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ASTM A356 Grade 8 vs. S30600 Stainless Steel

Both ASTM A356 grade 8 and S30600 stainless steel are iron alloys. They have 65% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A356 grade 8 and the bottom bar is S30600 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
45
Fatigue Strength, MPa 270
250
Poisson's Ratio 0.29
0.28
Reduction in Area, % 50
56
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 630
610
Tensile Strength: Yield (Proof), MPa 390
270

Thermal Properties

Latent Heat of Fusion, J/g 260
350
Maximum Temperature: Mechanical, °C 440
950
Melting Completion (Liquidus), °C 1470
1380
Melting Onset (Solidus), °C 1430
1330
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 38
14
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 3.5
19
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 2.0
3.6
Embodied Energy, MJ/kg 26
51
Embodied Water, L/kg 55
150

Common Calculations

PREN (Pitting Resistance) 4.7
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
220
Resilience: Unit (Modulus of Resilience), kJ/m3 390
190
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
22
Strength to Weight: Bending, points 21
21
Thermal Diffusivity, mm2/s 10
3.7
Thermal Shock Resistance, points 18
14

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.018
Chromium (Cr), % 1.0 to 1.5
17 to 18.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 95.4 to 97.4
58.9 to 65.3
Manganese (Mn), % 0.5 to 0.9
0 to 2.0
Molybdenum (Mo), % 0.9 to 1.2
0 to 0.2
Nickel (Ni), % 0
14 to 15.5
Phosphorus (P), % 0 to 0.035
0 to 0.020
Silicon (Si), % 0.2 to 0.6
3.7 to 4.3
Sulfur (S), % 0 to 0.030
0 to 0.020
Vanadium (V), % 0.050 to 0.15
0