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EN 1.3549 Stainless Steel vs. S31277 Stainless Steel

Both EN 1.3549 stainless steel and S31277 stainless steel are iron alloys. They have 61% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is EN 1.3549 stainless steel and the bottom bar is S31277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 730
860

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 400
430
Maximum Temperature: Mechanical, °C 910
1100
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 10
16

Otherwise Unclassified Properties

Base Metal Price, % relative 10
36
Density, g/cm3 7.7
8.1
Embodied Carbon, kg CO2/kg material 2.6
6.7
Embodied Energy, MJ/kg 37
90
Embodied Water, L/kg 130
220

Common Calculations

PREN (Pitting Resistance) 22
51
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
29
Strength to Weight: Bending, points 24
25
Thermal Shock Resistance, points 26
19

Alloy Composition

Carbon (C), % 0.85 to 1.0
0 to 0.020
Chromium (Cr), % 17 to 19
20.5 to 23
Copper (Cu), % 0
0.5 to 1.5
Iron (Fe), % 77.5 to 82
35.5 to 46.2
Manganese (Mn), % 0 to 1.0
0 to 3.0
Molybdenum (Mo), % 0.9 to 1.3
6.5 to 8.0
Nickel (Ni), % 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
Vanadium (V), % 0.070 to 0.12
0