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S31727 Stainless Steel vs. ASTM A387 Grade 11 Steel

Both S31727 stainless steel and ASTM A387 grade 11 steel are iron alloys. They have 60% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is S31727 stainless steel and the bottom bar is ASTM A387 grade 11 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
25
Fatigue Strength, MPa 240
200 to 250
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 430
320 to 390
Tensile Strength: Ultimate (UTS), MPa 630
500 to 600
Tensile Strength: Yield (Proof), MPa 270
270 to 350

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Maximum Temperature: Mechanical, °C 1010
430
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 24
2.9
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 4.7
1.6
Embodied Energy, MJ/kg 64
21
Embodied Water, L/kg 180
53

Common Calculations

PREN (Pitting Resistance) 35
3.1
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
100 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 190
200 to 320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
18 to 21
Strength to Weight: Bending, points 20
18 to 20
Thermal Shock Resistance, points 14
15 to 18

Alloy Composition

Carbon (C), % 0 to 0.030
0.050 to 0.17
Chromium (Cr), % 17.5 to 19
1.0 to 1.5
Copper (Cu), % 2.8 to 4.0
0
Iron (Fe), % 53.7 to 61.3
96.2 to 97.6
Manganese (Mn), % 0 to 1.0
0.4 to 0.65
Molybdenum (Mo), % 3.8 to 4.5
0.45 to 0.65
Nickel (Ni), % 14.5 to 16.5
0
Nitrogen (N), % 0.15 to 0.21
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 1.0
0.5 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.025