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S31730 Stainless Steel vs. EN 1.4313 Stainless Steel

Both S31730 stainless steel and EN 1.4313 stainless steel are iron alloys. They have 75% of their average alloy composition in common. There are 28 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 EN 1.4313 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
12 to 17
Fatigue Strength, MPa 170
340 to 510
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 370
460 to 600
Tensile Strength: Ultimate (UTS), MPa 540
750 to 1000
Tensile Strength: Yield (Proof), MPa 200
580 to 910

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 420
390
Maximum Temperature: Mechanical, °C 990
780
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 16
10

Otherwise Unclassified Properties

Base Metal Price, % relative 24
10
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 4.6
2.4
Embodied Energy, MJ/kg 63
34
Embodied Water, L/kg 180
110

Common Calculations

PREN (Pitting Resistance) 30
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
110 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 99
870 to 2100
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
27 to 36
Strength to Weight: Bending, points 18
23 to 28
Thermal Shock Resistance, points 12
27 to 36

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.050
Chromium (Cr), % 17 to 19
12 to 14
Copper (Cu), % 4.0 to 5.0
0
Iron (Fe), % 52.4 to 61
78.5 to 84.2
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 3.0 to 4.0
0.3 to 0.7
Nickel (Ni), % 15 to 16.5
3.5 to 4.5
Nitrogen (N), % 0 to 0.045
0 to 0.020
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.010
0 to 0.015