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S31277 Stainless Steel vs. EN 1.4988 Stainless Steel

Both S31277 stainless steel and EN 1.4988 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 (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 1.4988 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 45
34
Fatigue Strength, MPa 380
230
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
77
Shear Strength, MPa 600
430
Tensile Strength: Ultimate (UTS), MPa 860
640
Tensile Strength: Yield (Proof), MPa 410
290

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 430
520
Maximum Temperature: Mechanical, °C 1100
920
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 460
470
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 36
23
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 6.7
6.0
Embodied Energy, MJ/kg 90
89
Embodied Water, L/kg 220
150

Common Calculations

PREN (Pitting Resistance) 51
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
180
Resilience: Unit (Modulus of Resilience), kJ/m3 410
210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29
23
Strength to Weight: Bending, points 25
21
Thermal Shock Resistance, points 19
14

Alloy Composition

Carbon (C), % 0 to 0.020
0.040 to 0.1
Chromium (Cr), % 20.5 to 23
15.5 to 17.5
Copper (Cu), % 0.5 to 1.5
0
Iron (Fe), % 35.5 to 46.2
62.1 to 69.5
Manganese (Mn), % 0 to 3.0
0 to 1.5
Molybdenum (Mo), % 6.5 to 8.0
1.1 to 1.5
Nickel (Ni), % 26 to 28
12.5 to 14.5
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0.3 to 0.4
0.060 to 0.14
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.5
0.3 to 0.6
Sulfur (S), % 0 to 0.010
0 to 0.015
Vanadium (V), % 0
0.6 to 0.85