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EN 1.4935 Stainless Steel vs. S44625 Stainless Steel

Both EN 1.4935 stainless steel and S44625 stainless steel are iron alloys. They have 85% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4935 stainless steel and the bottom bar is S44625 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 16 to 18
22
Fatigue Strength, MPa 350 to 400
240
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
80
Shear Strength, MPa 480 to 540
370
Tensile Strength: Ultimate (UTS), MPa 780 to 880
590
Tensile Strength: Yield (Proof), MPa 570 to 670
360

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Corrosion, °C 380
450
Maximum Temperature: Mechanical, °C 740
1100
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
17
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
14
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.9
2.8
Embodied Energy, MJ/kg 42
39
Embodied Water, L/kg 100
160

Common Calculations

PREN (Pitting Resistance) 16
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
110
Resilience: Unit (Modulus of Resilience), kJ/m3 830 to 1160
310
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 31
21
Strength to Weight: Bending, points 24 to 26
20
Thermal Diffusivity, mm2/s 6.5
4.6
Thermal Shock Resistance, points 27 to 30
19

Alloy Composition

Carbon (C), % 0.17 to 0.24
0 to 0.010
Chromium (Cr), % 11 to 12.5
25 to 27.5
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 83 to 86.7
69.4 to 74.3
Manganese (Mn), % 0.3 to 0.8
0 to 0.4
Molybdenum (Mo), % 0.8 to 1.2
0.75 to 1.5
Nickel (Ni), % 0.3 to 0.8
0 to 0.5
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.025
0 to 0.020
Silicon (Si), % 0.1 to 0.5
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.020
Tungsten (W), % 0.4 to 0.6
0
Vanadium (V), % 0.2 to 0.35
0