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S31730 Stainless Steel vs. S33228 Stainless Steel

Both S31730 stainless steel and S33228 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 74% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is S31730 stainless steel and the bottom bar is S33228 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
34
Fatigue Strength, MPa 170
170
Poisson's Ratio 0.28
0.28
Rockwell B Hardness 78
82
Shear Modulus, GPa 77
79
Shear Strength, MPa 370
380
Tensile Strength: Ultimate (UTS), MPa 540
570
Tensile Strength: Yield (Proof), MPa 200
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 1430
1410
Melting Onset (Solidus), °C 1390
1360
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 24
37
Density, g/cm3 8.0
8.0
Embodied Carbon, kg CO2/kg material 4.6
6.2
Embodied Energy, MJ/kg 63
89
Embodied Water, L/kg 180
220

Common Calculations

PREN (Pitting Resistance) 30
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
150
Resilience: Unit (Modulus of Resilience), kJ/m3 99
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
20
Strength to Weight: Bending, points 18
19
Thermal Shock Resistance, points 12
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 to 19
26 to 28
Copper (Cu), % 4.0 to 5.0
0
Iron (Fe), % 52.4 to 61
36.5 to 42.3
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 15 to 16.5
31 to 33
Niobium (Nb), % 0
0.6 to 1.0
Nitrogen (N), % 0 to 0.045
0
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.3
Sulfur (S), % 0 to 0.010
0 to 0.015