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S15500 Stainless Steel vs. ASTM A387 Grade 22 Steel

Both S15500 stainless steel and ASTM A387 grade 22 steel are iron alloys. They have 79% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is S15500 stainless steel and the bottom bar is ASTM A387 grade 22 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 290 to 430
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 6.8 to 16
21
Fatigue Strength, MPa 350 to 650
160 to 240
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
74
Shear Strength, MPa 540 to 870
300 to 380
Tensile Strength: Ultimate (UTS), MPa 890 to 1490
480 to 600
Tensile Strength: Yield (Proof), MPa 590 to 1310
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Maximum Temperature: Mechanical, °C 820
460
Melting Completion (Liquidus), °C 1430
1470
Melting Onset (Solidus), °C 1380
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
40
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 13
3.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.7
1.7
Embodied Energy, MJ/kg 39
23
Embodied Water, L/kg 130
58

Common Calculations

PREN (Pitting Resistance) 15
5.6
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 120
85 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 890 to 4460
140 to 320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32 to 53
17 to 21
Strength to Weight: Bending, points 26 to 37
17 to 20
Thermal Diffusivity, mm2/s 4.6
11
Thermal Shock Resistance, points 30 to 50
14 to 17

Alloy Composition

Carbon (C), % 0 to 0.070
0.050 to 0.15
Chromium (Cr), % 14 to 15.5
2.0 to 2.5
Copper (Cu), % 2.5 to 4.5
0
Iron (Fe), % 71.9 to 79.9
95.1 to 96.8
Manganese (Mn), % 0 to 1.0
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 3.5 to 5.5
0
Niobium (Nb), % 0.15 to 0.45
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.025