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EN 1.4857 Stainless Steel vs. S31277 Stainless Steel

Both EN 1.4857 stainless steel and S31277 stainless steel are iron alloys. They have 87% of their average alloy composition in common. There are 27 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 1.4857 stainless steel and the bottom bar is S31277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 6.7
45
Fatigue Strength, MPa 120
380
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 500
860
Tensile Strength: Yield (Proof), MPa 250
410

Thermal Properties

Latent Heat of Fusion, J/g 330
310
Maximum Temperature: Corrosion, °C 440
430
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1370
1460
Melting Onset (Solidus), °C 1320
1410
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 34
36
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 5.7
6.7
Embodied Energy, MJ/kg 81
90
Embodied Water, L/kg 220
220

Common Calculations

PREN (Pitting Resistance) 26
51
Resilience: Ultimate (Unit Rupture Work), MJ/m3 28
320
Resilience: Unit (Modulus of Resilience), kJ/m3 150
410
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
29
Strength to Weight: Bending, points 18
25
Thermal Shock Resistance, points 11
19

Alloy Composition

Carbon (C), % 0.3 to 0.5
0 to 0.020
Chromium (Cr), % 24 to 27
20.5 to 23
Copper (Cu), % 0
0.5 to 1.5
Iron (Fe), % 31.4 to 41.7
35.5 to 46.2
Manganese (Mn), % 0 to 2.0
0 to 3.0
Molybdenum (Mo), % 0 to 0.5
6.5 to 8.0
Nickel (Ni), % 33 to 36
26 to 28
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 1.0 to 2.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010