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Steel Bolts Sae Grades

Reference data and engineering information about steel bolts sae grades for material properties applications.

steelboltssaegrades

Overview

Engineering reference data for Steel Bolts Sae Grades in material science and properties.

Key Formulas

Stress

σ=FA\sigma = \frac{F}{A}

Force per unit area.

Strain

ε=ΔLL0\varepsilon = \frac{\Delta L}{L_0}

Change in length per original length.

Hooke's Law

σ=Eε\sigma = E \varepsilon

Stress proportional to strain in elastic region.

Thermal Expansion

ΔL=αL0ΔT\Delta L = \alpha L_0 \Delta T

Length change due to temperature.

Variables

SymbolDescriptionUnit
σ\sigmaStressPa
ε\varepsilonStrain
EEYoung's modulusPa
α\alphaThermal expansion coefficient1/°C
ΔT\Delta TTemperature change°C

SAE Grade Properties DataTable

9 rows
SAE bolt grade properties. Strengths are minimum values. Q & T indicates Quenched and Tempered.
SAE Grade
Size Range (in)
Min. Proof Strength (10³ psi)(10³ psi)
Min. Tensile Strength (10³ psi)(10³ psi)
Material
11/4 - 1 1/2Low - medium carbon steel
21/4 - 3/45574Low - medium carbon steel
27/8 - 1 1/23360Low - medium carbon steel
51/4 - 185120Medium carbon steel, Q & T
51 1/8 - 1 1/274105Medium carbon steel, Q & T
5.21/4 - 185120Low carbon martensite steel, Q & T
71/4 - 1 1/2105133Medium carbon alloy steel, Q & T
81/4 - 1 1/2120150Medium carbon alloy steel, Q & T
8.21/4 - 1120150Low carbon martensite steel, Q & T

Source: engineeringtoolbox.com

Additional Formula

The following unit conversion is essential for working with international data: 1psi(lb/in2)=6,894.8Pa(N/m2)1 \, \text{psi} \, (\text{lb/in}^2) = 6,894.8 \, \text{Pa} \, (\text{N/m}^2)

Interactive Charts

SAE steel bolt

References