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S21600 Stainless Steel vs. S39274 Stainless Steel

Both S21600 stainless steel and S39274 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a moderately high 91% 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 S21600 stainless steel and the bottom bar is S39274 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
270
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 46
17
Fatigue Strength, MPa 360
380
Poisson's Ratio 0.28
0.27
Reduction in Area, % 56
34
Shear Modulus, GPa 79
81
Shear Strength, MPa 500
560
Tensile Strength: Ultimate (UTS), MPa 710
900
Tensile Strength: Yield (Proof), MPa 390
620

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
1480
Melting Onset (Solidus), °C 1380
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 17
13

Otherwise Unclassified Properties

Base Metal Price, % relative 17
24
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 3.6
4.3
Embodied Energy, MJ/kg 50
60
Embodied Water, L/kg 160
180

Common Calculations

PREN (Pitting Resistance) 34
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
140
Resilience: Unit (Modulus of Resilience), kJ/m3 370
940
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
32
Strength to Weight: Bending, points 23
26
Thermal Shock Resistance, points 15
25

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 17.5 to 22
24 to 26
Copper (Cu), % 0
0.2 to 0.8
Iron (Fe), % 57.6 to 67.8
57 to 65.6
Manganese (Mn), % 7.5 to 9.0
0 to 1.0
Molybdenum (Mo), % 2.0 to 3.0
2.5 to 3.5
Nickel (Ni), % 5.0 to 7.0
6.0 to 8.0
Nitrogen (N), % 0.25 to 0.5
0.24 to 0.32
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 0.75
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 0
1.5 to 2.5