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EN 1.4542 Stainless Steel vs. S31730 Stainless Steel

Both EN 1.4542 stainless steel and S31730 stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 28 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 EN 1.4542 stainless steel and the bottom bar is S31730 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 5.7 to 20
40
Fatigue Strength, MPa 370 to 640
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 550 to 860
370
Tensile Strength: Ultimate (UTS), MPa 880 to 1470
540
Tensile Strength: Yield (Proof), MPa 580 to 1300
200

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 440
420
Maximum Temperature: Mechanical, °C 860
990
Melting Completion (Liquidus), °C 1430
1430
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 11
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) 17
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 62 to 160
170
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 4360
99
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 31 to 52
19
Strength to Weight: Bending, points 26 to 37
18
Thermal Shock Resistance, points 29 to 49
12

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.030
Chromium (Cr), % 15 to 17
17 to 19
Copper (Cu), % 3.0 to 5.0
4.0 to 5.0
Iron (Fe), % 69.6 to 79
52.4 to 61
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0 to 0.6
3.0 to 4.0
Nickel (Ni), % 3.0 to 5.0
15 to 16.5
Niobium (Nb), % 0 to 0.45
0
Nitrogen (N), % 0
0 to 0.045
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.7
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.010