Product

Stainless Steel Investment Casting Supplier | Custom Manufacturing

Stainless Steel Investment Casting Supplier – Leesh Holdings delivers high-precision custom components using advanced lost wax casting technology. We specialize in producing complex, high precision and net shape casting parts for mining, food processing, medical, aerospace…… with strict adherence to ASTM/DIN/AU/GB standards.

Precision Investment Casting Techniques

Our stainless steel investment casting supplier process integrates silica sol and water glass methods to achieve superior surface finishes (Ra 1.6–3.2μm) and tight dimensional tolerances CT5-CT7. CNC-machined prototypes ensure accuracy before full-scale production.

Material & Quality Assurance

As a trusted stainless steel investment casting supplier, we work with 304/316/316L alloys and duplex grades, backed by Material Test Reports (MTR). All castings undergo 100% dimensional inspection and X-ray testing.

Custom Solutions & Applications

From few grams to dozens kgs, our foundry supports low-MOQ orders with rapid prototyping via 3D-printed wax patterns. Ideal for food-grade sanitary parts or industrial machinery components requiring exceptional durability. Contact us for CAD-based quoting and on-time global shipping.

Stainless Steel Investment Casting Supplier – Casting Material

GC X5CrNi18-10ASTM A351CF8 / CF3 (304L)EN 10283:2019G-X5CrNi18-9 / G-X2CrNi19-11AS 2074:2003H5A / H5B / H5CAustenitic Stainless Steel (316 Type)ISO 17162:2016GC X5CrNiMo17-12-2ASTM A351CF8M / CF3M (316L)EN 10283:2019G-X5CrNiMo18-10 / G-X2CrNiMo19-11-2AS 2074:2003H6A / H6B / H6C / H6D / H6EDuplex Stainless SteelISO 17162:2016GC X2CrNiMoN22-5-3ASTM A9954A / 5A (CD3MN)EN 10283:2019G-X2CrNiMoN22-5-3AS 2074:2003Grade 5A / 5B (Duplex)High-Temperature AusteniticISO 17162:2016GC X12CrNi25-21ASTM A297Grade HK-40EN 10296-2:2005X12CrNi25-21AS 2074:2003H10 SeriesCast Martensitic StainlessISO 17162:2016GC X20Cr13ASTM A743/A744CA6NMEN 10283:2019G-X20Cr14AS 2074:2003Grade 4A / 4BHigh-Chromium Iron-BasedISO 17162:2016GC X30CrMoNi15-2ASTM A743CE30EN 10283:2019


Material Type	ISO Standard	ASTM Standard	European Standard (EN)	Australian Standard (AS)
Austenitic Stainless Steel (304 Type)	ISO 17162:2016





		G-X30CrMoNi15-2	AS 2074:2003 H4 Series (28% Cr)

Stainless Steel Investment Casting Supplier

Lost Wax Investment Casting-Valve-Body-2

Lost Wax Investment Casting-Valve-Body-1

Leesh Holdings:Stainless Steel Investment Casting Supplier

Custom Investment Casting

Leesh Holdings provides top Lost Wax 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 Investment Casting Process

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 Best Investment Casting Companies (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

Aerospace
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.

Send your 2D/3D drawings to get a fast and professional custom solution!