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S45503 Stainless Steel vs. ASTM A387 Grade 2 Steel

Both S45503 stainless steel and ASTM A387 grade 2 steel are iron alloys. They have 77% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is S45503 stainless steel and the bottom bar is ASTM A387 grade 2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 410 to 500
140 to 170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 4.6 to 6.8
25
Fatigue Strength, MPa 710 to 800
190 to 250
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 940 to 1070
300 to 350
Tensile Strength: Ultimate (UTS), MPa 1610 to 1850
470 to 550
Tensile Strength: Yield (Proof), MPa 1430 to 1700
260 to 350

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 760
420
Melting Completion (Liquidus), °C 1440
1470
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 15
2.6
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 3.4
1.6
Embodied Energy, MJ/kg 48
20
Embodied Water, L/kg 120
50

Common Calculations

PREN (Pitting Resistance) 13
2.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 82 to 110
98 to 120
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 57 to 65
16 to 20
Strength to Weight: Bending, points 39 to 43
17 to 19
Thermal Shock Resistance, points 56 to 64
14 to 16

Alloy Composition

Carbon (C), % 0 to 0.010
0.050 to 0.21
Chromium (Cr), % 11 to 12.5
0.5 to 0.8
Copper (Cu), % 1.5 to 2.5
0
Iron (Fe), % 72.4 to 78.9
97.1 to 98.3
Manganese (Mn), % 0 to 0.5
0.55 to 0.8
Molybdenum (Mo), % 0 to 0.5
0.45 to 0.6
Nickel (Ni), % 7.5 to 9.5
0
Niobium (Nb), % 0.1 to 0.5
0
Phosphorus (P), % 0 to 0.010
0 to 0.025
Silicon (Si), % 0 to 0.2
0.15 to 0.4
Sulfur (S), % 0 to 0.010
0 to 0.025
Titanium (Ti), % 1.0 to 1.4
0