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EN 1.4378 Stainless Steel vs. EN 1.4525 Stainless Steel

Both EN 1.4378 stainless steel and EN 1.4525 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.4378 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, % 14 to 34
5.6 to 13
Fatigue Strength, MPa 340 to 550
480 to 540
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 760 to 1130
1030 to 1250
Tensile Strength: Yield (Proof), MPa 430 to 970
840 to 1120

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 410
430
Maximum Temperature: Mechanical, °C 910
860
Melting Completion (Liquidus), °C 1390
1430
Melting Onset (Solidus), °C 1350
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
11

Otherwise Unclassified Properties

Base Metal Price, % relative 12
13
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 39
39
Embodied Water, L/kg 150
130

Common Calculations

PREN (Pitting Resistance) 23
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 220
68 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 470 to 2370
1820 to 3230
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 41
36 to 45
Strength to Weight: Bending, points 24 to 31
29 to 33
Thermal Shock Resistance, points 16 to 23
34 to 41

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.070
Chromium (Cr), % 17 to 19
15 to 17
Copper (Cu), % 0
2.5 to 4.0
Iron (Fe), % 61.2 to 69
70.4 to 79
Manganese (Mn), % 11.5 to 14.5
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.8
Nickel (Ni), % 2.3 to 3.7
3.5 to 5.5
Niobium (Nb), % 0
0 to 0.35
Nitrogen (N), % 0.2 to 0.4
0 to 0.050
Phosphorus (P), % 0 to 0.060
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.025

Comparable Variants