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EN 1.6554 Steel vs. S31730 Stainless Steel

Both EN 1.6554 steel and S31730 stainless steel are iron alloys. They have 60% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.6554 steel and the bottom bar is S31730 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230 to 280
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17 to 21
40
Fatigue Strength, MPa 380 to 520
170
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 780 to 930
540
Tensile Strength: Yield (Proof), MPa 550 to 790
200

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 420
990
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
24
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 1.7
4.6
Embodied Energy, MJ/kg 22
63
Embodied Water, L/kg 53
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
170
Resilience: Unit (Modulus of Resilience), kJ/m3 810 to 1650
99
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27 to 33
19
Strength to Weight: Bending, points 24 to 27
18
Thermal Shock Resistance, points 23 to 27
12

Alloy Composition

Carbon (C), % 0.23 to 0.28
0 to 0.030
Chromium (Cr), % 0.7 to 0.9
17 to 19
Copper (Cu), % 0 to 0.3
4.0 to 5.0
Iron (Fe), % 94.6 to 97.3
52.4 to 61
Manganese (Mn), % 0.6 to 0.9
0 to 2.0
Molybdenum (Mo), % 0.2 to 0.3
3.0 to 4.0
Nickel (Ni), % 1.0 to 2.0
15 to 16.5
Nitrogen (N), % 0
0 to 0.045
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.010
Vanadium (V), % 0 to 0.030
0