Math & Numbers
Specific strength = σ/ρ and specific modulus = E/ρ (optional E). Enter strength in MPa and density in g/cm³; output in N·m/kg (also as kN·m/kg). The figure of merit for lightweight design — a material with high strength but high density (e.g. tungsten) often loses to a lighter alloy. Typical values: Ti-6Al-4V ≈ 210 kN·m/kg, Al 7075 ≈ 180, carbon steel ≈ 50–90, CFRP ≈ 1000+.
Call this tool from your code in three languages.
curl -X POST 'https://api.elysiatools.com/en/api/tools/specific-strength-calculator' \
-H 'Content-Type: application/json' \
-d '{"strength":950,"density":4.43,"youngsModulus":114000,"decimalPlaces":2}'Send a POST request with your inputs as JSON. File parameters require a separate upload first.
POST https://api.elysiatools.com/en/api/tools/specific-strength-calculator| Name | Type | Required | Description |
|---|---|---|---|
| strength | number | Yes | Tensile or yield strength in MPa. E.g. Ti-6Al-4V ≈ 950, Al 7075-T6 ≈ 503, AISI 4340 ≈ 1280, carbon-fiber composite ≈ 1500. |
| density | number | Yes | Density in g/cm³. E.g. titanium ≈ 4.43, aluminum ≈ 2.81, steel ≈ 7.85, CFRP ≈ 1.5, tungsten ≈ 19.3. |
| youngsModulus | number | No | Young's modulus in MPa. Optional — when given, specific modulus E/ρ is also reported. E.g. titanium ≈ 114000, aluminum ≈ 71700, steel ≈ 200000, CFRP ≈ 150000. |
| decimalPlaces | number | No | — |
Add this tool to your Model Context Protocol server so AI agents can list and call it.
Add this block to your MCP client configuration:
{
"mcpServers": {
"elysiatools-specific-strength-calculator": {
"name": "specific-strength-calculator",
"description": "Specific strength = σ/ρ and specific modulus = E/ρ (optional E). Enter strength in MPa and density in g/cm³; output in N·m/kg (also as kN·m/kg). The figure of merit for lightweight design — a material with high strength but high density (e.g. tungsten) often loses to a lighter alloy. Typical values: Ti-6Al-4V ≈ 210 kN·m/kg, Al 7075 ≈ 180, carbon steel ≈ 50–90, CFRP ≈ 1000+.",
"baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=specific-strength-calculator",
"command": "",
"args": [],
"env": {},
"isActive": true,
"type": "sse"
}
}
}After connecting to the SSE endpoint, list the exposed tools:
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/list"
}Invoke the tool by its id, passing arguments built from its parameters:
{
"jsonrpc": "2.0",
"id": 2,
"method": "tools/call",
"params": {
"name": "specific-strength-calculator",
"arguments": {
"strength": 950,
"density": 4.43,
"youngsModulus": 114000,
"decimalPlaces": 2
}
}
}JSON result
{
"key": {...},
"metadata": {
"key": "value"
},
"error": "Error message (optional)",
"message": "Notification message (optional)"
}Questions or issues? Contact [email protected]