Vegetable-Tanned Leather BELT
Grade
BELT = oak/hemlock tanned belting leather
Pick for flat transmission belts, packings and heavy technical strapping needing maximum tensile strength and low stretch.
Values for the BELT condition
Other Vegetable-Tanned Leather tempers and conditions
Vegetable-Tanned Leather is listed in 2 conditions; see the grade overview at Vegetable-Tanned Leather.
- TOOL
- BELT
Compare all 2 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
TOOLDefault Tooling / carving leather | Pick for carving, stamping, wet-moulding and structural leathercraft where firm, low-oil hide is needed. | — | 22 | 30 | — | 0.15 W/m·K |
BELTThis page Oak/hemlock tanned belting leather | Pick for flat transmission belts, packings and heavy technical strapping needing maximum tensile strength and low stretch. | — | 30 | 18 | — | 0.18 W/m·K |
What is Vegetable-Tanned Leather BELT?
Vegetable-Tanned Leather BELT is Vegetable-Tanned Leather in the BELT grade — pick for flat transmission belts, packings and heavy technical strapping needing maximum tensile strength and low stretch. Vegetable-Tanned Leather BELT has a tensile strength of 30 MPa (4.35 ksi), stronger than 60% of natural material grades. Elongation at break is 18% and the elastic modulus is 0.4 GPa (0.058 Msi). Vegetable-Tanned Leather BELT has a density of 1 g/cm³ (0.0361 lb/in³), heavier than 79% of natural material grades. TOOL is the default condition FabDigit quotes; BELT is available on request or by drawing note.
Advantages
- Ductile — tolerates forming and impact — 18%, better than 89% of natural material grades
- Conducts heat well — 0.18 W/m·K (0.104 BTU/hr·ft·°F), better than 81% of natural material grades
Limitations
- High embodied carbon — 17 kg CO₂/kg, worse than 98% of natural material grades
- Difficult to machine — 50/100, worse than 91% of natural material grades
- Low stiffness — 0.4 GPa (0.058 Msi), worse than 81% of natural material grades
- Heavy — 1 g/cm³ (0.0361 lb/in³), worse than 79% of natural material grades
Vegetable-Tanned Leather BELT properties
Typical room-temperature values for Vegetable-Tanned Leather BELT; 13 are specific to this condition. Other listed values are Vegetable-Tanned Leather reference data and may not represent this condition. Bars are the position among natural material grades.
Physical2
Vegetable-Tanned Leather BELT has a density of 1 g/cm³ (0.0361 lb/in³), heavier than 79% of natural material grades.
Mechanical6
Vegetable-Tanned Leather BELT has a tensile strength of 30 MPa (4.35 ksi), stronger than 60% of natural material grades. Elongation at break is 18% and the elastic modulus is 0.4 GPa (0.058 Msi).
Thermal5
Vegetable-Tanned Leather BELT is rated for continuous service to 90°C (194 °F). It conducts heat at 0.18 W/m·K (0.104 BTU/hr·ft·°F), better than 81% of natural material grades. Thermal expansion is 60 µm/m·K (33.3 µin/in·°F).
Electrical1
Vegetable-Tanned Leather BELT has an electrical resistivity of 5×10⁷ Ω·m.
Chemical & Environmental1
Corrosion resistance is fair (45/100), better than 53% of natural material grades.
Sustainability4
Producing a kilogram of Vegetable-Tanned Leather BELT takes about 130 MJ of energy and emits 17 kg of CO₂ — more than 98% of natural material grades. Typical recycled content is 0%.
Manufacturability2
Vegetable-Tanned Leather BELT's machinability is fair (50/100, worse than 91% of natural material grades).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with Vegetable-Tanned Leather BELT
Is Vegetable-Tanned Leather easy to machine?
Clicker/steel-rule die cutting, rotary or swivel knife and CO₂ laser all work; laser leaves a dark scorched edge and tannin smoke, so extract fumes and use sharp blades with a poly cutting board.
Can Vegetable-Tanned Leather be welded?
Not weldable — join by stitching, riveting, lacing or contact/PU adhesive after roughing and degreasing the bonding face.
Can Vegetable-Tanned Leather be formed, bent or molded?
Case the leather in water (or 50–60 °C for hard-moulding), form over a male mould and dry under 40 °C; wet-formed parts hold shape but shrink 2–5 % and stiffen markedly.
What surface finishes work on Vegetable-Tanned Leather?
Burnish edges with gum tragacanth/wax and friction, dye with alcohol or water dyes, then seal with oil plus acrylic or wax top-coat; unsealed tannins stain and corrode steel and copper in contact.
Vegetable-Tanned Leather chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| vegetable tannin (bound)quebracho, mimosa, chestnut, oak/hemlock bark | 15 – 30 | 22 |
| fats and oilshigher in hot-stuffed harness/latigo | 2 – 12 | 5 |
| moistureequilibrium at 20 °C / 65 % RH | 10 – 16 | 13 |
| ash / mineral | 0.3 – 2 | 1 |
| collagen (hide protein)dry-basis structural fibre network | ≥ 55 (balance) | — |
Vegetable-Tanned Leather BELT — frequently asked
What is Vegetable-Tanned Leather BELT used for?
Vegetable-Tanned Leather BELT is typically used for belts, tool sheaths, saddlery, industrial belting and mechanical washers. In short: best wet-forming leather; firmest tooling temper; tannins corrode bare steel.
What is the tensile strength of Vegetable-Tanned Leather BELT?
Vegetable-Tanned Leather BELT has a typical tensile strength of 30 MPa (4.35 ksi) — stronger than 60% of natural material grades. Strength varies by condition: see the 2 listed tempers.
Is Vegetable-Tanned Leather BELT easy to machine?
Reasonably — machinability is rated fair (50/100, worse than 91% of natural material grades). Clicker/steel-rule die cutting, rotary or swivel knife and CO₂ laser all work; laser leaves a dark scorched edge and tannin smoke, so extract fumes and use sharp blades with a poly cutting board.
Can Vegetable-Tanned Leather BELT be welded?
Not weldable — join by stitching, riveting, lacing or contact/PU adhesive after roughing and degreasing the bonding face.
What surface finishes work on Vegetable-Tanned Leather BELT?
Burnish edges with gum tragacanth/wax and friction, dye with alcohol or water dyes, then seal with oil plus acrylic or wax top-coat; unsealed tannins stain and corrode steel and copper in contact.
Can Vegetable-Tanned Leather BELT be formed, bent or molded?
Case the leather in water (or 50–60 °C for hard-moulding), form over a male mould and dry under 40 °C; wet-formed parts hold shape but shrink 2–5 % and stiffen markedly.
What is the maximum service temperature of Vegetable-Tanned Leather BELT?
Vegetable-Tanned Leather BELT is rated for continuous use to about 90°C (194 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Sources
- ISO 3376 Leather — Determination of tensile strength and percentage elongation — ISO (2020)
- ISO 3380 Leather — Determination of shrinkage temperature up to 100 °C — ISO (2015)
- Leather: Its Composition and Changes with Time / IULTCS test methods compendium — Society of Leather Technologists and Chemists (2011)
- Hermann Oak & Wickett & Craig vegetable-tanned side specifications — tannery datasheets (2024)
- Granta/CES eco-property data for tanned leather — Ansys Granta (2023)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.