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The material selection is crucial for cast parts.
There are a lot of different casting methods out there, each one best suited for specific materials – and we will advise you on which is the best fit for your part in terms of performance, durability, and post-machining.
Get an expert suggestion
| Casting Type | Material | Typical Grades | Key Features | Typical Applications |
| Sand Casting | Carbon Steel | AISI 1018, 1045, 8620 | Strong, tough, heat treatable | Valve bodies, structural parts, machinery housings |
| Sand Casting | Alloy Steel | 4140, 4340, 8620 | High strength, wear-resistant | Power transmission, industrial equipment |
| Investment Casting | Stainless Steel | 304, 316, 17-4PH, 420 | Corrosion resistant, precise | Valves, pumps, chemical & food equipment |
| Investment Casting | Alloy Steel | 4140, 431 | Strong, machinable | Aerospace components, precision parts |
| Investment Casting | Nickel Alloys | Inconel 625, 718, Monel | Heat & corrosion resistant | Aerospace, chemical processing |
| Ductile Iron Casting | Ductile Iron | ASTM A536 60-40-18, 65-45-12 | Strong, ductile, impact resistant | Pipe fittings, automotive, housings |
| Gray Iron Casting | Gray Iron | ASTM A48 Class 30–60 | Vibration damping, compressive strength | Engine blocks, pump housings |
| Aluminum Casting | Aluminum Alloys | 380, 383, 443 | Lightweight, corrosion resistant | Automotive parts, housings, aerospace |
| Copper Alloys | Bronze / Brass | C93200, C95400, C36000 | Wear & corrosion resistant, machinable | Bearings, bushings, electrical connectors |
We serve as a one-stop shop for your parts, from selecting materials to final finishing.
Casting
From sand, investment, ductile iron, and aluminum casting — we deliver parts to spec.
Heat Treatment
Strengthen, harden, or relieve stress in your parts for long-lasting performance.
Surface Finishing
Improve corrosion resistance, appearance, and functionality on metals and plastics.
Discuss materials, casting options, and a complete one-stop solution for your project.
Contact our teamWe offer CNC machining in over 30 different metals and plastics, where the perfect material for your durable and strong parts is available.
| Material | Common Materials | Typical Applications | Notes / Advantages | |
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Aluminum Alloys | 6061, 7075, 5052, 2024 | Aerospace components, Enclosures, Automotive parts | Lightweight, good corrosion resistance, easy to machine |
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Stainless Steel | 304, 316, 410, 420, 17-4PH | Medical equipment, Food machinery, Valves, Shafts | Excellent corrosion and rust resistance, durable, can be hardened |
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Carbon / Alloy Steel | AISI 1018, 1045, 4140, 4340 | Gears, Shafts, Structural components | Strong, can be heat treated for hardness |
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Titanium & Alloys | Ti-6Al-4V, Ti-6Al-4V ELI | Aerospace, Medical implants, High-performance parts | Lightweight, high strength-to-weight ratio, corrosion-resistant |
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Copper & Alloys | C110, C360, Bronze, Brass | Electrical components, Bearings, Heat exchangers | High thermal and electrical conductivity, good machinability |
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Nickel Alloys | Inconel 625, 718, Monel | Aerospace, Chemical processing, High-temp components | Excellent corrosion and high-temperature resistance |
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Other Specialty Materials | Magnesium alloy, Beryllium copper, Ceramic composite etc. | Aerospace, Electronics, Precision parts | Chosen for lightness, thermal or other specialized properties |
| Material | Common Materials | Typical Applications | Notes / Advantages | |
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PEEK | Aerospace parts, High-temperature parts, Medical devices | Gears, Bearings, Housings, Medical components | High strength, excellent chemical and heat resistance, low friction |
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Nylon (PA6/PA66) | Gears, Bearings, Structural components | Gears, Bushings, Bearings, Mechanical components | Strong, wear-resistant, good machinability |
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Delrin / Acetal | Precision parts, Bushings, Insulators | Bushings, Gears, Precision components, Electrical insulators | Low friction, stable dimensions, easy to machine |
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ABS | Enclosures, Consumer products, Prototypes | Electronic enclosures, Housings, Prototypes | Tough, impact-resistant, easy to mold and machine |
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PTFE / Teflon | Seals, Gaskets, Chemical-resistant parts | Seals, Gaskets, Bearings, Chemical-resistant components | Very low friction, excellent chemical resistance, heat resistant |
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Polycarbonate (PC) | Transparent covers, Lenses, Safety shields | Covers, Lenses, Safety shields, Machine guards | High impact strength, transparent, moderate heat resistance |
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Other Specialty Plastics | POM blends, PPS, PEEK-CF, etc. | High-performance parts, Aerospace, Electronics | Chosen for strength, heat resistance, chemical resistance, lightweight |
We offer pro advice on selecting the best material for your CNC parts – and that includes assessing their strength, cost, machinability, performance, and more.
We also have a few other options beyond material selection:
Heat Treatment Improve strength, hardness, and durability of your CNC parts.
Surface Finishing Enhance corrosion resistance and appearance for metals and plastics.
We have complete forging services from drawing to engineering and final production of almost any part you are looking for!
| Material | Typical Grades | Key Features | Typical Applications |
| Carbon Steel | AISI 1018, 1045, 1050 | Strong, tough, heat treatable | Shafts, gears, structural components |
| Alloy Steel | 4140, 4340, 4345 | High strength, fatigue resistant | Automotive, industrial machinery, power transmission |
| Stainless Steel | 304, 316, 17-4PH | Corrosion resistant, durable | Valves, pumps, food & chemical equipment |
| Tool Steel | D2, O1, H13 | High hardness, wear resistant | Dies, cutting tools, industrial components |
| Titanium & Alloys | Ti-6Al-4V, Ti-6Al-4V ELI | Lightweight, high strength-to-weight ratio | Aerospace, medical implants, high-performance parts |
| Nickel Alloys | Inconel 625, 718 | Heat and corrosion resistant | Aerospace, chemical processing, high-temp parts |
| Aluminum Alloys | 6061, 7075 | Lightweight, corrosion resistant | Aerospace, automotive, enclosures |
Forging
We manufacturer parts from a variety of metals, including for strength, durability and reliability.
Heat Treatment
Combination of strength, hardness and temper properties for forged parts.
Surface Finishing
Improve the corrosion resistance, appearance and precision of your forgings.
BestPro offers a complete service from material selection, forging, heat treatment to surface finish.
Contact us today for expert adviceBestPro can supply you a variety of MIM materials for high-performance, complicated, and small components suitable for mass-production.
| Material | Typical Grades | Key Features | Typical Applications |
| Stainless Steel | 304, 316L, 17-4PH, 420 | Corrosion resistant, strong, can be heat treated | Medical devices, valves, consumer products, small mechanical parts |
| Tool Steel | H13, D2, M2 | High hardness, wear resistant, heat treatable | Cutting tools, dies, precision industrial parts |
| Alloy Steel | 4140, 4340 | High strength, fatigue resistant | Gears, shafts, structural components |
| Copper Alloys | C17200, C36000 | High thermal/electrical conductivity, corrosion resistant | Electrical connectors, heat exchangers, small hardware |
| Nickel Alloys | Inconel 625, 718 | High-temperature, corrosion resistant | Aerospace, chemical processing, high-temp components |
| Soft Magnetic Alloys | 430F, 50H | Excellent magnetic properties, corrosion resistant | Sensors, actuators, electronic components |
MIM Production
Produce small, complex metal parts with tight tolerances and consistent quality.
Heat Treatment
Combination of strength, hardness and temper properties.
Surface Finishing
Enhance corrosion resistance, aesthetics, and function of metal components.
Receive expert advice on choosing materials, MIM processing, hardening, and surface finishing.
Contact our teamOur experience provides you with accurate cutting, bending, and shaping, along with the option for additional surface finishing to offer increased longevity and enhanced aesthetic appeal.
Get an expert suggestion 
| Material | Typical Grades | Key Features | Typical Applications |
| Carbon Steel | AISI 1018, 1020, 1045 | Strong, durable, easy to weld and form | Panels, brackets, housings |
| Stainless Steel | 304, 316, 430 | Corrosion resistant, durable | Enclosures, food equipment, medical devices |
| Aluminum Alloys | 5052, 6061, 7075 | Lightweight, corrosion resistant, easy to form | Enclosures, housings, automotive parts |
| Copper & Alloys | C110, C260, Bronze | High conductivity, corrosion resistant | Electrical components, heat exchangers |
| Nickel Alloys | Inconel 625, 718 | High-temperature, corrosion resistant | Aerospace, chemical processing |
| Titanium & Alloys | Ti-6Al-4V | Lightweight, high strength-to-weight ratio | Aerospace, medical devices, high-performance parts |
Sheet Metal Fabrication
Cutting, bending, punching, and forming of panels, brackets, and chassis.
Surface Finishing
Optional for powder coating, anodizing, or painting for anti-rust finishing to get better appearance.
Contact for on-site material selection, fabrication, welding and surface finishes — a single point of contact to assure worry-free sourcing.
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