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S31730 Stainless Steel vs. S13800 Stainless Steel

Both S31730 stainless steel and S13800 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is S31730 stainless steel and the bottom bar is S13800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
290 to 480
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
11 to 18
Fatigue Strength, MPa 170
410 to 870
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 370
610 to 1030
Tensile Strength: Ultimate (UTS), MPa 540
980 to 1730
Tensile Strength: Yield (Proof), MPa 200
660 to 1580

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 420
390
Maximum Temperature: Mechanical, °C 990
810
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 24
15
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 4.6
3.4
Embodied Energy, MJ/kg 63
46
Embodied Water, L/kg 180
140

Common Calculations

PREN (Pitting Resistance) 30
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
150 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 99
1090 to 5490
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
35 to 61
Strength to Weight: Bending, points 18
28 to 41
Thermal Shock Resistance, points 12
33 to 58

Alloy Composition

Aluminum (Al), % 0
0.9 to 1.4
Carbon (C), % 0 to 0.030
0 to 0.050
Chromium (Cr), % 17 to 19
12.3 to 13.2
Copper (Cu), % 4.0 to 5.0
0
Iron (Fe), % 52.4 to 61
73.6 to 77.3
Manganese (Mn), % 0 to 2.0
0 to 0.2
Molybdenum (Mo), % 3.0 to 4.0
2.0 to 3.0
Nickel (Ni), % 15 to 16.5
7.5 to 8.5
Nitrogen (N), % 0 to 0.045
0 to 0.010
Phosphorus (P), % 0 to 0.040
0 to 0.010
Silicon (Si), % 0 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.010
0 to 0.0080