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EN 1.4951 Stainless Steel vs. S44625 Stainless Steel

Both EN 1.4951 stainless steel and S44625 stainless steel are iron alloys. They have 79% 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 1.4951 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, % 38
22
Fatigue Strength, MPa 190
240
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 79
80
Shear Strength, MPa 430
370
Tensile Strength: Ultimate (UTS), MPa 630
590
Tensile Strength: Yield (Proof), MPa 220
360

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 450
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
17
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 25
14
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.3
2.8
Embodied Energy, MJ/kg 61
39
Embodied Water, L/kg 190
160

Common Calculations

PREN (Pitting Resistance) 26
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
110
Resilience: Unit (Modulus of Resilience), kJ/m3 130
310
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
21
Strength to Weight: Bending, points 21
20
Thermal Diffusivity, mm2/s 3.9
4.6
Thermal Shock Resistance, points 14
19

Alloy Composition

Carbon (C), % 0.040 to 0.080
0 to 0.010
Chromium (Cr), % 24 to 26
25 to 27.5
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 49.1 to 57
69.4 to 74.3
Manganese (Mn), % 0 to 2.0
0 to 0.4
Molybdenum (Mo), % 0
0.75 to 1.5
Nickel (Ni), % 19 to 22
0 to 0.5
Nitrogen (N), % 0 to 0.1
0 to 0.015
Phosphorus (P), % 0 to 0.035
0 to 0.020
Silicon (Si), % 0 to 0.7
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.020