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S31730 Stainless Steel vs. EN 1.4477 Stainless Steel

Both S31730 stainless steel and EN 1.4477 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is S31730 stainless steel and the bottom bar is EN 1.4477 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
270
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 40
22 to 23
Fatigue Strength, MPa 170
420 to 490
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
81
Shear Strength, MPa 370
550 to 580
Tensile Strength: Ultimate (UTS), MPa 540
880 to 930
Tensile Strength: Yield (Proof), MPa 200
620 to 730

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 420
460
Maximum Temperature: Mechanical, °C 990
1100
Melting Completion (Liquidus), °C 1430
1430
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 24
20
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 4.6
3.7
Embodied Energy, MJ/kg 63
52
Embodied Water, L/kg 180
190

Common Calculations

PREN (Pitting Resistance) 30
41
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
180 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 99
940 to 1290
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
31 to 33
Strength to Weight: Bending, points 18
26 to 27
Thermal Shock Resistance, points 12
23 to 25

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 17 to 19
28 to 30
Copper (Cu), % 4.0 to 5.0
0 to 0.8
Iron (Fe), % 52.4 to 61
56.6 to 63.6
Manganese (Mn), % 0 to 2.0
0.8 to 1.5
Molybdenum (Mo), % 3.0 to 4.0
1.5 to 2.6
Nickel (Ni), % 15 to 16.5
5.8 to 7.5
Nitrogen (N), % 0 to 0.045
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 0.010
0 to 0.015