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ASTM A387 Grade 2 Steel vs. S44700 Stainless Steel

Both ASTM A387 grade 2 steel and S44700 stainless steel are iron alloys. They have 68% 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 ASTM A387 grade 2 steel and the bottom bar is S44700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 170
200
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 25
23
Fatigue Strength, MPa 190 to 250
300
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
82
Shear Strength, MPa 300 to 350
380
Tensile Strength: Ultimate (UTS), MPa 470 to 550
600
Tensile Strength: Yield (Proof), MPa 260 to 350
450

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 420
1100
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
18
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.6
3.6
Embodied Energy, MJ/kg 20
49
Embodied Water, L/kg 50
180

Common Calculations

PREN (Pitting Resistance) 2.4
42
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 120
120
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 320
480
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 16 to 20
21
Strength to Weight: Bending, points 17 to 19
20
Thermal Shock Resistance, points 14 to 16
19

Alloy Composition

Carbon (C), % 0.050 to 0.21
0 to 0.010
Chromium (Cr), % 0.5 to 0.8
28 to 30
Copper (Cu), % 0
0 to 0.15
Iron (Fe), % 97.1 to 98.3
64.9 to 68.5
Manganese (Mn), % 0.55 to 0.8
0 to 0.3
Molybdenum (Mo), % 0.45 to 0.6
3.5 to 4.2
Nickel (Ni), % 0
0 to 0.15
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0.15 to 0.4
0 to 0.2
Sulfur (S), % 0 to 0.025
0 to 0.020