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S45000 Stainless Steel vs. S31277 Stainless Steel

Both S45000 stainless steel and S31277 stainless steel are iron alloys. 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 (7, in this case) are not shown.

For each property being compared, the top bar is S45000 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, % 6.8 to 14
45
Fatigue Strength, MPa 330 to 650
380
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
80
Shear Strength, MPa 590 to 830
600
Tensile Strength: Ultimate (UTS), MPa 980 to 1410
860
Tensile Strength: Yield (Proof), MPa 580 to 1310
410

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 400
430
Maximum Temperature: Mechanical, °C 840
1100
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 11
16

Otherwise Unclassified Properties

Base Metal Price, % relative 13
36
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 2.8
6.7
Embodied Energy, MJ/kg 39
90
Embodied Water, L/kg 130
220

Common Calculations

PREN (Pitting Resistance) 17
51
Resilience: Ultimate (Unit Rupture Work), MJ/m3 94 to 160
320
Resilience: Unit (Modulus of Resilience), kJ/m3 850 to 4400
410
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 35 to 50
29
Strength to Weight: Bending, points 28 to 36
25
Thermal Shock Resistance, points 33 to 47
19

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.020
Chromium (Cr), % 14 to 16
20.5 to 23
Copper (Cu), % 1.3 to 1.8
0.5 to 1.5
Iron (Fe), % 72.1 to 79.3
35.5 to 46.2
Manganese (Mn), % 0 to 1.0
0 to 3.0
Molybdenum (Mo), % 0.5 to 1.0
6.5 to 8.0
Nickel (Ni), % 5.0 to 7.0
26 to 28
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010