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S46500 Stainless Steel vs. ASTM A356 Grade 8

Both S46500 stainless steel and ASTM A356 grade 8 are iron alloys. They have 77% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is S46500 stainless steel and the bottom bar is ASTM A356 grade 8.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 2.3 to 14
21
Fatigue Strength, MPa 550 to 890
270
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Tensile Strength: Ultimate (UTS), MPa 1260 to 1930
630
Tensile Strength: Yield (Proof), MPa 1120 to 1810
390

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Maximum Temperature: Mechanical, °C 780
440
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 15
3.5
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.6
2.0
Embodied Energy, MJ/kg 51
26
Embodied Water, L/kg 120
55

Common Calculations

PREN (Pitting Resistance) 15
4.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 43 to 210
110
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 44 to 68
22
Strength to Weight: Bending, points 33 to 44
21
Thermal Shock Resistance, points 44 to 67
18

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.2
Chromium (Cr), % 11 to 12.5
1.0 to 1.5
Iron (Fe), % 72.6 to 76.1
95.4 to 97.4
Manganese (Mn), % 0 to 0.25
0.5 to 0.9
Molybdenum (Mo), % 0.75 to 1.3
0.9 to 1.2
Nickel (Ni), % 10.7 to 11.3
0
Nitrogen (N), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.015
0 to 0.035
Silicon (Si), % 0 to 0.25
0.2 to 0.6
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 1.5 to 1.8
0
Vanadium (V), % 0
0.050 to 0.15