Available Materials for CNC Machining & Sheet Metal Fabrication
Full-spectrum certified metal materials for custom manufacturing projects.
We process a wide range of aluminum, stainless steel, carbon steel, copper, brass and special alloy materials. All raw materials come with complete mill test reports, supporting everything from small prototypes to large-scale production for automotive, medical, aerospace and industrial automation applications.
High-Quality Certified Metal Material Supply System
Certified Raw Materials
All metals are sourced from qualified large-scale steel mills with complete MTR certification.
Full Traceability
Complete batch recording and material traceability for every production order.
Customized Matching
Engineer one-on-one material selection for different working environments and budgets.
As a professional CNC machining and sheet metal fabrication factory, we have established a long-term stable supply chain of metal raw materials. We fully support aluminum alloy, stainless steel, carbon steel, copper, brass, alloy steel and special metal materials. Whether it is lightweight structural parts, corrosion-resistant equipment parts or high-strength mechanical components, we can provide perfectly matched raw materials and complete quality inspection documents to ensure that the finished parts meet international industrial standards and customer design requirements.
Wide Range of Metal Materials Available
We provide multiple metal material options for custom CNC machining and sheet metal fabrication. Each material has unique mechanical properties to fit different application environments.
Aluminum Alloys
Lightweight, good corrosion resistance and excellent machinability for industrial parts.
Aluminum
Common aluminum material with stable physical properties and wide manufacturing applications.
Bronze
Good wear resistance and thermal conductivity, suitable for bearings, gears and fluid parts.
Copper
High electrical conductivity and ductility, widely used in electrical and thermal components.
Brass
Excellent machinability, corrosion resistance and surface finish for precision parts.
Magnesium
Ultra-lightweight metal with high specific strength for aerospace and automotive applications.
Spring Steel
High elasticity and fatigue resistance, suitable for springs and high-reliability components.
Iron
Basic ferrous material with good strength and low cost for general structural parts.
Titanium Alloy
High strength, corrosion resistance and biocompatibility for medical and aerospace parts.
Stainless Steel
Excellent corrosion resistance and hygiene performance for medical, food and chemical parts.
Steel
Good comprehensive mechanical properties, suitable for structural and load-bearing components.
Titanium
High strength-to-weight ratio and corrosion resistance for demanding industrial applications.
Metal Material Performance Comparison
Check the core physical performance, machining difficulty and typical applications of commonly used metals to help you select the most suitable material for your custom parts.
| Material | Density | Machinability | Corrosion Resistance | Surface Treatment | Typical Use |
|---|---|---|---|---|---|
| Aluminum 6061 | 2.70 g/cm³ | Excellent | Good | Anodizing, Sandblasting | Automation Housings |
| Aluminum 7075 | 2.80 g/cm³ | Good | Moderate | Hard Anodizing | Aerospace Parts |
| SS304 | 7.93 g/cm³ | Moderate | Very Good | Mirror Polishing | Medical & Marine |
| Carbon Steel 45# | 7.85 g/cm³ | Good | Poor | Powder Coating | Mechanical Brackets |
| Brass | 8.50 g/cm³ | Excellent | Good | Plating | Connectors & Fittings |
How We Help You Choose The Right Metal Material
Material selection directly affects part performance, service life and manufacturing cost. Our engineering team will evaluate your project requirements and recommend the most suitable metal for your custom CNC machining and sheet metal fabrication.
Share your working environment, load requirements, surface finish demands and budget, and our engineers will provide professional material suggestion with supporting technical explanation.
Key Factors For Material Selection
Working temperature, humidity and corrosive environment
Mechanical requirements: tensile strength, hardness, impact load
Surface finishing requirement: anodizing, plating, powder coating
Production volume, lead time and project budget
Surface Finishing Services For Sheet Metal & CNC Parts
Improve the durability and appearance of your precision custom machining parts with our comprehensive surface finishing options. We provide full range post-processing services for metal components.
As Machined
Raw surface directly from CNC machining. Cost-effective solution with visible tool marks for non-critical assembly parts.
Anodizing
Increases corrosion resistance and wear properties, supports custom color dyeing. Ideal surface treatment for aluminum alloy parts.
Hard Anodizing
Thick hard coating for superior surface hardness and wear resistance, providing reliable corrosion protection for aluminum workpieces.
Alodine
Conversion coating offers great corrosion protection and enhances paint adhesion, widely applied on aluminum surfaces.
Sand Blasting
Pressurized abrasive media cleans and textures metal surface, delivering uniform matte finish and removing machining blemishes.
Polishing
High-gloss finishing reduces surface roughness, boosts aesthetic appeal and creates mirror-smooth metal surfaces.
Brushed Finish
Unidirectional satin texture hides minor scratches and tool marks, offering consistent decorative surface for metal parts.
Electroplating
Thin metal layer electroplated on components, improving wear resistance, corrosion resistance and surface conductivity.
Powder Coating
Thick wear-resistant protective coating with rich color options, excellent durability for sheet metal and steel assemblies.
Electropolish
Chemical polishing process smoothes and brightens metal surfaces, while enhancing corrosion resistance for stainless steel.
Painting
Liquid protective paint coating enhances part appearance, with abundant color selections for custom sheet metal projects.
Heat Treatment
Thermal treatment modifies metal mechanical properties to increase hardness, tensile strength and ductility for load-bearing parts.
Our Factory Certificates & Qualifications
We maintain complete manufacturing certifications and inspection reports. All production processes follow strict quality standards to meet international customer requirements.
ISO 9001 Quality Management
Certified quality control system covering raw material incoming inspection, production process and finished product testing.
RoHS Compliance
Products comply with EU RoHS directives, suitable for electronics, automation and medical equipment applications.
Material Test Reports
We can provide MTR material test certificates for each batch of raw metals for your engineering audit.
Common Material Selection Questions
Here are the most frequently asked questions about metal material selection, machining performance and material certification for your reference.
Can you provide official material test reports (MTR)?
Yes. All raw materials are purchased from certified suppliers. We can provide complete MTR material test reports, including chemical composition and mechanical property data for each production batch.
What is the difference between 6061 and 7075 aluminum?
6061 aluminum has better machinability and corrosion resistance, suitable for general structural parts. 7075 aluminum features much higher hardness and tensile strength, ideal for high-load and aerospace precision parts.
Which metal is best for corrosion resistance?
316L stainless steel performs best in humid, marine and acid-base environments. For regular indoor use, 304 stainless steel is cost-effective and sufficient for most industrial scenarios.
Do you support custom special alloy materials?
Yes. Besides conventional aluminum, steel and copper, we can customize titanium alloy, magnesium alloy and high-strength alloy steel according to your drawing requirements.
Will you suggest materials for my project?
Absolutely. Our professional engineering team will recommend the most cost-effective material solution based on your usage environment, strength requirements, surface standards and budget.
Can you do heat treatment and surface finishing?
Yes. We provide one-stop services including quenching, aging, anodizing, sandblasting, plating and powder coating to meet your final part performance and appearance needs.