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S31277 Stainless Steel vs. EN 1.4640 Stainless Steel

Both S31277 stainless steel and EN 1.4640 stainless steel are iron alloys. They have 68% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S31277 stainless steel and the bottom bar is EN 1.4640 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 45
51
Fatigue Strength, MPa 380
230 to 250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
77
Shear Strength, MPa 600
440 to 460
Tensile Strength: Ultimate (UTS), MPa 860
620 to 650
Tensile Strength: Yield (Proof), MPa 410
240 to 260

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 430
420
Maximum Temperature: Mechanical, °C 1100
930
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 36
14
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 6.7
2.8
Embodied Energy, MJ/kg 90
40
Embodied Water, L/kg 220
150

Common Calculations

PREN (Pitting Resistance) 51
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
250 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 410
150 to 170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29
22 to 23
Strength to Weight: Bending, points 25
21
Thermal Shock Resistance, points 19
14 to 15

Alloy Composition

Carbon (C), % 0 to 0.020
0.030 to 0.080
Chromium (Cr), % 20.5 to 23
18 to 19
Copper (Cu), % 0.5 to 1.5
1.3 to 2.0
Iron (Fe), % 35.5 to 46.2
67.4 to 73.6
Manganese (Mn), % 0 to 3.0
1.5 to 4.0
Molybdenum (Mo), % 6.5 to 8.0
0
Nickel (Ni), % 26 to 28
5.5 to 6.9
Nitrogen (N), % 0.3 to 0.4
0.030 to 0.11
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.015