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AISI 440C Stainless Steel vs. EN 1.4525 Stainless Steel

Both AISI 440C stainless steel and EN 1.4525 stainless steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 30 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 AISI 440C stainless steel and the bottom bar is EN 1.4525 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 2.0 to 14
5.6 to 13
Fatigue Strength, MPa 260 to 840
480 to 540
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 710 to 1970
1030 to 1250
Tensile Strength: Yield (Proof), MPa 450 to 1900
840 to 1120

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 390
430
Maximum Temperature: Mechanical, °C 870
860
Melting Completion (Liquidus), °C 1480
1430
Melting Onset (Solidus), °C 1370
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 22
18
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
13
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.2
2.8
Embodied Energy, MJ/kg 31
39
Embodied Water, L/kg 120
130

Common Calculations

PREN (Pitting Resistance) 18
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 39 to 88
68 to 130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26 to 71
36 to 45
Strength to Weight: Bending, points 23 to 46
29 to 33
Thermal Diffusivity, mm2/s 6.0
4.7
Thermal Shock Resistance, points 26 to 71
34 to 41

Alloy Composition

Carbon (C), % 1.0 to 1.2
0 to 0.070
Chromium (Cr), % 16 to 18
15 to 17
Copper (Cu), % 0
2.5 to 4.0
Iron (Fe), % 78 to 83.1
70.4 to 79
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.75
0 to 0.8
Nickel (Ni), % 0
3.5 to 5.5
Niobium (Nb), % 0
0 to 0.35
Nitrogen (N), % 0
0 to 0.050
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.015
0 to 0.025

Comparable Variants