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EN 1.4646 Stainless Steel vs. EN 1.4525 Stainless Steel

Both EN 1.4646 stainless steel and EN 1.4525 stainless steel are iron alloys. They have 87% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.4646 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, % 34
5.6 to 13
Fatigue Strength, MPa 340
480 to 540
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 750
1030 to 1250
Tensile Strength: Yield (Proof), MPa 430
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 1340
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
11

Otherwise Unclassified Properties

Base Metal Price, % relative 13
13
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.8
2.8
Embodied Energy, MJ/kg 41
39
Embodied Water, L/kg 160
130

Common Calculations

PREN (Pitting Resistance) 23
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
68 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 460
1820 to 3230
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
36 to 45
Strength to Weight: Bending, points 24
29 to 33
Thermal Shock Resistance, points 16
34 to 41

Alloy Composition

Carbon (C), % 0.020 to 0.1
0 to 0.070
Chromium (Cr), % 17 to 19
15 to 17
Copper (Cu), % 1.5 to 3.0
2.5 to 4.0
Iron (Fe), % 59 to 67.3
70.4 to 79
Manganese (Mn), % 10.5 to 12.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0 to 0.8
Nickel (Ni), % 3.5 to 4.5
3.5 to 5.5
Niobium (Nb), % 0
0 to 0.35
Nitrogen (N), % 0.2 to 0.3
0 to 0.050
Phosphorus (P), % 0 to 0.050
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.015
0 to 0.025