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ASTM A356 Grade 10 vs. S31655 Stainless Steel

Both ASTM A356 grade 10 and S31655 stainless steel are iron alloys. They have 72% 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 S31655 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
210
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 23
39
Fatigue Strength, MPa 300
300
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
78
Tensile Strength: Ultimate (UTS), MPa 670
710
Tensile Strength: Yield (Proof), MPa 430
350

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 460
1010
Melting Completion (Liquidus), °C 1470
1430
Melting Onset (Solidus), °C 1430
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 39
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 3.9
17
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.8
3.3
Embodied Energy, MJ/kg 23
46
Embodied Water, L/kg 59
160

Common Calculations

PREN (Pitting Resistance) 5.9
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
230
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
16

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.030
Chromium (Cr), % 2.0 to 2.8
19.5 to 21.5
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 94.4 to 96.6
63.2 to 71.9
Manganese (Mn), % 0.5 to 0.8
0 to 2.0
Molybdenum (Mo), % 0.9 to 1.2
0.5 to 1.5
Nickel (Ni), % 0
8.0 to 9.5
Nitrogen (N), % 0
0.14 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 0.015