FabDigitFabDigit

Steel A182 F5a vs AR500

Steel · grade comparison

Steel A182 F5a and AR500 are both steel grades. AR500 is the stronger of the two: yield strength 1,350 MPa (196 ksi) against 480 MPa (69.6 ksi) for A182 F5a, about 181% more; tensile strength follows at 1,650 MPa (239 ksi) vs 690 MPa (100 ksi). In exchange, A182 F5a is the more ductile: elongation 24% versus 9% for AR500, and AR500 is harder (500 HB vs 215 HB). A182 F5a runs hotter in service (600°C vs 250°C continuous) and AR500 conducts heat better (40 W/m·K vs 36 W/m·K). On the shop floor, A182 F5a machines more easily (fair vs not recommended) and A182 F5a sits in a lower cost tier (standard, $$) than AR500 (high, $$$$).

A182 F5aChoose it when the part is bent, formed or impact-loaded, or when the part sees heat.

AR500Choose it when strength drives the design.

A182 F5a vs AR500: properties

A182 F5aAR500

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

207 GPa30 Msi
205 GPa29.7 Msi

Tensile Strength (Ultimate)

690 MPa100 ksi
1,650 MPa239 ksi

Yield Strength (0.2% offset)

480 MPa69.6 ksi
1,350 MPa196 ksi

Elongation at Break

24%
9%

Reduction in Area

55%
30%

Compressive Strength

480 MPa69.6 ksi
1,400 MPa203 ksi

Shear Strength

450 MPa65.3 ksi
1,000 MPa145 ksi

Fatigue Strength (Endurance Limit)

330 MPa47.9 ksi
700 MPa102 ksi

Fracture Toughness (K_IC)

90 MPa·√m81.9 ksi·√in
50 MPa·√m45.5 ksi·√in

Charpy V-Notch Impact (RT)

40 J29.5 ft·lbf
35 J25.8 ft·lbf

Hardness, Brinell

215 HB
500 HB

Hardness, Rockwell C

19 HRC
50 HRC

Hardness, Vickers

225 HV
525 HV

Same in both: Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Density

7.78 g/cm³0.28 lb/in³
7.85 g/cm³0.28 lb/in³

Melting Point (Solidus)

1,450°C2,642 °F
1,420°C2,588 °F

Liquidus Temperature

1,505°C2,741 °F
1,500°C2,732 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

36 W/m·K20.8 BTU/hr·ft·°F
40 W/m·K23.1 BTU/hr·ft·°F

Specific Heat Capacity

460 J/kg·K0.11 BTU/lb·°F
470 J/kg·K0.11 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

11.8 µm/m·K6.6 µin/in·°F
12 µm/m·K6.7 µin/in·°F

Max Service Temperature (continuous)

600°C1,112 °F
250°C482 °F

Min Service Temperature

-29°C-20 °F
-40°C-40 °F

Same in both: Latent Heat of Fusion 270 J/g116 BTU/lb

Electrical

Conductivity and insulation.

Electrical Resistivity

5.5×10⁻⁷ Ω·m21.7 µΩ·in
2.3×10⁻⁷ Ω·m9.06 µΩ·in

Electrical Conductivity

—
7.5 % IACS

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

25 / 100
13 / 100

Galvanic Potential (seawater, vs SCE)

—
-0.62 V

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

48 / 100
12 / 100

Machinability Rating (AISI 1212 = 100 %)

50%
10%

Weldability

40 / 100
45 / 100

Formability (cold)

30 / 100
15 / 100

Brazeability / Solderability

45 / 100
—

Same in both: Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

32 MJ/kg13,758 BTU/lb
30 MJ/kg12,898 BTU/lb

Embodied Carbon (primary production)

2.4 kg CO₂/kg
2.3 kg CO₂/kg

Embodied Water

60 L/kg7.2 gal/lb
55 L/kg6.6 gal/lb

Typical Recycled Content

30%
25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

89 kN·m/kg
210 kN·m/kg

Specific Stiffness (E / density)

26.6 MN·m/kg
26.1 MN·m/kg

Modulus of Resilience

557 kJ/m³
4,445 kJ/m³

Thermal Diffusivity

10.1 mm²/s
10.8 mm²/s

Thermal Shock Resistance Index

10
27

Strength versus weight

Yield strength against density for every steel grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

2005001,0002,0007.588.5Density (g/cm³)Yield strength (MPa) — log scaleAR500A182 F5a

Manufacturing and finishing

CapabilityA182 F5aAR500
CNC machining—Yes
Sheet metal—Yes
Default condition—Q&T
Relative cost$$ Standard$$$$ High
Min. machined wall—0.8 mm
Best machined surface—Ra 1.6 µm
AlCrN—Yes
AlTiN—Yes
Black Oxide—Yes
CVD Al2O3—Yes
CVD TiCN—Yes
CVD TiN—Yes
Cerakote—Yes
Chrome Plating—Yes
CrN—Yes
DLC—Yes
E-Coating—Yes
HVOF Coating—Yes
Hot-Dip Galvanizing—Yes
MoS2—Yes
Multilayer CVD—Yes
Nickel Plating—Yes
PTFE Coating—Yes
Painting—Yes

They share 9 finishes: Copper Plating, Electroless Nickel (EN), Epoxy Coating, Gold Plating, Hard Chrome Plating, Manganese Phosphate, Plasma Spray, Silver Plating, Zinc Phosphate.

A182 F5a vs AR500 — frequently asked

Is AR500 stronger than A182 F5a?

Yes. AR500 has a typical yield strength of 1,350 MPa (196 ksi) against 480 MPa (69.6 ksi) for A182 F5a — about 181% more. Tensile strength is 1,650 MPa (239 ksi) vs 690 MPa (100 ksi).

Which is cheaper, A182 F5a or AR500?

A182 F5a is the lower-cost material: it sits in the standard tier ($$) while AR500 is high ($$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which is easier to machine, A182 F5a or AR500?

A182 F5a. Its machinability rates fair (48/100) against not recommended (12/100) for AR500; for welding the order is AR500 first (fair, 45/100) then A182 F5a (fair, 40/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in A182 F5a and AR500 side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.

Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.