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ASTM A356 Grade 2 vs. S30441 Stainless Steel

Both ASTM A356 grade 2 and S30441 stainless steel are iron alloys. They have 68% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ASTM A356 grade 2 and the bottom bar is S30441 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 25
45
Fatigue Strength, MPa 200
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 510
580
Tensile Strength: Yield (Proof), MPa 270
230

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 410
940
Melting Completion (Liquidus), °C 1470
1420
Melting Onset (Solidus), °C 1430
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
18
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.5
3.4
Embodied Energy, MJ/kg 20
50
Embodied Water, L/kg 47
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
210
Resilience: Unit (Modulus of Resilience), kJ/m3 190
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18
21
Strength to Weight: Bending, points 18
20
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 15
13

Alloy Composition

Carbon (C), % 0 to 0.25
0 to 0.080
Chromium (Cr), % 0
17.5 to 19.5
Copper (Cu), % 0
1.5 to 2.5
Iron (Fe), % 97.7 to 99.55
62 to 71.7
Manganese (Mn), % 0 to 0.7
0 to 2.0
Molybdenum (Mo), % 0.45 to 0.65
0
Nickel (Ni), % 0
8.0 to 10.5
Niobium (Nb), % 0
0.1 to 0.5
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 0.6
1.0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
0.2 to 0.8