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S32654 Stainless Steel vs. ASTM A356 Grade 8

Both S32654 stainless steel and ASTM A356 grade 8 are iron alloys. They have 45% 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 S32654 stainless steel and the bottom bar is ASTM A356 grade 8.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
190
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 45
21
Fatigue Strength, MPa 450
270
Poisson's Ratio 0.28
0.29
Reduction in Area, % 46
50
Shear Modulus, GPa 82
73
Tensile Strength: Ultimate (UTS), MPa 850
630
Tensile Strength: Yield (Proof), MPa 490
390

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Maximum Temperature: Mechanical, °C 1100
440
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 11
38
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 34
3.5
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 6.4
2.0
Embodied Energy, MJ/kg 87
26
Embodied Water, L/kg 220
55

Common Calculations

PREN (Pitting Resistance) 57
4.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 330
110
Resilience: Unit (Modulus of Resilience), kJ/m3 570
390
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 29
22
Strength to Weight: Bending, points 25
21
Thermal Diffusivity, mm2/s 2.9
10
Thermal Shock Resistance, points 19
18

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.2
Chromium (Cr), % 24 to 25
1.0 to 1.5
Copper (Cu), % 0.3 to 0.6
0
Iron (Fe), % 38.3 to 45.3
95.4 to 97.4
Manganese (Mn), % 2.0 to 4.0
0.5 to 0.9
Molybdenum (Mo), % 7.0 to 8.0
0.9 to 1.2
Nickel (Ni), % 21 to 23
0
Nitrogen (N), % 0.45 to 0.55
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.5
0.2 to 0.6
Sulfur (S), % 0 to 0.0050
0 to 0.030
Vanadium (V), % 0
0.050 to 0.15