Typical Yield and Ultimate Strengths
Note: many of the values depend on manufacturing process and purity/composition.
| Material | Yield strength (MPa) |
Ultimate strength (MPa) |
Density (g/cm³) |
free breaking length (km) |
|---|---|---|---|---|
| ASTM A36 steel | 250 | 400 | 7.85 | 3.2 |
| Steel, API 5L X65 | 448 | 531 | 7.85 | 5.8 |
| Steel, high strength alloy ASTM A514 | 690 | 760 | 7.85 | 9.0 |
| Steel, prestressing strands | 1650 | 1860 | 7.85 | 21.6 |
| Piano wire | 2200–2482 | 7.8 | 28.7 | |
| Carbon Fiber (CF, CFK) | 5650 | 1.75 | ||
| High density polyethylene (HDPE) | 26-33 | 37 | 0.95 | 2.8 |
| Polypropylene | 12-43 | 19.7-80 | 0.91 | 1.3 |
| Stainless steel AISI 302 - Cold-rolled | 520 | 860 | ||
| Cast iron 4.5% C, ASTM A-48 | * | 172 | 7.20 | 2.4 |
| Titanium alloy (6% Al, 4% V) | 830 | 900 | 4.51 | 18.8 |
| Aluminium alloy 2014-T6 | 400 | 455 | 2.7 | 15.1 |
| Copper 99.9% Cu | 70 | 220 | 8.92 | 0.8 |
| Cupronickel 10% Ni, 1.6% Fe, 1% Mn, balance Cu | 130 | 350 | 8.94 | 1.4 |
| Brass | approx. 200+ | 550 | 5.3 | 3.8 |
| Spider silk | 1150 (??) | 1400 | 1.31 | 109 |
| Silkworm silk | 500 | 25 | ||
| Aramid (Kevlar or Twaron) | 3620 | 1.44 | 256.3 | |
| UHMWPE | 2400 | 0.97 | 400 | |
| Bone (limb) | 104-121 | 130 | 3 | |
| Nylon, type 6/6 | 45 | 75 | 2 | |
| *Grey cast iron does not have a well defined yield strength because the stress-strain relationship is atypical. The yield strength can vary from 65 to 80% of the tensile strength. | ||||
| Young's modulus (GPa) |
Proof or yield stress (MPa) |
Ultimate Tensile Strength (MPa) |
|
|---|---|---|---|
| Aluminium | 70 | 15-20 | 40-50 |
| Copper | 130 | 33 | 210 |
| Iron | 211 | 80-100 | 350 |
| Nickel | 170 | 14-35 | 140-195 |
| Silicon | 107 | 5000-9000 | |
| Tantalum | 186 | 180 | 200 |
| Tin | 47 | 9-14 | 15-200 |
| Titanium | 120 | 100-225 | 240-370 |
| Tungsten | 411 | 550 | 550-620 |
Read more about this topic: Yield (engineering)
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