FabDigitFabDigit

Steel A414 vs AR500

Steel · grade comparison

Steel A414 and AR500 are both steel grades. AR500 is the stronger of the two: yield strength 1,350 MPa (196 ksi) against 255 MPa (37 ksi) for A414, about 5.3 times as much; tensile strength follows at 1,650 MPa (239 ksi) vs 425 MPa (61.6 ksi). In exchange, A414 is the more ductile: elongation 28% versus 9% for AR500, and AR500 is harder (500 HB vs 125 HB). A414 runs hotter in service (425°C vs 250°C continuous) and A414 conducts heat better (51 W/m·K vs 40 W/m·K). On the shop floor, A414 machines more easily (good vs not recommended), A414 welds better (excellent vs fair), and A414 sits in a lower cost tier (budget, $) than AR500 (high, $$$$).

A414Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

AR500Choose it when strength drives the design.

A414 vs AR500: properties

A414AR500

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

200 GPa29 Msi
205 GPa29.7 Msi

Shear Modulus

79 GPa11.5 Msi
80 GPa11.6 Msi

Tensile Strength (Ultimate)

425 MPa61.6 ksi
1,650 MPa239 ksi

Yield Strength (0.2% offset)

255 MPa37 ksi
1,350 MPa196 ksi

Elongation at Break

28%
9%

Reduction in Area

50%
30%

Compressive Strength

295 MPa42.8 ksi
1,400 MPa203 ksi

Shear Strength

285 MPa41.3 ksi
1,000 MPa145 ksi

Fatigue Strength (Endurance Limit)

195 MPa28.3 ksi
700 MPa102 ksi

Fracture Toughness (K_IC)

110 MPa·√m100 ksi·√in
50 MPa·√m45.5 ksi·√in

Charpy V-Notch Impact (RT)

50 J36.9 ft·lbf
35 J25.8 ft·lbf

Hardness, Brinell

125 HB
500 HB

Hardness, Rockwell B

71 HRB
—

Hardness, Vickers

126 HV
525 HV

Hardness, Rockwell C

—
50 HRC

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

Physical

Density and transition temperatures.

Melting Point (Solidus)

1,485°C2,705 °F
1,420°C2,588 °F

Liquidus Temperature

1,510°C2,750 °F
1,500°C2,732 °F

Same in both: Density 7.85 g/cm³0.28 lb/in³

Thermal

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

Thermal Conductivity

51 W/m·K29.5 BTU/hr·ft·°F
40 W/m·K23.1 BTU/hr·ft·°F

Max Service Temperature (continuous)

425°C797 °F
250°C482 °F

Min Service Temperature

-20°C-4 °F
-40°C-40 °F

Same in both: Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 12 µm/m·K6.7 µin/in·°F · Latent Heat of Fusion 270 J/g116 BTU/lb

Electrical

Conductivity and insulation.

Electrical Conductivity

10.5 % IACS
7.5 % IACS

Electrical Resistivity

1.6×10⁻⁷ Ω·m6.3 µΩ·in
2.3×10⁻⁷ Ω·m9.06 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

10 / 100
13 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.62 V

Manufacturability

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

Machinability

65 / 100
12 / 100

Machinability Rating (AISI 1212 = 100 %)

60%
10%

Weldability

90 / 100
45 / 100

Formability (cold)

88 / 100
15 / 100

Castability

40 / 100
—

Brazeability / Solderability

70 / 100
—

Polishability

50 / 100
55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

24 MJ/kg10,318 BTU/lb
30 MJ/kg12,898 BTU/lb

Embodied Carbon (primary production)

1.9 kg CO₂/kg
2.3 kg CO₂/kg

Embodied Water

40 L/kg4.8 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)

54 kN·m/kg
210 kN·m/kg

Specific Stiffness (E / density)

25.5 MN·m/kg
26.1 MN·m/kg

Modulus of Resilience

163 kJ/m³
4,445 kJ/m³

Thermal Diffusivity

13.8 mm²/s
10.8 mm²/s

Thermal Shock Resistance Index

9
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 scaleAR500A414

Manufacturing and finishing

CapabilityA414AR500
CNC machining—Yes
Sheet metal—Yes
Default condition—Q&T
Relative cost$ Budget$$$$ 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.

A414 vs AR500 — frequently asked

Is AR500 stronger than A414?

Yes. AR500 has a typical yield strength of 1,350 MPa (196 ksi) against 255 MPa (37 ksi) for A414 — about 5.3 times as much. Tensile strength is 1,650 MPa (239 ksi) vs 425 MPa (61.6 ksi).

Which is cheaper, A414 or AR500?

A414 is the lower-cost material: it sits in the budget 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, A414 or AR500?

A414. Its machinability rates good (65/100) against not recommended (12/100) for AR500; for welding the order is A414 first (excellent, 90/100) then AR500 (fair, 45/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in A414 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.