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ASTM A356 Grade 8 vs. S33228 Stainless Steel

Both ASTM A356 grade 8 and S33228 stainless steel are iron alloys. They have 41% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ASTM A356 grade 8 and the bottom bar is S33228 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 21
34
Fatigue Strength, MPa 270
170
Poisson's Ratio 0.29
0.28
Reduction in Area, % 50
39
Shear Modulus, GPa 73
79
Tensile Strength: Ultimate (UTS), MPa 630
570
Tensile Strength: Yield (Proof), MPa 390
210

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Maximum Temperature: Mechanical, °C 440
1100
Melting Completion (Liquidus), °C 1470
1410
Melting Onset (Solidus), °C 1430
1360
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 3.5
37
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 2.0
6.2
Embodied Energy, MJ/kg 26
89
Embodied Water, L/kg 55
220

Common Calculations

PREN (Pitting Resistance) 4.7
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
150
Resilience: Unit (Modulus of Resilience), kJ/m3 390
110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
20
Strength to Weight: Bending, points 21
19
Thermal Shock Resistance, points 18
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.025
Carbon (C), % 0 to 0.2
0.040 to 0.080
Cerium (Ce), % 0
0.050 to 0.1
Chromium (Cr), % 1.0 to 1.5
26 to 28
Iron (Fe), % 95.4 to 97.4
36.5 to 42.3
Manganese (Mn), % 0.5 to 0.9
0 to 1.0
Molybdenum (Mo), % 0.9 to 1.2
0
Nickel (Ni), % 0
31 to 33
Niobium (Nb), % 0
0.6 to 1.0
Phosphorus (P), % 0 to 0.035
0 to 0.020
Silicon (Si), % 0.2 to 0.6
0 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.015
Vanadium (V), % 0.050 to 0.15
0