Difference between revisions of "Materials Database"

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(AR500 Steel)
(Aluminum 6061-T6)
Line 97: Line 97:
 
*Tends to "ablate" and may take gashes when hit directly by weapons
 
*Tends to "ablate" and may take gashes when hit directly by weapons
 
*Easy to machine and relatively cheap
 
*Easy to machine and relatively cheap
 +
 +
== Aluminum 7075-T6 ==
 +
{| border="1" cellspacing="1" cellpadding="1" style="width: 500px;"
 +
|-
 +
| Type
 +
| Aluminum Alloy
 +
|-
 +
| Modulus of Elasticity
 +
|  10^7 psi
 +
|-
 +
|-
 +
| Shear Modulus
 +
|  3800 ksi
 +
|-
 +
|-
 +
| Poisson's Ratio
 +
|  0.33
 +
|-
 +
|-
 +
| Density
 +
|  0.0984 lb/in^3
 +
|-
 +
| Ultimate Tensile Strength
 +
| 45 ksi
 +
|-
 +
| Tensile Yield Strength
 +
| 39 ksi
 +
|-
 +
|-
 +
| Fracture Toughness
 +
| 26.4 ksi-in½
 +
|-
 +
| Brinell Hardness
 +
| 93 HB
 +
|-
 +
| Rockwell Hardness
 +
| B52
 +
|-
 +
| Elongation at Break
 +
| 10%
 +
|-
 +
|-
 +
| Machinability (Vs. 1112 Steel)
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| 270%
 +
|-
 +
| Familiar Sellers
 +
| McMaster Carr, Midwest Steel Supply, SendCutSend
 +
|-
 +
|}
 +
Material Description:
  
 
== Data Sources ==
 
== Data Sources ==
 
*AR500 Steel: SendCutSend, McMaster Carr, Steel Warehouse
 
*AR500 Steel: SendCutSend, McMaster Carr, Steel Warehouse
 
*Al 6061-T6: SendCutSend, Matweb, Machining Doctor
 
*Al 6061-T6: SendCutSend, Matweb, Machining Doctor

Revision as of 08:07, 14 December 2022

AR500 Steel

Type Carbon Steel
Modulus of Elasticity 30 x 10^6 psi
Poisson's Ratio 0.29
Density 0.29 lb/in^3
Ultimate Tensile Strength 225 ksi
Tensile Yield Strength 200 ksi
Brinell Hardness 450 HB
Rockwell Hardness C48
Elongation at Break 12%
Familiar Sellers McMaster Carr, MakeItRingTargets, Alro Steel, SendCutSend

Material Description:

  • High strength, ultra wear resistant steel used in body armor and shooting targets
  • Hardened steel is difficult to machine, is typically only used for Waterjet parts
  • Typically used for weapons due to it's high strength, toughness, and relatively high hardness
  • Anecdotal experience from builders says that AR500 typically bends before it fractures
  • Will rust over time when wet or exposed to moist air

Aluminum 6061-T6

Type Aluminum Alloy
Modulus of Elasticity 10^7 psi
Shear Modulus 3800 ksi
Poisson's Ratio 0.33
Density 0.0984 lb/in^3
Ultimate Tensile Strength 45 ksi
Tensile Yield Strength 39 ksi
Fracture Toughness 26.4 ksi-in½
Brinell Hardness 93 HB
Rockwell Hardness B52
Elongation at Break 10%
Machinability (Vs. 1112 Steel) 270%
Familiar Sellers McMaster Carr, Midwest Steel Supply, SendCutSend

Material Description:

  • Lightweight aluminum alloy that comes already pre-heat-treated T6 temper which gives it its strength
  • Beware of tempers T4 and O which are weaker than 6061-T6
  • Typically used for frame rails, plates, pulleys, and armor for some bots
  • Tends to fail in bending before fracturing
  • Tends to "ablate" and may take gashes when hit directly by weapons
  • Easy to machine and relatively cheap

Aluminum 7075-T6

Type Aluminum Alloy
Modulus of Elasticity 10^7 psi
Shear Modulus 3800 ksi
Poisson's Ratio 0.33
Density 0.0984 lb/in^3
Ultimate Tensile Strength 45 ksi
Tensile Yield Strength 39 ksi
Fracture Toughness 26.4 ksi-in½
Brinell Hardness 93 HB
Rockwell Hardness B52
Elongation at Break 10%
Machinability (Vs. 1112 Steel) 270%
Familiar Sellers McMaster Carr, Midwest Steel Supply, SendCutSend

Material Description:

Data Sources

  • AR500 Steel: SendCutSend, McMaster Carr, Steel Warehouse
  • Al 6061-T6: SendCutSend, Matweb, Machining Doctor