American Elm

Scientific name: Ulmus minor sarniensis

Geographic origin: East Canada, Mid West United States

Description

• Sapwood: Greyish white
• Heartwood: Light brown
• Fibre: Straight sometimes intertwined. Reddish streaks
• Grain: Medium
• Characteristic defects: Tendency to bend

Capacity of being impregnated

• Heartwood: Impregnable medium considered not resistant to fungi

Mechanization

• Sawn: Easy
• Drying: "chafing" can occur
• Brushing: Difficult
• Gluing: Very good
• Nailed and screwed: Good
• Finish: Very good

Physical properties

• Apparent density at 12% humidity 530 kg / m3 semi-heavy wood
• Dimensional stability
- Contraction coefficient: moderately nervous
• Hardness (Chaláis-Meudon) 5.4 semi-hard wood

Mechanical properties

• Static flexural strength 1,100 kg / cm2
• Modulus of elasticity 108,750 kg / cm2
• Compressive strength 550 kg / cm2
• Parallel tensile strength 680 kg / cm2