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AISI 301 Stainless Steel vs. S31730 Stainless Steel

Both AISI 301 stainless steel and S31730 stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 29 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 301 stainless steel and the bottom bar is S31730 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 440
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 7.4 to 46
40
Fatigue Strength, MPa 210 to 600
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 410 to 860
370
Tensile Strength: Ultimate (UTS), MPa 590 to 1460
540
Tensile Strength: Yield (Proof), MPa 230 to 1080
200

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 840
990
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 17
16

Otherwise Unclassified Properties

Base Metal Price, % relative 13
24
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 2.7
4.6
Embodied Energy, MJ/kg 39
63
Embodied Water, L/kg 130
180

Common Calculations

PREN (Pitting Resistance) 18
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 99 to 300
170
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 2970
99
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 52
19
Strength to Weight: Bending, points 20 to 37
18
Thermal Shock Resistance, points 12 to 31
12

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 16 to 18
17 to 19
Copper (Cu), % 0
4.0 to 5.0
Iron (Fe), % 70.7 to 78
52.4 to 61
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 6.0 to 8.0
15 to 16.5
Nitrogen (N), % 0 to 0.1
0 to 0.045
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.010