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S31277 Stainless Steel vs. EN 1.4749 Stainless Steel

Both S31277 stainless steel and EN 1.4749 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 64% 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 1.4749 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 45
16
Fatigue Strength, MPa 380
190
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 80
80
Shear Strength, MPa 600
370
Tensile Strength: Ultimate (UTS), MPa 860
600
Tensile Strength: Yield (Proof), MPa 410
320

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 430
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 460
490
Thermal Expansion, µm/m-K 16
9.6

Otherwise Unclassified Properties

Base Metal Price, % relative 36
13
Density, g/cm3 8.1
7.6
Embodied Carbon, kg CO2/kg material 6.7
2.5
Embodied Energy, MJ/kg 90
36
Embodied Water, L/kg 220
160

Common Calculations

PREN (Pitting Resistance) 51
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
80
Resilience: Unit (Modulus of Resilience), kJ/m3 410
250
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 29
22
Strength to Weight: Bending, points 25
21
Thermal Shock Resistance, points 19
22

Alloy Composition

Carbon (C), % 0 to 0.020
0.15 to 0.2
Chromium (Cr), % 20.5 to 23
26 to 29
Copper (Cu), % 0.5 to 1.5
0
Iron (Fe), % 35.5 to 46.2
68.5 to 73.7
Manganese (Mn), % 0 to 3.0
0 to 1.0
Molybdenum (Mo), % 6.5 to 8.0
0
Nickel (Ni), % 26 to 28
0
Nitrogen (N), % 0.3 to 0.4
0.15 to 0.25
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015