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EN 1.4477 Stainless Steel vs. S31277 Stainless Steel

Both EN 1.4477 stainless steel and S31277 stainless steel are iron alloys. They have 73% 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 1.4477 stainless steel and the bottom bar is S31277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 22 to 23
45
Fatigue Strength, MPa 420 to 490
380
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
80
Shear Strength, MPa 550 to 580
600
Tensile Strength: Ultimate (UTS), MPa 880 to 930
860
Tensile Strength: Yield (Proof), MPa 620 to 730
410

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 460
430
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 20
36
Density, g/cm3 7.7
8.1
Embodied Carbon, kg CO2/kg material 3.7
6.7
Embodied Energy, MJ/kg 52
90
Embodied Water, L/kg 190
220

Common Calculations

PREN (Pitting Resistance) 41
51
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180 to 190
320
Resilience: Unit (Modulus of Resilience), kJ/m3 940 to 1290
410
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 31 to 33
29
Strength to Weight: Bending, points 26 to 27
25
Thermal Shock Resistance, points 23 to 25
19

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 28 to 30
20.5 to 23
Copper (Cu), % 0 to 0.8
0.5 to 1.5
Iron (Fe), % 56.6 to 63.6
35.5 to 46.2
Manganese (Mn), % 0.8 to 1.5
0 to 3.0
Molybdenum (Mo), % 1.5 to 2.6
6.5 to 8.0
Nickel (Ni), % 5.8 to 7.5
26 to 28
Nitrogen (N), % 0.3 to 0.4
0.3 to 0.4
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.010