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Steel AR500 vs En16

Steel · grade comparison

Steel AR500 and En16 are both steel grades. AR500 is the stronger of the two: yield strength 1,350 MPa (196 ksi) against 700 MPa (102 ksi) for En16, about 93% more; tensile strength follows at 1,650 MPa (239 ksi) vs 925 MPa (134 ksi). In exchange, En16 is the more ductile: elongation 16% versus 9% for AR500, and AR500 is harder (500 HB vs 275 HB). En16 runs hotter in service (400°C vs 250°C continuous). On the shop floor, En16 machines more easily (fair vs not recommended), AR500 welds better (45 vs 35 out of 100), and En16 sits in a lower cost tier (budget, $) than AR500 (high, $$$$).

AR500Choose it when strength drives the design, or when it will be welded.

En16Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.

AR500 vs En16: properties

AR500En16

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

205 GPa29.7 Msi
210 GPa30.5 Msi

Tensile Strength (Ultimate)

1,650 MPa239 ksi
925 MPa134 ksi

Yield Strength (0.2% offset)

1,350 MPa196 ksi
700 MPa102 ksi

Elongation at Break

9%
16%

Reduction in Area

30%
55%

Compressive Strength

1,400 MPa203 ksi
700 MPa102 ksi

Shear Strength

1,000 MPa145 ksi
555 MPa80.5 ksi

Fatigue Strength (Endurance Limit)

700 MPa102 ksi
430 MPa62.4 ksi

Fracture Toughness (K_IC)

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

Charpy V-Notch Impact (RT)

35 J25.8 ft·lbf
45 J33.2 ft·lbf

Hardness, Brinell

500 HB
275 HB

Hardness, Rockwell C

50 HRC
28 HRC

Hardness, Vickers

525 HV
290 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.

Liquidus Temperature

1,500°C2,732 °F
1,490°C2,714 °F

Same in both: Density 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,420°C2,588 °F

Thermal

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

Thermal Conductivity

40 W/m·K23.1 BTU/hr·ft·°F
42 W/m·K24.3 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

12 µm/m·K6.7 µin/in·°F
12.3 µm/m·K6.8 µin/in·°F

Latent Heat of Fusion

270 J/g116 BTU/lb
250 J/g107 BTU/lb

Max Service Temperature (continuous)

250°C482 °F
400°C752 °F

Same in both: Specific Heat Capacity 470 J/kg·K0.11 BTU/lb·°F · Min Service Temperature -40°C-40 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

7.5 % IACS
8 % IACS

Electrical Resistivity

2.3×10⁻⁷ Ω·m9.06 µΩ·in
2.2×10⁻⁷ Ω·m8.66 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.62 V
-0.6 V

Corrosion Resistance

13 / 100
12 / 100

Manufacturability

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

Machinability

12 / 100
50 / 100

Machinability Rating (AISI 1212 = 100 %)

10%
55%

Weldability

45 / 100
35 / 100

Formability (cold)

15 / 100
30 / 100

Polishability

55 / 100
65 / 100

Brazeability / Solderability

—
50 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

30 MJ/kg12,898 BTU/lb
29 MJ/kg12,468 BTU/lb

Embodied Water

55 L/kg6.6 gal/lb
50 L/kg6 gal/lb

Typical Recycled Content

25%
30%

Same in both: Embodied Carbon (primary production) 2.3 kg CO₂/kg

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

210 kN·m/kg
118 kN·m/kg

Specific Stiffness (E / density)

26.1 MN·m/kg
26.8 MN·m/kg

Modulus of Resilience

4,445 kJ/m³
1,167 kJ/m³

Thermal Diffusivity

10.8 mm²/s
11.4 mm²/s

Thermal Shock Resistance Index

27
15

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 scaleAR500En16

Manufacturing and finishing

CapabilityAR500En16
CNC machiningYes—
Sheet metalYes—
Default conditionQ&T—
Relative cost$$$$ High$ Budget
Min. machined wall0.8 mm—
Best machined surfaceRa 1.6 µm—
AlCrNYes—
AlTiNYes—
Black OxideYes—
CVD Al2O3Yes—
CVD TiCNYes—
CVD TiNYes—
CerakoteYes—
Chrome PlatingYes—
CrNYes—
DLCYes—
E-CoatingYes—
HVOF CoatingYes—
Hot-Dip GalvanizingYes—
MoS2Yes—
Multilayer CVDYes—
Nickel PlatingYes—
PTFE CoatingYes—
PaintingYes—

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

AR500 vs En16 — frequently asked

Is AR500 stronger than En16?

Yes. AR500 has a typical yield strength of 1,350 MPa (196 ksi) against 700 MPa (102 ksi) for En16 — about 93% more. Tensile strength is 1,650 MPa (239 ksi) vs 925 MPa (134 ksi).

Which is cheaper, AR500 or En16?

En16 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, AR500 or En16?

En16. Its machinability rates fair (50/100) against not recommended (12/100) for AR500; for welding the order is AR500 first (fair, 45/100) then En16 (fair, 35/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in AR500 and En16 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.