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In the automotive industry, precision and reliability are non-negotiable, especially for safety-critical components that operate under extreme conditions. Our OEM Investment Casting Stainless Steel Automotive Parts offer a perfect fusion of intricate design capability, material purity, and dimensional accuracy, setting the standard for high-performance components in modern vehicles. Leveraging the investment casting (lost wax) process, we produce complex stainless steel parts with surface finishes as fine as Ra 3.2μm and tolerances as tight as ±0.05mm, eliminating the need for extensive post-machining and ensuring seamless integration into advanced automotive systems.
The investment casting process begins with the creation of a wax pattern, which is coated in multiple layers of ceramic slurry to form a rigid shell. After melting out the wax, molten stainless steel—ranging from austenitic grades like 304/316 to martensitic grades like 410/430—is poured into the shell, resulting in near-net-shape components with exceptional surface detail. This method is ideal for producing intricate geometries such as turbocharger housings, brake calipers, exhaust manifolds, and transmission components, where traditional machining or forging would be cost-prohibitive or technically infeasible.
Investment casting allows for intricate internal channels, thin walls (as thin as 1.5mm), and complex external contours, such as aerodynamic surfaces or integrated cooling fins. This design flexibility enables the creation of lightweight, high-strength components that optimize space and performance in tight automotive layouts.
We utilize a wide range of stainless steel alloys, each selected for specific automotive requirements:
304/316 Stainless Steel: Excellent corrosion resistance for exhaust systems, fuel lines, and exterior trim in harsh weather conditions.
410/420 Stainless Steel: High hardness and wear resistance for brake components, valve bodies, and transmission gears.
17-4 PH Precipitation-Hardened Stainless Steel: A balance of strength, toughness, and dimensional stability for turbocharger components exposed to high temperatures and centrifugal forces.
Our automated casting and inspection processes ensure uniform wall thickness, precise hole locations, and consistent mechanical properties across large production runs. Advanced non-destructive testing (NDT) methods—such as X-ray and dye penetrant inspection—verify internal integrity, while coordinate measuring machines (CMM) confirm dimensional accuracy to within microns, meeting or exceeding OEM specifications.
By eliminating unnecessary material through hollow designs and load-bearing structural elements, our parts help reduce vehicle weight, improving fuel efficiency and performance. The investment casting process also minimizes material waste, aligning with the automotive industry’s goals for sustainable manufacturing.
We offer end-to-end OEM solutions, from collaborative design engineering (using CAD/CAM software) to serialized traceability for critical components. Whether producing low-volume prototypes or high-volume production runs (100-100,000+ units), our flexible manufacturing cells adapt to unique part geometries, surface finish requirements (polished, bead-blasted, or painted), and regulatory standards (IATF 16949, VDA 6.3).
Turbocharger Housings: Cast from heat-resistant stainless steel, these housings withstand exhaust gas temperatures up to 900°C while maintaining tight clearances for turbocharger bearings, improving engine efficiency and reducing emissions.
Transmission Gears and Cases: Precision-cast gears with smooth tooth profiles minimize noise and vibration, while lightweight cases enhance power-to-weight ratios in electric and hybrid vehicles.
Steering Knuckles: High-strength 4340 steel (alloyed with stainless characteristics) knuckles provide robust load-bearing capacity while enabling complex geometries for optimized suspension geometry.
Exhaust Manifolds: Austenitic stainless steel manifolds resist thermal fatigue and corrosion from exhaust gases, extending service life in gasoline and diesel engines. Their intricate internal runners improve exhaust flow, reducing backpressure and enhancing engine performance.
Catalytic Converter Housings: 316L stainless steel housings protect catalytic substrates from moisture and mechanical damage, ensuring long-term compliance with emissions standards like Euro 7 and CARB.
E-Motor Brackets: Lightweight yet rigid castings secure electric motors in EVs, with integrated mounting points and cable channels that simplify assembly. The corrosion resistance of stainless steel is critical for protecting components in battery-electric vehicle undercarriages, which are exposed to road debris and electrolyte spills.
Battery Enclosure Frames: Custom cast frames provide structural support for lithium-ion battery packs, with fire-resistant and impact-resistant properties that meet global EV safety standards.
For premium automotive brands, our investment-cast stainless steel parts offer both functional and aesthetic benefits. Polished stainless steel trim pieces, precision-engineered for zero visible flaws, enhance interior and exterior styling, while lightweight suspension components improve handling and acceleration in sports cars and supercars.
We are specialized in producing kinds of precision casting spare parts, such as architecture parts, machine metal parts, valve parts, engineering machinery part etc...The materials we used for casting include carbon steel, alloy steel, stainless steel, refractory steel, ductile iron, etc.
1. Material: Carbon steel, alloy steel, stainless steel, aluminum alloy, zinc alloy, brass, gray iron,
Nodular cast iron, ductile Iron or other specified
2. Standard: ASTM, AISI, BS, DIN, JIS, NF
3. Process: Investment casting, die casting, gravity casting, sand casting
4. Machining: Turning, milling, drilling, grinding, threading, CNC machining, etc.
5. Finishing: Sand blasting, polishing, plating, acid treatment, anodizing, painting and PVC
Powder coating
6. Certificate: ISO 9001-2000 ISO/TS16949
7. Application: Automotive & Transportation Parts; Fitness Equipment; Mining Machinery; General Industrial Equipment; Home Appliance; Architectural parts etc.
Our Inspection Equipment:
Direct-reading spectrograph,metallographic microscope,hardness tester,brinell hardness tester,thermometric indicator,universal testing machine,carbon and silicon analysis meter,magnetic powder flaw detector,digital ultrasonic flaw detector etc.
Our Service:
1.Your inquiry related to our products or prices will be replied in 12 hours.
2.Individual formula according to customers' special drawing requests.
3.Manufacturer with large capacity,ensures the fast production cycle after
confirming the order.
4.Protection of sales area and private information for all of our customers.
Quality Control:
We have a full set of quality control system to guarantee best product quality. Depending on the products, we can make different Item Testing Plan, Manufacturing procedure etc.
Raw material control
Chemistry spectrum analysis
Mechanical property
Metallographic analysis
Ultrasonic testing
Magnetic testing
Radiographic testing
Dimension inspection
Visual inspection
Penetrant testing
Leak testing
Hardness test
Micro-structure tester after heat treatment
Machining Ability
Our machining shop located in Qingdao using the latest CNC equipment to provide our customer with high quality products.
Horizontal and Vertical Machining Center
CNC lathe and normal lathe
CNC drilling and milling Center
Other assistant equipment
In the automotive industry, precision and reliability are non-negotiable, especially for safety-critical components that operate under extreme conditions. Our OEM Investment Casting Stainless Steel Automotive Parts offer a perfect fusion of intricate design capability, material purity, and dimensional accuracy, setting the standard for high-performance components in modern vehicles. Leveraging the investment casting (lost wax) process, we produce complex stainless steel parts with surface finishes as fine as Ra 3.2μm and tolerances as tight as ±0.05mm, eliminating the need for extensive post-machining and ensuring seamless integration into advanced automotive systems.
The investment casting process begins with the creation of a wax pattern, which is coated in multiple layers of ceramic slurry to form a rigid shell. After melting out the wax, molten stainless steel—ranging from austenitic grades like 304/316 to martensitic grades like 410/430—is poured into the shell, resulting in near-net-shape components with exceptional surface detail. This method is ideal for producing intricate geometries such as turbocharger housings, brake calipers, exhaust manifolds, and transmission components, where traditional machining or forging would be cost-prohibitive or technically infeasible.
Investment casting allows for intricate internal channels, thin walls (as thin as 1.5mm), and complex external contours, such as aerodynamic surfaces or integrated cooling fins. This design flexibility enables the creation of lightweight, high-strength components that optimize space and performance in tight automotive layouts.
We utilize a wide range of stainless steel alloys, each selected for specific automotive requirements:
304/316 Stainless Steel: Excellent corrosion resistance for exhaust systems, fuel lines, and exterior trim in harsh weather conditions.
410/420 Stainless Steel: High hardness and wear resistance for brake components, valve bodies, and transmission gears.
17-4 PH Precipitation-Hardened Stainless Steel: A balance of strength, toughness, and dimensional stability for turbocharger components exposed to high temperatures and centrifugal forces.
Our automated casting and inspection processes ensure uniform wall thickness, precise hole locations, and consistent mechanical properties across large production runs. Advanced non-destructive testing (NDT) methods—such as X-ray and dye penetrant inspection—verify internal integrity, while coordinate measuring machines (CMM) confirm dimensional accuracy to within microns, meeting or exceeding OEM specifications.
By eliminating unnecessary material through hollow designs and load-bearing structural elements, our parts help reduce vehicle weight, improving fuel efficiency and performance. The investment casting process also minimizes material waste, aligning with the automotive industry’s goals for sustainable manufacturing.
We offer end-to-end OEM solutions, from collaborative design engineering (using CAD/CAM software) to serialized traceability for critical components. Whether producing low-volume prototypes or high-volume production runs (100-100,000+ units), our flexible manufacturing cells adapt to unique part geometries, surface finish requirements (polished, bead-blasted, or painted), and regulatory standards (IATF 16949, VDA 6.3).
Turbocharger Housings: Cast from heat-resistant stainless steel, these housings withstand exhaust gas temperatures up to 900°C while maintaining tight clearances for turbocharger bearings, improving engine efficiency and reducing emissions.
Transmission Gears and Cases: Precision-cast gears with smooth tooth profiles minimize noise and vibration, while lightweight cases enhance power-to-weight ratios in electric and hybrid vehicles.
Steering Knuckles: High-strength 4340 steel (alloyed with stainless characteristics) knuckles provide robust load-bearing capacity while enabling complex geometries for optimized suspension geometry.
Exhaust Manifolds: Austenitic stainless steel manifolds resist thermal fatigue and corrosion from exhaust gases, extending service life in gasoline and diesel engines. Their intricate internal runners improve exhaust flow, reducing backpressure and enhancing engine performance.
Catalytic Converter Housings: 316L stainless steel housings protect catalytic substrates from moisture and mechanical damage, ensuring long-term compliance with emissions standards like Euro 7 and CARB.
E-Motor Brackets: Lightweight yet rigid castings secure electric motors in EVs, with integrated mounting points and cable channels that simplify assembly. The corrosion resistance of stainless steel is critical for protecting components in battery-electric vehicle undercarriages, which are exposed to road debris and electrolyte spills.
Battery Enclosure Frames: Custom cast frames provide structural support for lithium-ion battery packs, with fire-resistant and impact-resistant properties that meet global EV safety standards.
For premium automotive brands, our investment-cast stainless steel parts offer both functional and aesthetic benefits. Polished stainless steel trim pieces, precision-engineered for zero visible flaws, enhance interior and exterior styling, while lightweight suspension components improve handling and acceleration in sports cars and supercars.
We are specialized in producing kinds of precision casting spare parts, such as architecture parts, machine metal parts, valve parts, engineering machinery part etc...The materials we used for casting include carbon steel, alloy steel, stainless steel, refractory steel, ductile iron, etc.
1. Material: Carbon steel, alloy steel, stainless steel, aluminum alloy, zinc alloy, brass, gray iron,
Nodular cast iron, ductile Iron or other specified
2. Standard: ASTM, AISI, BS, DIN, JIS, NF
3. Process: Investment casting, die casting, gravity casting, sand casting
4. Machining: Turning, milling, drilling, grinding, threading, CNC machining, etc.
5. Finishing: Sand blasting, polishing, plating, acid treatment, anodizing, painting and PVC
Powder coating
6. Certificate: ISO 9001-2000 ISO/TS16949
7. Application: Automotive & Transportation Parts; Fitness Equipment; Mining Machinery; General Industrial Equipment; Home Appliance; Architectural parts etc.
Our Inspection Equipment:
Direct-reading spectrograph,metallographic microscope,hardness tester,brinell hardness tester,thermometric indicator,universal testing machine,carbon and silicon analysis meter,magnetic powder flaw detector,digital ultrasonic flaw detector etc.
Our Service:
1.Your inquiry related to our products or prices will be replied in 12 hours.
2.Individual formula according to customers' special drawing requests.
3.Manufacturer with large capacity,ensures the fast production cycle after
confirming the order.
4.Protection of sales area and private information for all of our customers.
Quality Control:
We have a full set of quality control system to guarantee best product quality. Depending on the products, we can make different Item Testing Plan, Manufacturing procedure etc.
Raw material control
Chemistry spectrum analysis
Mechanical property
Metallographic analysis
Ultrasonic testing
Magnetic testing
Radiographic testing
Dimension inspection
Visual inspection
Penetrant testing
Leak testing
Hardness test
Micro-structure tester after heat treatment
Machining Ability
Our machining shop located in Qingdao using the latest CNC equipment to provide our customer with high quality products.
Horizontal and Vertical Machining Center
CNC lathe and normal lathe
CNC drilling and milling Center
Other assistant equipment
