FabDigit

10B38 vs EN41B and 2 more: properties

10B38EN41B38CrMoAl38MnVS6

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

205 GPa29.7 Msi
205 GPa29.7 Msi
210 GPa30.5 Msi
210 GPa30.5 Msi

Shear Modulus

80 GPa11.6 Msi
80 GPa11.6 Msi
81 GPa11.7 Msi
80 GPa11.6 Msi

Tensile Strength (Ultimate)

570 MPa82.7 ksi
925 MPa134 ksi
1,030 MPa149 ksi
900 MPa131 ksi

Yield Strength (0.2% offset)

320 MPa46.4 ksi
740 MPa107 ksi
880 MPa128 ksi
600 MPa87 ksi

Elongation at Break

20%
15%
16%
14%

Reduction in Area

45%
45%
55%
30%

Compressive Strength

320 MPa46.4 ksi
760 MPa110 ksi
900 MPa131 ksi
620 MPa89.9 ksi

Shear Strength

380 MPa55.1 ksi
560 MPa81.2 ksi
620 MPa89.9 ksi
560 MPa81.2 ksi

Fatigue Strength (Endurance Limit)

260 MPa37.7 ksi
450 MPa65.3 ksi
480 MPa69.6 ksi
400 MPa58 ksi

Charpy V-Notch Impact (RT)

40 J29.5 ft·lbf
40 J29.5 ft·lbf
80 J59 ft·lbf
25 J18.4 ft·lbf

Hardness, Brinell

163 HB
269 HB
310 HB
270 HB

Hardness, Rockwell B

85 HRB

Hardness, Vickers

170 HV
285 HV
325 HV
285 HV

Fracture Toughness (K_IC)

70 MPa·√m63.7 ksi·√in
70 MPa·√m63.7 ksi·√in
55 MPa·√m50.1 ksi·√in

Hardness, Rockwell C

27 HRC
32 HRC
27 HRC

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

Physical

Density and transition temperatures.

Density

7.85 g/cm³0.28 lb/in³
7.8 g/cm³0.28 lb/in³
7.8 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
1,450°C2,642 °F
1,420°C2,588 °F

Liquidus Temperature

1,500°C2,732 °F
1,480°C2,696 °F
1,500°C2,732 °F
1,490°C2,714 °F

Thermal

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

Thermal Conductivity

49 W/m·K28.3 BTU/hr·ft·°F
40 W/m·K23.1 BTU/hr·ft·°F
36 W/m·K20.8 BTU/hr·ft·°F
44 W/m·K25.4 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

11.7 µm/m·K6.5 µin/in·°F
12 µm/m·K6.7 µin/in·°F
11.8 µm/m·K6.6 µin/in·°F
12.3 µm/m·K6.8 µin/in·°F

Latent Heat of Fusion

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

Max Service Temperature (continuous)

400°C752 °F
450°C842 °F
500°C932 °F
350°C662 °F

Min Service Temperature

-20°C-4 °F
-40°C-40 °F
-40°C-40 °F
-20°C-4 °F

Electrical

Conductivity and insulation.

Electrical Conductivity

10 % IACS
7.8 % IACS
8 % IACS

Electrical Resistivity

1.7×10⁻⁷ Ω·m6.69 µΩ·in
2.2×10⁻⁷ Ω·m8.66 µΩ·in
2.2×10⁻⁷ Ω·m8.66 µΩ·in
2.1×10⁻⁷ Ω·m8.27 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-0.61 V
-0.6 V

Corrosion Resistance

10 / 100
12 / 100
16 / 100
11 / 100

Manufacturability

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

Machinability

58 / 100
50 / 100
40 / 100
58 / 100

Machinability Rating (AISI 1212 = 100 %)

62%
50%
45%
60%

Weldability

55 / 100
20 / 100
18 / 100
30 / 100

Formability (cold)

60 / 100
25 / 100
20 / 100
25 / 100

Brazeability / Solderability

65 / 100
40 / 100

Polishability

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

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

25 MJ/kg10,748 BTU/lb
34 MJ/kg14,617 BTU/lb
34 MJ/kg14,617 BTU/lb
25 MJ/kg10,748 BTU/lb

Embodied Carbon (primary production)

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

Embodied Water

45 L/kg5.4 gal/lb
60 L/kg7.2 gal/lb
60 L/kg7.2 gal/lb
45 L/kg5.4 gal/lb

Typical Recycled Content

30%
30%
25%
25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

73 kN·m/kg
119 kN·m/kg
132 kN·m/kg
115 kN·m/kg

Specific Stiffness (E / density)

26.1 MN·m/kg
26.3 MN·m/kg
26.9 MN·m/kg
26.8 MN·m/kg

Modulus of Resilience

250 kJ/m³
1,336 kJ/m³
1,844 kJ/m³
857 kJ/m³

Thermal Diffusivity

13.3 mm²/s
11.1 mm²/s
10 mm²/s
11.9 mm²/s

Thermal Shock Resistance Index

12
15
15
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 scaleEN41B38CrMoAl38MnVS610B38

Manufacturing and finishing

Capability10B38EN41B38CrMoAl38MnVS6
Default conditionHRQ&TQ&TAs Forged
Relative cost$$ Standard$$ Standard$$ Standard$$ 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 10B38 and EN41B 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.