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S21603 Stainless Steel vs. S33228 Stainless Steel

Both S21603 stainless steel and S33228 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 66% of their average alloy composition in common.

For each property being compared, the top bar is S21603 stainless steel and the bottom bar is S33228 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
34
Fatigue Strength, MPa 360
170
Poisson's Ratio 0.28
0.28
Reduction in Area, % 57
39
Rockwell B Hardness 88
82
Shear Modulus, GPa 79
79
Shear Strength, MPa 490
380
Tensile Strength: Ultimate (UTS), MPa 690
570
Tensile Strength: Yield (Proof), MPa 390
210

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Corrosion, °C 420
560
Maximum Temperature: Mechanical, °C 990
1100
Melting Completion (Liquidus), °C 1420
1410
Melting Onset (Solidus), °C 1380
1360
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 17
16

Otherwise Unclassified Properties

Base Metal Price, % relative 17
37
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 3.6
6.2
Embodied Energy, MJ/kg 50
89
Embodied Water, L/kg 160
220

Common Calculations

PREN (Pitting Resistance) 34
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
150
Resilience: Unit (Modulus of Resilience), kJ/m3 380
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
20
Strength to Weight: Bending, points 22
19
Thermal Shock Resistance, points 15
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.025
Carbon (C), % 0 to 0.030
0.040 to 0.080
Cerium (Ce), % 0
0.050 to 0.1
Chromium (Cr), % 17.5 to 22
26 to 28
Iron (Fe), % 57.6 to 67.8
36.5 to 42.3
Manganese (Mn), % 7.5 to 9.0
0 to 1.0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 5.0 to 7.0
31 to 33
Niobium (Nb), % 0
0.6 to 1.0
Nitrogen (N), % 0.25 to 0.5
0
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 0.75
0 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.015