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Physical and Mechanical Properties of Metal Materials

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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 ̶

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