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Materials Encyclopedia

Industrial Grade Materials

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Aluminum5

CNC Machining

Aluminum 7075

Aliases: AL 7075 / EN-AW7075 / Al-Zn6MgCu

High StrengthToughFatigue ResistantExcellent Machinability

High strength (57MPa), toughness and excellent fatigue resistance. Excellent machinability.

Thermal Cond.130 W/m·K
Therm. Expans.23.6 µm/m·°C
Yield Str.~200 MPa
Density2.7 g/cm³
Corrosion Resist.Average
Technical Data Sheet
CNC Machining

Aluminum 6061

Aliases: AL 6061 / EN-AW6061 / Al-Mg1SiCu

High StrengthGood Weldability

Major alloying elements are magnesium and silicon, with trace amounts of copper.

Thermal Cond.167 W/m·K
Therm. Expans.23.4 µm/m·°C
Yield Str.~200 MPa
Density2.7 g/cm³
Corrosion Resist.Good
Technical Data Sheet
CNC Machining

Aluminum 6060

Aliases: AL 6060 / EN-AW6060 / Al-MgSi

Low StrengthHeat TreatableGood WeldabilityGood Corrosion Resistance

Good corrosion resistance and weldability, highly suitable for cold forming.

Thermal Cond.200 W/m·K
Therm. Expans.23.4 µm/m·°C
Yield Str.~200 MPa
Density2.7 g/cm³
Corrosion Resist.Excellent
Technical Data Sheet
CNC Machining

Aluminum 6082

Aliases: AL 6082

Good Thermal ConductivityHigh Stress Corrosion Cracking Resistance

Typically rolled and extruded, it has moderate strength, excellent weldability, and thermal conductivity.

Thermal Cond.170 W/m·K
Therm. Expans.24.0 µm/m·°C
Yield Str.~200 MPa
Density2.7 g/cm³
Corrosion Resist.Good
Technical Data Sheet
CNC Machining

Aluminum 5083

Aliases: AL 5083 / Aluminum 3.3547 / EN AW-5083

Moderate StrengthGood Machinability

A moderately strong rolled plate widely used in the capital goods industry.

Thermal Cond.120 W/m·K
Therm. Expans.23.8 µm/m·°C
Yield Str.~200 MPa
Density2.7 g/cm³
Corrosion Resist.Excellent
Technical Data Sheet

Steel8

CNC Machining

SKD11

Aliases: KD11 Die Steel / Cr12MoV

Ultra-high Wear ResistanceExcellent HardenabilityGood Heat Treatment StabilityHigh Compressive Strength

Suitable for blanking and forming dies, strengthened by chromium, molybdenum, and vanadium carbides.

Thermal Cond.20 W/m·K
Therm. Expans.10.5 µm/m·°C
Yield Str.~800 MPa
Density7.8 g/cm³
Corrosion Resist.Poor
Technical Data Sheet
CNC Machining

S136

Aliases: S136 Die Steel / High Corrosion-resistant Mirror Plastic Die Steel

Excellent Corrosion ResistanceUltra-mirror PolishabilityOutstanding Wear ResistanceLow Heat Treatment Distortion

Excellent corrosion resistance, comparable to 420 stainless steel, ultra-mirror polishability.

Thermal Cond.16 W/m·K
Therm. Expans.10.6 µm/m·°C
Yield Str.~800 MPa
Density7.8 g/cm³
Corrosion Resist.Excellent
Technical Data Sheet
CNC Machining

SKD61

Aliases: SKD61

High-temperature StrengthThermal Fatigue ResistanceTemper Resistance

Maintains high hardness at 600°C, resistant to hot and cold cycling cracking.

Thermal Cond.24 W/m·K
Therm. Expans.11.0 µm/m·°C
Yield Str.~800 MPa
Density7.8 g/cm³
Corrosion Resist.Fair
Technical Data Sheet
CNC Machining

40Cr

Aliases: 40Cr / Chrome Molybdenum Alloy Steel

High Strength and ToughnessGood Hardenability

Tensile strength ≥980MPa after quenching and tempering, chromium improves heat treatment effects.

Thermal Cond.42 W/m·K
Therm. Expans.11.2 µm/m·°C
Yield Str.~800 MPa
Density7.8 g/cm³
Corrosion Resist.Poor
Technical Data Sheet
CNC Machining

NAK80

Aliases: NAK80

Ultra-mirror PolishabilityHigh Wear Resistance

Can be polished to #15000 and above, supplied pre-hardened without need for heat treatment.

Thermal Cond.41 W/m·K
Therm. Expans.11.9 µm/m·°C
Yield Str.~800 MPa
Density7.8 g/cm³
Corrosion Resist.Good
Technical Data Sheet
CNC Machining

718 Die Steel

Aliases: 718 Die Steel

MachinabilityHigh Polishability

Direct machining in pre-hardened state, nickel improves overall performance.

Thermal Cond.29 W/m·K
Therm. Expans.12.0 µm/m·°C
Yield Str.~800 MPa
Density7.8 g/cm³
Corrosion Resist.Good
Technical Data Sheet
CNC Machining

S50C

Aliases: No. 50 Steel

High HardnessWear Resistance

Suitable for heat treatment strengthening, for parts bearing large loads.

Thermal Cond.50 W/m·K
Therm. Expans.11.5 µm/m·°C
Yield Str.N/A
DensityN/A
Corrosion Resist.Poor
Technical Data Sheet
CNC Machining

S45C

Aliases: No. 45 Steel

High Tensile StrengthLow Ductility

Low thermal conductivity forged carbon steel, tensile strength up to 630MPa.

Thermal Cond.50 W/m·K
Therm. Expans.11.5 µm/m·°C
Yield Str.N/A
DensityN/A
Corrosion Resist.Poor
Technical Data Sheet

Stainless Steel5

CNC Machining

2205

Aliases: 2205 Duplex Stainless Steel

High StrengthExcellent Corrosion Resistance

Yield strength is about twice that of 304, resistant to seawater and acidic media.

Thermal Cond.15 W/m·K
Therm. Expans.13.0 µm/m·°C
Yield Str.~450 MPa
Density7.9 g/cm³
Corrosion Resist.Outstanding
Technical Data Sheet
CNC Machining

Cr12

Aliases: Cr12 Die Steel

Ultra-high Wear ResistanceHigh Compressive Strength

High chromium carbide strengthened, uniform hardening of large sections.

Thermal Cond.20 W/m·K
Therm. Expans.10.5 µm/m·°C
Yield Str.~800 MPa
Density7.8 g/cm³
Corrosion Resist.Fair
Technical Data Sheet
CNC Machining

SUS 316L

Aliases: 316L Stainless Steel

RigidityCorrosion Resistance

High ductility and toughness, excellent corrosion resistance.

Thermal Cond.16.3 W/m·K
Therm. Expans.16.0 µm/m·°C
Yield Str.~450 MPa
Density7.9 g/cm³
Corrosion Resist.Excellent
Technical Data Sheet
CNC Machining

17-4PH

Aliases: 17-4PH / 1.4542

RigidityChemical Resistance

Performance can be improved by heat treatment (annealing).

Thermal Cond.18.4 W/m·K
Therm. Expans.10.8 µm/m·°C
Yield Str.~450 MPa
Density7.9 g/cm³
Corrosion Resist.Good
Technical Data Sheet
CNC Machining

SUS 304

Aliases: 304 Stainless Steel

Corrosion ResistanceGood Machinability

Low thermal conductivity, excellent corrosion resistance.

Thermal Cond.16.2 W/m·K
Therm. Expans.17.2 µm/m·°C
Yield Str.~450 MPa
Density7.9 g/cm³
Corrosion Resist.Good
Technical Data Sheet

Copper & Brass6

CNC Machining

H96

Aliases: H96 Brass / Purple Copper

Electrical & Thermal ConductivityExcellent Corrosion Resistance

Close to pure copper, conductivity ≥90% IACS.

Thermal Cond.350 W/m·K
Therm. Expans.17.0 µm/m·°C
Yield Str.~150 MPa
Density8.5 g/cm³
Corrosion Resist.Excellent
Technical Data Sheet
CNC Machining

Beryllium Copper

Aliases: Beryllium Copper / Beryllium Bronze

Ultra-high StrengthNon-magnetic & Spark Resistant

Tensile strength up to 1400MPa after aging.

Thermal Cond.105 W/m·K
Therm. Expans.17.0 µm/m·°C
Yield Str.~150 MPa
Density8.5 g/cm³
Corrosion Resist.Good
Technical Data Sheet
CNC Machining

H59

Aliases: H59 Brass

High StrengthGood Economy

Tensile strength ≥350MPa, excellent cold workability.

Thermal Cond.116 W/m·K
Therm. Expans.20.5 µm/m·°C
Yield Str.~150 MPa
Density8.5 g/cm³
Corrosion Resist.Fair
Technical Data Sheet
CNC Machining

Lead Brass

Aliases: Hpb58-3 / 2.0401

ThermoformabilityFree-cutting

Excellent thermoformability, easy to weld or braze.

Thermal Cond.116 W/m·K
Therm. Expans.20.5 µm/m·°C
Yield Str.~150 MPa
Density8.5 g/cm³
Corrosion Resist.Fair
Technical Data Sheet
CNC Machining

Chromium Zirconium Copper

Aliases: CuCr1Zr

High Thermal Cond.High Strength

Excellent balance of thermal conductivity and high-temperature strength.

Thermal Cond.~320 W/m·K
Therm. Expans.~17 µm/m·°C
Yield Str.~400 MPa
Density8.9 g/cm³
Corrosion Resist.Moderate
Technical Data Sheet
CNC Machining

Pure Copper

Aliases: Pure Cu

Ultra-high Thermal Cond.Excellent Electrical Cond.

Extremely high thermal conductivity, but soft material makes it gummy during CNC machining.

Thermal Cond.~390 W/m·K
Therm. Expans.~16.5 µm/m·°C
Yield Str.~150 MPa
Density8.94 g/cm³
Corrosion Resist.Poor
Technical Data Sheet

Titanium2

CNC Machining

TC4

Aliases: TC4 Titanium Alloy

Ultra-high Specific StrengthBiocompatibility

Excellent corrosion resistance, preferred material for medical implants.

Thermal Cond.6.7 W/m·K
Therm. Expans.8.6 µm/m·°C
Yield Str.~800 MPa
Density4.5 g/cm³
Corrosion Resist.Excellent
Technical Data Sheet
CNC Machining

TA2

Aliases: TA2 Titanium Alloy

Excellent Specific StrengthCorrosion Resistance

Low thermal stress, good corrosion resistance.

Thermal Cond.16.4 W/m·K
Therm. Expans.8.6 µm/m·°C
Yield Str.~800 MPa
Density4.5 g/cm³
Corrosion Resist.Outstanding
Technical Data Sheet
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