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EN 1.4525 Stainless Steel vs. EN 1.3956 Stainless Steel

Both EN 1.4525 stainless steel and EN 1.3956 stainless steel are iron alloys. They have 79% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4525 stainless steel and the bottom bar is EN 1.3956 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 5.6 to 13
27
Fatigue Strength, MPa 480 to 540
240
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 1030 to 1250
650
Tensile Strength: Yield (Proof), MPa 840 to 1120
330

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 430
460
Maximum Temperature: Mechanical, °C 860
1080
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 13
22
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.8
4.8
Embodied Energy, MJ/kg 39
68
Embodied Water, L/kg 130
180

Common Calculations

PREN (Pitting Resistance) 18
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 68 to 130
150
Resilience: Unit (Modulus of Resilience), kJ/m3 1820 to 3230
270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 36 to 45
23
Strength to Weight: Bending, points 29 to 33
21
Thermal Shock Resistance, points 34 to 41
18

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.060
Chromium (Cr), % 15 to 17
20.5 to 23.5
Copper (Cu), % 2.5 to 4.0
0
Iron (Fe), % 70.4 to 79
51.9 to 62.1
Manganese (Mn), % 0 to 1.0
4.0 to 6.0
Molybdenum (Mo), % 0 to 0.8
1.5 to 3.0
Nickel (Ni), % 3.5 to 5.5
11.5 to 13.5
Niobium (Nb), % 0 to 0.35
0.1 to 0.3
Nitrogen (N), % 0 to 0.050
0.2 to 0.4
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030
Vanadium (V), % 0
0.1 to 0.3