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S28200 Stainless Steel vs. S31655 Stainless Steel

Both S28200 stainless steel and S31655 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 82% of their average alloy composition in common. There are 29 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 S28200 stainless steel and the bottom bar is S31655 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
210
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
39
Fatigue Strength, MPa 430
300
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Shear Strength, MPa 610
490
Tensile Strength: Ultimate (UTS), MPa 870
710
Tensile Strength: Yield (Proof), MPa 460
350

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 410
430
Maximum Temperature: Mechanical, °C 900
1010
Melting Completion (Liquidus), °C 1380
1430
Melting Onset (Solidus), °C 1330
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 18
16

Otherwise Unclassified Properties

Base Metal Price, % relative 12
17
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.8
3.3
Embodied Energy, MJ/kg 41
46
Embodied Water, L/kg 160
160

Common Calculations

PREN (Pitting Resistance) 29
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 330
230
Resilience: Unit (Modulus of Resilience), kJ/m3 540
310
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 32
25
Strength to Weight: Bending, points 27
23
Thermal Shock Resistance, points 17
16

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 17 to 19
19.5 to 21.5
Copper (Cu), % 0.75 to 1.3
0 to 1.0
Iron (Fe), % 57.7 to 64.1
63.2 to 71.9
Manganese (Mn), % 17 to 19
0 to 2.0
Molybdenum (Mo), % 0.75 to 1.3
0.5 to 1.5
Nickel (Ni), % 0
8.0 to 9.5
Nitrogen (N), % 0.4 to 0.6
0.14 to 0.25
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015