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S15500 Stainless Steel vs. ASTM A356 Grade 5

Both S15500 stainless steel and ASTM A356 grade 5 are iron alloys. They have 77% of their average alloy composition in common. There are 32 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 S15500 stainless steel and the bottom bar is ASTM A356 grade 5.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 290 to 430
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 6.8 to 16
25
Fatigue Strength, MPa 350 to 650
230
Poisson's Ratio 0.28
0.29
Reduction in Area, % 17 to 40
39
Shear Modulus, GPa 75
73
Tensile Strength: Ultimate (UTS), MPa 890 to 1490
550
Tensile Strength: Yield (Proof), MPa 590 to 1310
310

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 820
420
Melting Completion (Liquidus), °C 1430
1470
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
49
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
2.6
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.7
1.5
Embodied Energy, MJ/kg 39
20
Embodied Water, L/kg 130
49

Common Calculations

PREN (Pitting Resistance) 15
2.2
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 120
120
Resilience: Unit (Modulus of Resilience), kJ/m3 890 to 4460
250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32 to 53
20
Strength to Weight: Bending, points 26 to 37
19
Thermal Diffusivity, mm2/s 4.6
13
Thermal Shock Resistance, points 30 to 50
16

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.25
Chromium (Cr), % 14 to 15.5
0.4 to 0.7
Copper (Cu), % 2.5 to 4.5
0
Iron (Fe), % 71.9 to 79.9
97.1 to 99.2
Manganese (Mn), % 0 to 1.0
0 to 0.7
Molybdenum (Mo), % 0
0.4 to 0.6
Nickel (Ni), % 3.5 to 5.5
0
Niobium (Nb), % 0.15 to 0.45
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030