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Home / CNC Machining Materials Guide - 500+ Metal & Plastic Grades | LC Manufacturing

CNC Machining Materials Guide - 500+ Metal & Plastic Grades | LC Manufacturing

Materials

500+ Material Grades Ready to Machine

From aerospace-grade Titanium and Inconel to medical PEEK and engineering plastics. Match strength, weight, corrosion, temperature, finish, and budget requirements before RFQ.

500+ MaterialsMetals & PlasticsFull Material Certs
Core Strength

Proven Expertise Across High-Difficulty Materials

We transfer proven expertise from turn-mill compound machining and stainless steel mirror finishing to a wide range of high-difficulty materials. For orders from 1,000 to 5,000 pieces, we provide the most cost-effective one-clamp mass production solution.

Engineering Metals

Six Metal Categories

Aluminum

6061 / 7075 / 5052 / MIC-6 / 2024 / 6063

Lightweight structural parts, housings, heat sinks. Excellent strength-to-weight ratio.

Stainless Steel

303 / 304 / 316L / 17-4PH / 15-5PH

Medical, food-grade, corrosion-resistant. Mirror finish Ra 0.05μm.

Carbon & Alloy Steel

1018 / 1045 / 4130 / 4140 / 4340 / 8620

Gears, shafts, tooling, load-bearing components.

Brass & Copper

C360 / H59 / C110 / C101 / Beryllium Cu

Electrical contacts, fittings, RF and thermal parts.

Titanium

Grade 2 / Grade 5 (Ti-6Al-4V)

Aerospace, medical, high strength-to-weight parts.

Tool Steel

D2 / H13 / S7 / O1 / P20

Mold inserts, guide pins, wear blocks, forming blocks.

Engineering Plastics

High-Performance Plastic Materials

PEEK

High-performance, 260°C temp resistance, medical/aerospace grade.

POM (Delrin)

Excellent wear resistance and dimensional stability. Gears, bearings.

Nylon (PA)

High strength and toughness. Transmission parts, structural components.

PTFE

Ultra-low friction, chemical resistant. Seals, insulators.

PEI (Ultem)

High strength, high temperature. Aerospace/medical.

PC / ABS / PP / PMMA

General engineering plastics for various applications.

Exotic Alloys

High-Performance Alloys for Extreme Environments

Inconel 625 / 718

Nickel-chromium alloy. High temp, corrosion resistant. Aerospace/chemical.

Hastelloy

Extreme corrosion resistance. Chemical/oil & gas.

Stellite / Tungsten / Molybdenum

Extreme wear and temperature applications.

Material Selection Guide

Compare Key Material Properties

MaterialDensity (g/cm³)Tensile (MPa)CorrosionMachinabilityTypical Use
Aluminum 60612.70310GoodExcellentStructures/Housings
Aluminum 70752.81572FairGoodAerospace
Stainless 316L7.99580ExcellentFairMedical/Chemical
Stainless 17-4PH7.801034GoodFairAerospace/Valves
Titanium Gr.54.43950ExcellentDifficultAerospace/Medical
Brass C3608.50400GoodExcellentElectrical/Decorative
PEEK1.32100ExcellentGoodMedical/Aerospace
POM1.4170ExcellentExcellentGears/Bearings

Not Sure Which Material to Choose?

Our engineers will help you select the right material for your project.

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