...
Manufacturing Materials

Materials for Custom Parts

Explore metals and engineering plastics for CNC machining, sheet metal fabrication, and 3D printing. Tenghui helps you select suitable materials based on your part’s function, tolerances, surface finish, and production requirements.

From single prototypes to repeat production, we review your drawings and material specifications before manufacturing.

NDA available before sharing project files.
CNC Machining Materials Overview
CNC Metals

We machine metal components for housings, brackets, shafts, fixtures, and other custom parts. Material grade, heat treatment, and surface finish are reviewed according to your drawings.

Material Common Grades Key Characteristics & Selection Notes Typical Parts
Aluminum 2017, 5052, 5083, 6061, 7075 Lightweight and suitable for a wide range of machined parts. Strength, machinability, and anodized appearance vary by alloy and temper. Housings, mounting plates, brackets, optical components
Copper T2 and other grades on request High electrical and thermal conductivity. Grade selection depends on conductivity, machining, and joining requirements. Electrical contacts, conductive components, heat-transfer parts
Brass Grade specified at quotation Good machinability and suitable for detailed turned or milled components. Composition and cutting performance vary by grade. Threaded fittings, connectors, bushings, instrument components
Stainless Steel 304, 316L, 440C Offers corrosion resistance or hardening capability depending on the grade. Select the material according to the operating environment and required hardness. Shafts, fasteners, equipment components, precision fittings
Carbon & Alloy Steel Q235B, C45, 42CrMo4, 16MnCr5 Options for structural, wear-resistant, and heat-treated parts. Required hardness, treatment condition, and corrosion protection should be specified. Machine components, shafts, fixtures, structural brackets
Titanium Grade specified at quotation Combines low density with good strength and corrosion resistance. Material grade and machining requirements are reviewed for each project. Lightweight brackets, equipment components, corrosion-resistant fittings
CNC Plastics

CNC machining is suitable for plastic prototypes and functional parts requiring specific material properties. We review wall thickness, dimensional tolerances, and finishing requirements to help reduce deformation and improve part consistency.

Material Key Characteristics & Selection Notes Typical Parts
ABS Impact-resistant plastic suitable for general-purpose prototypes and machined housings. Painting and other finishing options can be reviewed on request. Enclosures, covers, functional prototypes
POM / Acetal Low friction, good machinability, and dimensional stability. Suitable for precision mechanical parts and sliding components. Bushings, gears, sliding guides, fixtures
PA / Nylon Tough and wear-resistant. Moisture absorption should be considered when specifying close tolerances and operating conditions. Rollers, wear pads, gears, guides
PC / Polycarbonate Transparent plastic with high impact resistance. Final clarity depends on machining and finishing requirements. Protective covers, inspection windows, equipment guards
PMMA / Acrylic Suitable for clear components and display parts. Polishing can improve transparency where the part geometry allows. Viewing windows, transparent housings, display components
UHMW-PE Low-friction, wear-resistant plastic with high impact resistance. Close tolerances require review because of its flexibility and thermal expansion. Wear strips, liners, guide blocks, conveyor components
Sheet Metals

We provide sheet metal parts for enclosures, panels, brackets, and assemblies. Material grade, thickness, bend geometry, and surface finish are reviewed together before production.

Material Common Grades Key Characteristics & Selection Notes Typical Parts
Aluminum 5052, 6061 5052 is commonly used for bent parts and enclosures. The suitability of 6061 for bending depends on temper, thickness, and bend radius. Enclosures, panels, brackets, mounting plates
Stainless Steel 304, 316L Suitable for parts requiring corrosion resistance and a brushed or polished appearance. Grade selection depends on the service environment. Equipment covers, trays, cabinets, brackets
Carbon Steel SPCC, Q235B Practical options for fabricated structures and general sheet metal components. Powder coating, plating, or other protection can be specified. Machine covers, chassis, mounting brackets, frames
Copper Grade specified at quotation Suitable for conductive and heat-transfer components. Forming and joining requirements depend on material grade and thickness. Busbars, electrical plates, conductive brackets
Brass Grade specified at quotation Suitable for selected formed, decorative, and electrical components. Material availability and forming suitability are confirmed during quotation. Panels, terminals, trim, custom brackets
3D Printing Metals
Material Description Applications / Industries
Aluminum Alloy
(AlSi10Mg)
Lightweight aluminum alloy with good thermal conductivity and mechanical properties, suitable for complex geometries and weight-saving designs. Lightweight Housings, Brackets, Heat Dissipation Components, Functional Prototypes.
Stainless Steel Corrosion-resistant metal suitable for complex functional parts. Post-machining and surface finishing are available according to project requirements. Fluid Handling Components, Equipment Housings, Industrial Parts, Functional Prototypes.
Tool Steel Steel for tooling applications requiring hardness and wear resistance after appropriate heat treatment. Mold Inserts, Conformal Cooling Inserts, Custom Tooling, Manufacturing Fixtures.
3D Printing Plastics

Choose from SLA resins and nylon materials for appearance models, fit checks, and functional prototypes. Material selection depends on the required strength, flexibility, surface finish, and operating conditions.

Material Process Key Characteristics & Selection Notes Typical Parts
Standard Resin SLA Suitable for detailed models and smooth surfaces. Best suited to appearance evaluation and fit checks. Visual prototypes, concept models, assembly models
Tough / ABS-Like Resin SLA Resin options for prototypes requiring greater toughness than standard resin. ABS-like resin is distinct from machined or molded ABS. Prototype housings, covers, fit-check components
Clear Resin SLA Suitable for transparent or translucent prototypes. Final clarity depends on geometry and post-processing. Display models, viewing components, transparent prototypes
PA12 Nylon SLS / MJF Suitable for functional prototypes and complex parts. Surface texture, appearance, and achievable tolerances depend on the printing process. Housings, ducts, clips, jigs, fixtures
Glass-Fiber-Reinforced Nylon SLS / MJF Options for parts requiring greater stiffness. Exact grades and properties are confirmed according to the selected process. Rigid housings, brackets, tooling components, fixtures
Engineering Support

Need Help Choosing a Material?

Send us your CAD files, quantities, and intended application. Our team can help compare suitable options based on strength, weight, dimensional requirements, surface finish, and cost.

Please include any required material standard, heat treatment, certification, or operating conditions with your inquiry. Specific grades and availability are confirmed during quotation.

Upload Your Files for a Quote
NDA available before sharing project files.
Send Us a Message

Once we receive your design files, our senior manufacturing engineers will manually perform a comprehensive DFM review and deliver an accurate, optimized quote within 24 hours.