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EN 1.4935 Stainless Steel vs. S40977 Stainless Steel

Both EN 1.4935 stainless steel and S40977 stainless steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 32 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 1.4935 stainless steel and the bottom bar is S40977 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 16 to 18
21
Fatigue Strength, MPa 350 to 400
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Shear Strength, MPa 480 to 540
320
Tensile Strength: Ultimate (UTS), MPa 780 to 880
510
Tensile Strength: Yield (Proof), MPa 570 to 670
310

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Corrosion, °C 380
390
Maximum Temperature: Mechanical, °C 740
720
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 24
25
Thermal Expansion, µm/m-K 11
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
6.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.9
1.9
Embodied Energy, MJ/kg 42
27
Embodied Water, L/kg 100
97

Common Calculations

PREN (Pitting Resistance) 16
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
92
Resilience: Unit (Modulus of Resilience), kJ/m3 830 to 1160
250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 31
18
Strength to Weight: Bending, points 24 to 26
18
Thermal Diffusivity, mm2/s 6.5
6.7
Thermal Shock Resistance, points 27 to 30
18

Alloy Composition

Carbon (C), % 0.17 to 0.24
0 to 0.030
Chromium (Cr), % 11 to 12.5
10.5 to 12.5
Iron (Fe), % 83 to 86.7
83.9 to 89.2
Manganese (Mn), % 0.3 to 0.8
0 to 1.5
Molybdenum (Mo), % 0.8 to 1.2
0
Nickel (Ni), % 0.3 to 0.8
0.3 to 1.0
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.1 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Tungsten (W), % 0.4 to 0.6
0
Vanadium (V), % 0.2 to 0.35
0