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ASTM A356 Grade 10 vs. S20431 Stainless Steel

Both ASTM A356 grade 10 and S20431 stainless steel are iron alloys. They have 74% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM A356 grade 10 and the bottom bar is S20431 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
210
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 23
46
Fatigue Strength, MPa 300
320
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
76
Tensile Strength: Ultimate (UTS), MPa 670
710
Tensile Strength: Yield (Proof), MPa 430
350

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Maximum Temperature: Mechanical, °C 460
890
Melting Completion (Liquidus), °C 1470
1400
Melting Onset (Solidus), °C 1430
1360
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 39
15
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 3.9
12
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.8
2.5
Embodied Energy, MJ/kg 23
36
Embodied Water, L/kg 59
140

Common Calculations

PREN (Pitting Resistance) 5.9
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
270
Resilience: Unit (Modulus of Resilience), kJ/m3 480
310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24
25
Strength to Weight: Bending, points 22
23
Thermal Diffusivity, mm2/s 11
4.0
Thermal Shock Resistance, points 19
15

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.12
Chromium (Cr), % 2.0 to 2.8
17 to 18
Copper (Cu), % 0
1.5 to 3.5
Iron (Fe), % 94.4 to 96.6
66.1 to 74.4
Manganese (Mn), % 0.5 to 0.8
5.0 to 7.0
Molybdenum (Mo), % 0.9 to 1.2
0
Nickel (Ni), % 0
2.0 to 4.0
Nitrogen (N), % 0
0.1 to 0.25
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030