Physical and Mechanical Properties of Metal Materials
Physical Properties
Metal material | Specific gravity | Longitudinal elasticity modulus
×10³ [N/mm²] |
Traverse elasticity modulus
×10³ [N/mm²] |
Thermal conductivity
[W/(m・k)] |
Thermal expansion coefficient
×10⁻⁶ [1/k] |
---|---|---|---|---|---|
Low-carbon steel(0.08C ~ 0.12C) | 7.86 | 206 | 79 | 57 ~ 60 | 11.3 ~ 11.6 |
Medium-carbon steel(0.40C ~ 0.50C) | 7.84 | 205 | 82 | 44 | 10.7 |
High-carbon steel(0.8C ~ 1.6C) | 7.81 ~ 7.83 | 196 ~ 202 | 80 ~ 81 | 37 ~ 43 | 9.6 ~ 10.9 |
Chrome steel(SCr430) | 7.84 | ̶ | ̶ | 44.8 | 12.6(300 ~ 470k) |
Chrome molybdenum steel(SCM440) | 7.83 | ̶ | ̶ | 42.7 | 12.3 |
Martensitic stainless steel(SUS410) | 7.80 | 200 | ̶ | 24.9 | 9.9 |
Austenitic stainless steel(SUS304) | 8.03 | 197 | 73.7 | 15 | 17.3 |
Tool steel(SKD6) | 7.75 | 206 | 82 | 42.2(373k) | 10.8 |
Gray cast iron(FC) | 7.05 ~ 7.3 | 73.6 ~ 127.5 | 28.4 ~ 39.2 | 44 ~ 58.6 | 9.2 ~ 11.8 |
Spheroidal graphite cast iron(FCD) | 7.10 | 161 | 78 | 33.5 ~ 37.7 | 10 |
Duralumin(A2017-T4) | 2.79 | 69 | ̶ | 201 | 23.4 |
Super duralumin(A2024-T4) | 2.77 | 74 | 29 | 121 | 23.2 |
Extra super duralumin(A7075-T6) | 2.80 | 72 | 28 | 130 | 23.6 |
Lautan(AC2A-T6) | 2.79 | 72 | ̶ | 121 | 24.0 |
Silumin(AC3A-F) | 2.66 | 71 | ̶ | 121 | 20.4 |
Aluminum cast iron alloy(AC4CH-T6) | 2.68 | 72 | ̶ | 151 | 21.5 |
Aluminum die cast alloy(ADC12) | 2.70 | 72 | ̶ | 100 | 21.0 |
Zinc die cast alloy | 6.60 | 89 | ̶ | 113 | 27.4 |
Mechanical Properties
Metal material | Yield point [N/mm²] |
Tensile strength [N/mm²] |
Hardness [HB] |
---|---|---|---|
S20C-N | 245 | 402 | 116 ~ 174 |
S30C-N | 284 | 471 | 137 ~ 197 |
S30C-H | 333 | 539 | 152 ~ 212 |
S45C-N | 343 | 569 | 167 ~ 229 |
S45-H | 490 | 686 | 201 ~ 269 |
SS400 | 216 | 402 ~ 510 | ̶ |
SCM420 | ̶ | 932 | 262 ~ 352 |
SCM435 | 785 | 932 | 269 ~ 331 |
SUS303 | 206 | 520 | 187 or below |
SUS304 | 206 | 520 | 200 or below |
FC200 | ̶ | 200 | 223 or below |
FC250 | ̶ | 250 | 241 or below |
FC300 | ̶ | 300 | 262 or below |
FC350 | ̶ | 350 | 277 or below |
FCD400 | 250 | 400 | 201 or below |
FCD450 | 280 | 450 | 143 ~ 217 |
FCD500 | 320 | 500 | 170 ~ 241 |
A2014-T4 | 245 | 412 | ̶ |
A2017-T4 | 196 | 353 | ̶ |
A7075-T6 | 471 | 539 | ̶ |
Other Technical Documents
- General Tolerances(Excerpt from JIS B 0405 1991/JIS B 0419 1991)
- MIKI PULLEY Coupling Standard Hole Drilling Standards
- MIKI PULLEY Clutch and Brake Standard Hole Drilling Standards
- Frequently Used Fits
- Fitting Tolerances(Excerpt from JIS B 0401)
- International System of Units (SI)
- Hexagon Socket Head Cap Bolts (Excerpt from JIS B 1176 2014)
- Hexagon Bolts (Excerpt from JIS B 1180 2014)
- Hexagon Socket Set Screws (Excerpt from JIS B 1177 2007)
- Hex Keys (Excerpt from JIS B 4648 2008)
- Parallel Key and Keyway Sizes and Tolerances
- Retaining Ring (Excerpt from JIS B 2804 2010)
- Bearing Mounting Dimensions