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S21603 Stainless Steel vs. S39277 Stainless Steel

Both S21603 stainless steel and S39277 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 90% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S21603 stainless steel and the bottom bar is S39277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
250
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
28
Fatigue Strength, MPa 360
480
Poisson's Ratio 0.28
0.27
Reduction in Area, % 57
57
Shear Modulus, GPa 79
80
Shear Strength, MPa 490
600
Tensile Strength: Ultimate (UTS), MPa 690
930
Tensile Strength: Yield (Proof), MPa 390
660

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 420
450
Maximum Temperature: Mechanical, °C 990
1100
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 17
13

Otherwise Unclassified Properties

Base Metal Price, % relative 17
23
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.6
4.2
Embodied Energy, MJ/kg 50
59
Embodied Water, L/kg 160
180

Common Calculations

PREN (Pitting Resistance) 34
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
240
Resilience: Unit (Modulus of Resilience), kJ/m3 380
1070
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
33
Strength to Weight: Bending, points 22
27
Thermal Shock Resistance, points 15
26

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.025
Chromium (Cr), % 17.5 to 22
24 to 26
Copper (Cu), % 0
1.2 to 2.0
Iron (Fe), % 57.6 to 67.8
56.8 to 64.3
Manganese (Mn), % 7.5 to 9.0
0 to 0.8
Molybdenum (Mo), % 2.0 to 3.0
3.0 to 4.0
Nickel (Ni), % 5.0 to 7.0
6.5 to 8.0
Nitrogen (N), % 0.25 to 0.5
0.23 to 0.33
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 0.75
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.0020
Tungsten (W), % 0
0.8 to 1.2