Stainless Steel Lost Wax Casting Material Standards
Stainless Steel Lost Wax Casting – Standard System, Grade Examples, Key Characteristics & Applications
| Standard System | Grade Examples | Key Characteristics (Chemical Composition / Application Scenarios) | Typical Application Fields |
|---|---|---|---|
| American Standard (ASTM/AISI) | A276-304
A276-316 A276-310S A276-410 A276-440C |
1. 304: Cr18Ni8, moderate corrosion resistance, general-purpose casting stainless steel
2. 316: Cr18Ni12Mo2, better pitting corrosion resistance than 304 3. 310S: Cr25Ni20, high temperature resistance (above 1000°C) 4. 410: Martensitic stainless steel, heat treatment strengthenable 5. 440C: High-carbon martensite, high hardness and wear resistance |
Valves, pumps, mechanical parts, heat-resistant components, wear-resistant castings |
| Australian Standard (AS) | AS 4443-304
AS 4443-316 AS 4443-310S AS 4443-410 |
Direct one-to-one correspondence with American standard grades, only with different standard number prefixes (e.g., AS 4443 is the standard for casting stainless steel) | The same application fields as American standard, suitable for Australian local engineering standards |
| European Standard (EN) | EN-GF-30400
EN-GF-31600 EN-GF-31000 EN-GF-41000 |
1. EN-GF-30400: Equivalent to American standard 304, AISI 304 equivalent
2. EN-GF-31600: Equivalent to American standard 316, containing Mo element 3. EN-GF-41000: Equivalent to American standard 410, martensitic type |
General European machinery, chemical equipment, building structures |
| British Standard (BS) | BS EN 12161-304
BS EN 12161-316 BS EN 12161-410 |
1. BS EN 12161 is the British standard for casting stainless steel, with grades consistent with European standard
2. For example, BS EN 12161-304 is equivalent to EN-GF-30400 |
Engineering, shipbuilding, metallurgical equipment in the UK and Commonwealth countries |
| Manufacturing Method | OEM Investment Casting Services (Lost Wax Casting) |
| Material Standard | GB, ANSI, BS, DIN, JIS, ASTM, ASME, AISI, etc Carbon steel, Low carbon steel, Middle carbon steel, G35, G45, WCB, WCA, WCC, ISO 340-550, etc. 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. Copper, Brass, Bronze |
| Weight Range | 0.01 kgs to 100 kgs |
| Cast Hole Min. 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 Stimulation | 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 |
OEM Investment casting Services , also known as lost wax casting, is a casting method in which a pattern is made of a melt-able material, then coated with several layers of refractory material to form a shell, and the pattern is melted away after high-temperature firing, and then the molten metal is poured into the shell.
Investment casting have high precision and high surface quality, with small machining allowances, which can achieve less or no machining requires. Investment casting can cast complex thin-walled parts with complex shapes (the minimum wall thickness can reach 0.25-0.4mm), and the smallest hole diameter can reach 2.5mm.
The process normal as below:
Drawing Review ->Tooling Designing ->Tooling Manufacturing ->Wax Pattern Making ->Pattern Tree Assembly ->Dipping and Coating ->De-waxing and Firing- Pouring-Knockout ->Grinding ->Heat Treatment -> Machining(if requires) ->Inspection->Delivery
Leesh holdings is the key leading supplier of OEM Investment Casting parts to both China market and global market.Through many years development, our casting parts now services in railway, automobile and truck, construction machinery, mining machinery, forklift truck, agricultural machinery, ship, petroleum machinery, construction, pump valve, mechanical and electrical, hardware tools, electric power equipment, etc.
Leesh capability
Method: Investment Casting, Lost Wax Casting, Precision Casting
| Process Description | Process Control | |||
| Mass(kgs) | General Tolerance Standard | Casting Tolerance(CT) | Surface Rougness(μm) | |
| Silicon Sol | 0.05-50 | ISO 8062 | CT4-CT6 | Ra 3.2～6.3 μm |
| Water Glass | 0.10-100 | ISO 8062 | CT6-CT8 | Ra 6.3～12.5 μm |
Material:
Stainless Steel (General SUS304, SUS316, 1.4301), etc.,
Stainless Iron (General 201, 420, 430), etc.,
High/Middle/Low Carbon Steel (A3, Q235, 45), etc.,
Alloy Steel (General 20cr, 20crmo, 20crnimo, 40cr, 40crmo, 40crnimo, 42cr, 42crmo, 42crnimo) etc.,
Brass (H59, H62, H75, H80), etc.,
Red Copper, Bronze, White Copper and other materials.
The above list Is For Reference Only, If You Have Special Needs, Please Contact Customer Service Staff.
Post Casting Process:
Ordinary Polishing, Mirror Polishing, Electrolytic Polishing, Brushed Finishing, Grinding, Heat Treatment, Finishing, Drilling and Tapping,Plating, etc
Surface Treatment:
polishing, powder coating, zinc plating, chrome plating,heat treatment,tumbling polishing, electro-polishing.
We understand your concerns about the quality, we have bought full sets of advanced inspection facilities,Spectrum analyzer, metallographic microscope, tensile testing machine, low temperature impact testing machine, X-ray flaw detection machine, magnetic particle flaw detection machine, ultrasonic flaw detection machine, coordinate measuring instrument, image measuring instrument. The above equipment can ensure the supply of high-standard precision castings to customers, and meet customers’ comprehensive testing requirements for physical and chemical properties of materials, non-destructive defect testing, and high-precision geometric size testing.
https://chinafoundrygroup.com/investment-casting-service/
