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AISI 439 Stainless Steel vs. S28200 Stainless Steel

Both AISI 439 stainless steel and S28200 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 80% of their average alloy composition in common. There are 30 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 AISI 439 stainless steel and the bottom bar is S28200 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
260
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
45
Fatigue Strength, MPa 170
430
Poisson's Ratio 0.28
0.28
Reduction in Area, % 51
57
Shear Modulus, GPa 77
77
Shear Strength, MPa 310
610
Tensile Strength: Ultimate (UTS), MPa 490
870
Tensile Strength: Yield (Proof), MPa 250
460

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 530
410
Maximum Temperature: Mechanical, °C 890
900
Melting Completion (Liquidus), °C 1510
1380
Melting Onset (Solidus), °C 1430
1330
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 11
18

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
12
Density, g/cm3 7.7
7.6
Embodied Carbon, kg CO2/kg material 2.3
2.8
Embodied Energy, MJ/kg 34
41
Embodied Water, L/kg 120
160

Common Calculations

PREN (Pitting Resistance) 18
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
330
Resilience: Unit (Modulus of Resilience), kJ/m3 160
540
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 18
32
Strength to Weight: Bending, points 18
27
Thermal Shock Resistance, points 16
17

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
Carbon (C), % 0 to 0.030
0 to 0.15
Chromium (Cr), % 17 to 19
17 to 19
Copper (Cu), % 0
0.75 to 1.3
Iron (Fe), % 77.1 to 82.8
57.7 to 64.1
Manganese (Mn), % 0 to 1.0
17 to 19
Molybdenum (Mo), % 0
0.75 to 1.3
Nickel (Ni), % 0 to 0.5
0
Nitrogen (N), % 0 to 0.030
0.4 to 0.6
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0.2 to 1.1
0