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ASTM A387 Grade 11 Steel vs. S38815 Stainless Steel

Both ASTM A387 grade 11 steel and S38815 stainless steel are iron alloys. They have 65% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 11 steel and the bottom bar is S38815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 25
34
Fatigue Strength, MPa 200 to 250
230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Shear Strength, MPa 320 to 390
410
Tensile Strength: Ultimate (UTS), MPa 500 to 600
610
Tensile Strength: Yield (Proof), MPa 270 to 350
290

Thermal Properties

Latent Heat of Fusion, J/g 260
370
Maximum Temperature: Mechanical, °C 430
860
Melting Completion (Liquidus), °C 1460
1360
Melting Onset (Solidus), °C 1420
1310
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 13
15

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
19
Density, g/cm3 7.8
7.5
Embodied Carbon, kg CO2/kg material 1.6
3.8
Embodied Energy, MJ/kg 21
54
Embodied Water, L/kg 53
140

Common Calculations

PREN (Pitting Resistance) 3.1
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 130
170
Resilience: Unit (Modulus of Resilience), kJ/m3 200 to 320
220
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18 to 21
22
Strength to Weight: Bending, points 18 to 20
21
Thermal Shock Resistance, points 15 to 18
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.3
Carbon (C), % 0.050 to 0.17
0 to 0.030
Chromium (Cr), % 1.0 to 1.5
13 to 15
Copper (Cu), % 0
0.75 to 1.5
Iron (Fe), % 96.2 to 97.6
56.1 to 67
Manganese (Mn), % 0.4 to 0.65
0 to 2.0
Molybdenum (Mo), % 0.45 to 0.65
0.75 to 1.5
Nickel (Ni), % 0
13 to 17
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.5 to 0.8
5.5 to 6.5
Sulfur (S), % 0 to 0.025
0 to 0.020