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S31727 Stainless Steel vs. ASTM A387 Grade 22 Steel

Both S31727 stainless steel and ASTM A387 grade 22 steel are iron alloys. They have 61% 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 22 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
21
Fatigue Strength, MPa 240
160 to 240
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
74
Shear Strength, MPa 430
300 to 380
Tensile Strength: Ultimate (UTS), MPa 630
480 to 600
Tensile Strength: Yield (Proof), MPa 270
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Maximum Temperature: Mechanical, °C 1010
460
Melting Completion (Liquidus), °C 1440
1470
Melting Onset (Solidus), °C 1390
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 24
3.8
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 4.7
1.7
Embodied Energy, MJ/kg 64
23
Embodied Water, L/kg 180
58

Common Calculations

PREN (Pitting Resistance) 35
5.6
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
85 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 190
140 to 320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
17 to 21
Strength to Weight: Bending, points 20
17 to 20
Thermal Shock Resistance, points 14
14 to 17

Alloy Composition

Carbon (C), % 0 to 0.030
0.050 to 0.15
Chromium (Cr), % 17.5 to 19
2.0 to 2.5
Copper (Cu), % 2.8 to 4.0
0
Iron (Fe), % 53.7 to 61.3
95.1 to 96.8
Manganese (Mn), % 0 to 1.0
0.3 to 0.6
Molybdenum (Mo), % 3.8 to 4.5
0.9 to 1.1
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 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.025