Engineering Resources

Engineering Data
Engineering Reference Handbook
How to Specify Custom Parts

Engineering Data

Dimensioning Symbols
Finish Abbreviations
Material Characteristics—Non-Metals
Material Characteristics—Metals
Material Finish Characteristics
Material & Finish Specifications
Metric Conversion Table
Screw Size & Decimal Equivalent Charts
Standard Manufacturing Thicknesses
Table of Properties—Metallic Materials
Table of Properties—Non–Metallic Materials
Workmanship Acceptance Standards
Table of Properties-Metallic Materials

  Aluminum
2024 T3/T4 		Beryllium Copper Brass
(Heat-Treated) 		Copper
(H-H) 		Phos.
Bronze
Annealed Heat-Treated
Tensile Strength (psi) 68,000 70,000 180,000 70,000 34,000 100,000
Shear Strength (psi) 41,000 — — 36,000 23,000 —
Elongation (%) 20 45 6 30 30 4
Modules of Elasticity (psi) 10,600,000 19,000,000 19,000,000 15,000,000 17,000,000 16,000,000
Hardness RB75 RB78 R 15N-78-81 RB77 45 Brinell RB95
Specific Gravity 2.77 8.26 8.26 8.46 8.90 8.86
Melting Point °F 1180 1600-1800 1600-1800 1660-1715 1949-1981 1920
Electrical Conductivity
      (% of Copper) 		30 17 22 26 100 15
Thermal Conductivity
      (BTU/hr/ft²/°F/ft) 		70 68 68 70 225 40
Coef. of Thermal Expansion
      (in/in°F)(10-6) 		12.9 9.3 9.3 10.2 9.3 9.9
Specific Heat (BTU/lb/°F) .23 .10 .10 .09 .09 .09

  Solder
(Spring Tempered) 		Steel
(60-40) 		Spring Steel
(Heat-Treated) 		Stainless
Steel
(300 Series) 		Titanium
Tensile Strength (psi) 6,400 65,000 194,000 90,000 70,000
Shear Strength (psi) 5,700 45,000 — 67,000 —
Elongation (%) 45 30 4 55 22
Modules of Elasticity (psi) — 30,000,000 30,000,000 28,000,000 14,900,000
Hardness 15 Brinell RB63 R15N-82.5-84.5 RB90 RB90
Specific Gravity 8.67 7.85 8.46 7.90 4.5
Melting Point °F 362-374 2765 1660-1715 2600-2680 3272
Electrical Conductivity
      (% of Copper) 		12 12 26 2.4 14.1
Thermal Conductivity
      (BTU/hr/ft²/°F/ft) 		28 34 70 10 —
Coef. of Thermal Expansion
      (in/in°F)(10-6) 		12.2 6.5 10.2 9.6 4-8
Specific Heat (BTU/lb/°F) .05 .11 .11 .12 —
This data has been obtained from numerous sources. While it is believed to be correct, we cannot
assume responsibility for its use.

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