Fundamentals of Materials Science and Engineering: An Integrated Approach, 3e

GTBL042-App-B GTBL042-Callister-v3 September 21, 2007 20:24

814 • Appendix B / Properties of Selected Engineering Materials

Table B.5 Room-Temperature Plane Strain Fracture Toughness and

Strength Values for Various Engineering Materials

Fracture Toughness

Strengtha

Material MPa

√

mksi

√

in. (MPa)

METALS AND METAL ALLOYS

Plain Carbon and Low Alloy Steels

Steel alloy 1040 54.0 49.0 260

Steel alloy 4140

• Tempered @ 370◦C 55–65 50–59 1375–1585


• Tempered @ 482◦C 75–93 68.3–84.6 1100–1200
  Steel alloy 4340


• Tempered @ 260◦C 50.0 45.8 1640


• Tempered @ 425◦C 87.4 80.0 1420
  Stainless Steels
  Stainless alloy 17-7PH


• Precipitation hardened @ 510◦C 76 69 1310
  Aluminum Alloys
  Alloy 2024-T3 44 40 345
  Alloy 7075-T651 24 22 495
  Magnesium Alloys
  Alloy AZ31B


• Extruded 28.0 25.5 200
  Titanium Alloys
  Alloy Ti-5Al-2.5Sn


• Air cooled 71.4 65.0 876
  Alloy Ti-6Al-4V


• Equiaxed grains 44–66 40–60 910
  GRAPHITE, CERAMICS, AND SEMICONDUCTING MATERIALS
  Aluminum oxide


• 99.9% pure 4.2–5.9 3.8–5.4 282–551


• 96% pure 3.85–3.95 3.5–3.6 358
  Concrete 0.2–1.4 0.18–1.27 —
  Diamond


• Natural 3.4 3.1 1050


• Synthetic 6.0–10.7 5.5–9.7 800–1400
  Gallium arsenide
  •Inthe{ 100 }orientation 0.43 0.39 66
  •Inthe{ 110 }orientation 0.31 0.28 —
  •Inthe{ 111 }orientation 0.45 0.41 —
  Glass, borosilicate (Pyrex) 0.77 0.70 69
  Glass, soda–lime 0.75 0.68 69
  Glass ceramic (Pyroceram) 1.6–2.1 1.5–1.9 123–370
  Silica, fused 0.79 0.72 104
  Silicon
  •Inthe{ 100 }orientation 0.95 0.86 —
  •Inthe{ 110 }orientation 0.90 0.82 —
  •Inthe{ 111 }orientation 0.82 0.75 —
  Silicon carbide


• Hot pressed 4.8–6.1 4.4–5.6 230–825


• Sintered 4.8 4.4 96–520