) and GX5CrNi19-10 / 1.4308 (EN 10213).
Which products fit 1.4301 lost wax casting best?
Complex, thin-walled or near-net-shape parts where machining from bar stock would be expensive — valve and pump components, marine hardware, food machinery and sanitary fittings are typical examples.
What tolerance and surface finish can you achieve?
Silica sol castings typically hold ISO 8062 CT4–CT6 as cast with a smooth surface, and tighter dimensions come from CNC machining. Surfaces can be supplied as cast, polished, pickled & passivated or electropolished.
How do I get a 1.4301 precision casting quote?
Send your 2D drawing or 3D model with quantity and target price. Our engineers check castability, confirm the material standard and heat treatment, then provide a drawing-based quotation with MOQ and lead time.
Leesh : Professional Silica Sol Investment Casting Manufacturer
Depth Adjust Opener Mount
Leesh Holdings provides top Silica Sol Investment Casting Manufacturer (lost wax casting) for global industrial clients, delivering high-precision, complex metal components with consistent quality, cost efficiency, and reliable lead times.
With years of manufacturing experience and advanced production facilities, we specialize in custom investment casting solutions for aerospace, automotive, medical, machinery, marine, and other high-demand industries.
Leesh Silica Sol Investment Casting
Core Advantages of Our Investment Casting Service
✅ One Stop Solution
Full service from tooling manufacturing to finish machining, providing you with total solutions.
✅ Global Service
Professional English-speaking team with at least 5 years of global customer service experience.
✅ Experienced Engineers
Mature engineer training system, knowledgeable, energetic and enthusiastic technical support.
✅ Well-Maintained Equipment
Strict equipment maintenance ensures stable and reliable product quality and consistent performance.
✅ Cost & Production Efficiency
Low rejection rate and optimized process bring the best balance between cost and benefit for global customers.
✅ Professional Inspection & Testing
Complete quality inspection including material, dimension, NDT, scanning and strict testing for every product.
Technical Specifications & Parameters
Manufacturing MethodOEM Investment Casting Services (Lost Wax Casting)Material StandardGB, ANSI, BS, DIN, JIS, ASTM, ASME, AISI, etcMain MaterialsCarbon steel, Low carbon steel, Middle carbon steel, G35, G45, WCB, WCA, WCC, ISO 340-550, etc.Copper, Brass, BronzeWeight Range0.01 kgs to 100 kgsCast Hole Min.
| Alloy Carbon steel: G25CrMo4, Heat Resistant Steel, etc. Stainless Steel: SUS 304, 304L, 316, 316L, CF8, CF8M, G-X7CrNiNb1189, AS2074 or according to customer specific requirement. | |
| Dia. | Ø2mm |
| General Casting Tolerance | CT4-CT7 |
| Design Software | UG, Pro-E, Inventor |
| Dwg Format | STP, STEP, IGS, STP, X_T, DXF, DWG, Pro/E, PDF, SLDPRT |
| Mould Manufacturing | Yes |
| Casting Simulation | Yes |
| Ultimate machining tolerance | 0.005mm |
| Quality Control | RT, UT, MT, PT, CMM, SCAN, Chemical and Mechanical Property Testing, Spectrometer, etc |
| Finish Roughness | Ra1.6-Ra3.2 according to customer requirement |
| Logo/ID | Silk-screening, Laser Marking, Engrave, Painting |
| Heat Treatment | Normalization, Annealing, Quenching and Tempering, Case Hardening, Nitriding, Carbon Nitriding, Induction Quenching, etc |
| Surface Treatment | Shot/sand blast, Polishing, Surface Passivation, Painting, Anodizing, Powder coating, ED-Coating, Chrome Plating, zinc-plate, Dacromat coating, Finish Painting, hot-dip galvanizing, etc |
Our Investment Casting Services Scope
- Custom investment casting for metal parts (0.01kg – 100kg)
- Precision CNC machining & secondary processing
- Surface treatment: polishing, sandblasting, painting, passivation, plating
- Non-destructive testing (NDT), dimensional inspection & material certification
- Prototype & mass production solutions
Applicable Industries
Automotive
Medical Equipment
Industrial Machinery
Marine & Shipbuilding
Valve & Pump Parts
Construction Hardware
Quality Assurance
Leesh Holdings implements strict quality-every casting part under full inspection to ensure dimensional accuracy, material consistency, and performance stability for your critical applications.
Get a Custom Quote
Tell us your part and quantity — we will reply with unit weight, DFM suggestions and a drawing-based price.
