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ASTM A387 Grade 2 Steel vs. N08135 Stainless Steel

Both ASTM A387 grade 2 steel and N08135 stainless steel are iron alloys. They have a modest 38% of their average alloy composition in common, which, by itself, doesn't mean much. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 2 steel and the bottom bar is N08135 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 25
46
Fatigue Strength, MPa 190 to 250
220
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
80
Shear Strength, MPa 300 to 350
400
Tensile Strength: Ultimate (UTS), MPa 470 to 550
570
Tensile Strength: Yield (Proof), MPa 260 to 350
240

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 420
1100
Melting Completion (Liquidus), °C 1470
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
39
Density, g/cm3 7.9
8.2
Embodied Carbon, kg CO2/kg material 1.6
6.8
Embodied Energy, MJ/kg 20
94
Embodied Water, L/kg 50
220

Common Calculations

PREN (Pitting Resistance) 2.4
38
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 120
210
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 320
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16 to 20
19
Strength to Weight: Bending, points 17 to 19
19
Thermal Shock Resistance, points 14 to 16
13

Alloy Composition

Carbon (C), % 0.050 to 0.21
0 to 0.030
Chromium (Cr), % 0.5 to 0.8
20.5 to 23.5
Copper (Cu), % 0
0 to 0.7
Iron (Fe), % 97.1 to 98.3
30.2 to 42.3
Manganese (Mn), % 0.55 to 0.8
0 to 1.0
Molybdenum (Mo), % 0.45 to 0.6
4.0 to 5.0
Nickel (Ni), % 0
33 to 38
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0.15 to 0.4
0 to 0.75
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0
0.2 to 0.8