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Split Leather vs Vegetable-Tanned Leather

Natural Material · grade comparison

Split Leather and Vegetable-Tanned Leather are both natural material grades. Vegetable-Tanned Leather is the stronger of the two: tensile strength 22 MPa (3.19 ksi) against 12 MPa (1.74 ksi) for Split Leather, about 83% more. In exchange, Split Leather is the more ductile: elongation 55% versus 30% for Vegetable-Tanned Leather. Vegetable-Tanned Leather is stiffer (0.25 GPa vs 0.1 GPa). On the shop floor, Split Leather machines more easily (excellent vs good).

Split LeatherChoose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

Vegetable-Tanned LeatherChoose it when strength drives the design.

Split Leather vs Vegetable-Tanned Leather: properties

Split LeatherVegetable-Tanned Leather

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

0.1 GPa0.01 Msi
0.25 GPa0.04 Msi

Poisson's Ratio

0.4
0.35

Tensile Strength (Ultimate)

12 MPa1.7 ksi
22 MPa3.2 ksi

Elongation at Break

55%
30%

Compressive Strength

—
10 MPa1.5 ksi

Shear Strength

—
15 MPa2.2 ksi

Physical

Density and transition temperatures.

Density

0.9 g/cm³0.03 lb/in³
0.92 g/cm³0.03 lb/in³

Porosity

50%
45%

Thermal

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

Thermal Conductivity

0.14 W/m·K0.08 BTU/hr·ft·°F
0.15 W/m·K0.09 BTU/hr·ft·°F

Specific Heat Capacity

1,550 J/kg·K0.37 BTU/lb·°F
1,500 J/kg·K0.36 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

—
60 µm/m·K33.3 µin/in·°F

Same in both: Max Service Temperature (continuous) 80°C176 °F · Min Service Temperature -30°C-22 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1×10⁹ Ω·m3.94×10¹⁶ µΩ·in
1×10⁸ Ω·m3.94×10¹⁵ µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

30 / 100
40 / 100

Manufacturability

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

Machinability

88 / 100
60 / 100

Polishability

15 / 100
70 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

120 MJ/kg51,591 BTU/lb
130 MJ/kg55,890 BTU/lb

Embodied Carbon (primary production)

12 kg CO₂/kg
17 kg CO₂/kg

Embodied Water

15,000 L/kg1,797 gal/lb
17,000 L/kg2,037 gal/lb

Same in both: Typical Recycled Content 0%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

13 kN·m/kg
24 kN·m/kg

Specific Stiffness (E / density)

0.1 MN·m/kg
0.3 MN·m/kg

Same in both: Thermal Diffusivity 0.1 mm²/s

Strength versus weight

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

Manufacturing and finishing

CapabilitySplit LeatherVegetable-Tanned Leather
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Split Leather vs Vegetable-Tanned Leather — frequently asked

Is Vegetable-Tanned Leather stronger than Split Leather?

Yes. Vegetable-Tanned Leather has a typical tensile strength of 22 MPa (3.19 ksi) against 12 MPa (1.74 ksi) for Split Leather — about 83% more.

Which is cheaper, Split Leather or Vegetable-Tanned Leather?

Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which is easier to machine, Split Leather or Vegetable-Tanned Leather?

Split Leather. Its machinability rates excellent (88/100) against good (60/100) for Vegetable-Tanned Leather.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Split Leather and Vegetable-Tanned Leather 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.