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EN 1.4057 Stainless Steel vs. S31730 Stainless Steel

Both EN 1.4057 stainless steel and S31730 stainless steel are iron alloys. They have 76% 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 EN 1.4057 stainless steel and the bottom bar is S31730 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11 to 17
40
Fatigue Strength, MPa 320 to 430
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 520 to 580
370
Tensile Strength: Ultimate (UTS), MPa 840 to 980
540
Tensile Strength: Yield (Proof), MPa 530 to 790
200

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 400
420
Maximum Temperature: Mechanical, °C 850
990
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1390
1390
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 10
16

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
24
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 2.2
4.6
Embodied Energy, MJ/kg 32
63
Embodied Water, L/kg 120
180

Common Calculations

PREN (Pitting Resistance) 16
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 96 to 130
170
Resilience: Unit (Modulus of Resilience), kJ/m3 700 to 1610
99
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 30 to 35
19
Strength to Weight: Bending, points 26 to 28
18
Thermal Shock Resistance, points 30 to 35
12

Alloy Composition

Carbon (C), % 0.12 to 0.22
0 to 0.030
Chromium (Cr), % 15 to 17
17 to 19
Copper (Cu), % 0
4.0 to 5.0
Iron (Fe), % 77.7 to 83.4
52.4 to 61
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 1.5 to 2.5
15 to 16.5
Nitrogen (N), % 0
0 to 0.045
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.010