FabDigit

EN41B vs AR400 and 2 more: properties

EN41BAR400AR500A514

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

925 MPa134 ksi
1,250 MPa181 ksi
1,650 MPa239 ksi
800 MPa116 ksi

Yield Strength (0.2% offset)

740 MPa107 ksi
1,050 MPa152 ksi
1,350 MPa196 ksi
760 MPa110 ksi

Elongation at Break

15%
11%
9%
19%

Reduction in Area

45%
40%
30%
50%

Compressive Strength

760 MPa110 ksi
1,100 MPa160 ksi
1,400 MPa203 ksi
760 MPa110 ksi

Shear Strength

560 MPa81.2 ksi
780 MPa113 ksi
1,000 MPa145 ksi
480 MPa69.6 ksi

Fatigue Strength (Endurance Limit)

450 MPa65.3 ksi
520 MPa75.4 ksi
700 MPa102 ksi
380 MPa55.1 ksi

Fracture Toughness (K_IC)

70 MPa·√m63.7 ksi·√in
70 MPa·√m63.7 ksi·√in
50 MPa·√m45.5 ksi·√in
120 MPa·√m109 ksi·√in

Charpy V-Notch Impact (RT)

40 J29.5 ft·lbf
30 J22.1 ft·lbf
35 J25.8 ft·lbf
75 J55.3 ft·lbf

Hardness, Brinell

269 HB
400 HB
500 HB
250 HB

Hardness, Rockwell C

27 HRC
43 HRC
50 HRC
24 HRC

Hardness, Vickers

285 HV
420 HV
525 HV
262 HV

Hardness, Rockwell B

100 HRB

Same in both: Elastic (Young's) Modulus 205 GPa29.7 Msi · Shear Modulus 80 GPa11.6 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

1,420°C2,588 °F
1,420°C2,588 °F
1,420°C2,588 °F
1,425°C2,597 °F

Liquidus Temperature

1,480°C2,696 °F
1,500°C2,732 °F
1,500°C2,732 °F
1,510°C2,750 °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
40 W/m·K23.1 BTU/hr·ft·°F
42 W/m·K24.3 BTU/hr·ft·°F

Specific Heat Capacity

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

Latent Heat of Fusion

260 J/g112 BTU/lb
250 J/g107 BTU/lb
270 J/g116 BTU/lb
250 J/g107 BTU/lb

Max Service Temperature (continuous)

450°C842 °F
250°C482 °F
250°C482 °F
400°C752 °F

Min Service Temperature

-40°C-40 °F
-20°C-4 °F
-40°C-40 °F
-45°C-49 °F

Same in both: Thermal Expansion (CTE, 20–100 °C) 12 µm/m·K6.7 µin/in·°F

Electrical

Conductivity and insulation.

Electrical Resistivity

2.2×10⁻⁷ Ω·m8.66 µΩ·in
2.2×10⁻⁷ Ω·m8.66 µΩ·in
2.3×10⁻⁷ Ω·m9.06 µΩ·in
2.4×10⁻⁷ Ω·m9.45 µΩ·in

Electrical Conductivity

8 % IACS
7.5 % IACS
7 % IACS

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

12 / 100
12 / 100
13 / 100
16 / 100

Galvanic Potential (seawater, vs SCE)

-0.62 V
-0.6 V

Manufacturability

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

Machinability

50 / 100
22 / 100
12 / 100
38 / 100

Machinability Rating (AISI 1212 = 100 %)

50%
20%
10%
40%

Weldability

20 / 100
55 / 100
45 / 100
55 / 100

Formability (cold)

25 / 100
25 / 100
15 / 100
30 / 100

Polishability

70 / 100
55 / 100
55 / 100
50 / 100

Brazeability / Solderability

20 / 100
40 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

34 MJ/kg14,617 BTU/lb
28 MJ/kg12,038 BTU/lb
30 MJ/kg12,898 BTU/lb
31 MJ/kg13,328 BTU/lb

Embodied Carbon (primary production)

2.3 kg CO₂/kg
2.3 kg CO₂/kg
2.3 kg CO₂/kg
2.4 kg CO₂/kg

Embodied Water

60 L/kg7.2 gal/lb
45 L/kg5.4 gal/lb
55 L/kg6.6 gal/lb
45 L/kg5.4 gal/lb

Typical Recycled Content

30%
25%
25%
30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

119 kN·m/kg
159 kN·m/kg
210 kN·m/kg
102 kN·m/kg

Specific Stiffness (E / density)

26.3 MN·m/kg
26.1 MN·m/kg
26.1 MN·m/kg
26.1 MN·m/kg

Modulus of Resilience

1,336 kJ/m³
2,689 kJ/m³
4,445 kJ/m³
1,409 kJ/m³

Thermal Diffusivity

11.1 mm²/s
11.4 mm²/s
10.8 mm²/s
11.4 mm²/s

Thermal Shock Resistance Index

15
21
27
14

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 scaleAR400AR500A514EN41B

Manufacturing and finishing

CapabilityEN41BAR400AR500A514
Default conditionQ&TQ&TQ&TQ&T
Relative cost$$ Standard$$$ Premium$$$$ High$$ Standard
Min. machined wall0.8 mm0.8 mm0.8 mm0.8 mm
Best machined surfaceRa 1.6 µmRa 1.6 µmRa 1.6 µmRa 1.6 µm

Both are offered for CNC machining and Sheet metal. Both take the same 38 finishes: AlCrN, AlTiN, Black Oxide, CVD Al2O3, CVD TiCN, CVD TiN, Cerakote, Chrome Plating, Copper Plating, CrN, DLC, E-Coating and 26 more.

Ready to make it?

Upload a CAD file and FabDigit prices the part in EN41B and AR400 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.