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EN 1.4912 Stainless Steel vs. S39277 Stainless Steel

Both EN 1.4912 stainless steel and S39277 stainless steel are iron alloys. They have 87% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4912 stainless steel and the bottom bar is S39277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
250
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
28
Fatigue Strength, MPa 200
480
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
80
Shear Strength, MPa 420
600
Tensile Strength: Ultimate (UTS), MPa 610
930
Tensile Strength: Yield (Proof), MPa 230
660

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 520
450
Maximum Temperature: Mechanical, °C 940
1100
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
16
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 20
23
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.8
4.2
Embodied Energy, MJ/kg 55
59
Embodied Water, L/kg 140
180

Common Calculations

PREN (Pitting Resistance) 18
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
240
Resilience: Unit (Modulus of Resilience), kJ/m3 130
1070
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
33
Strength to Weight: Bending, points 20
27
Thermal Diffusivity, mm2/s 4.2
4.2
Thermal Shock Resistance, points 14
26

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.025
Chromium (Cr), % 17 to 19
24 to 26
Copper (Cu), % 0
1.2 to 2.0
Iron (Fe), % 64.6 to 73.6
56.8 to 64.3
Manganese (Mn), % 0 to 2.0
0 to 0.8
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 9.0 to 12
6.5 to 8.0
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0
0.23 to 0.33
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.015
0 to 0.0020
Tungsten (W), % 0
0.8 to 1.2