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EN 1.3956 Stainless Steel vs. EN 1.4594 Stainless Steel

Both EN 1.3956 stainless steel and EN 1.4594 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 (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.3956 stainless steel and the bottom bar is EN 1.4594 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 27
11 to 17
Fatigue Strength, MPa 240
490 to 620
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 650
1020 to 1170
Tensile Strength: Yield (Proof), MPa 330
810 to 1140

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 460
450
Maximum Temperature: Mechanical, °C 1080
820
Melting Completion (Liquidus), °C 1420
1450
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 22
15
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 4.8
3.2
Embodied Energy, MJ/kg 68
45
Embodied Water, L/kg 180
130

Common Calculations

PREN (Pitting Resistance) 34
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
110 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 270
1660 to 3320
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23
36 to 41
Strength to Weight: Bending, points 21
29 to 31
Thermal Shock Resistance, points 18
34 to 39

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.070
Chromium (Cr), % 20.5 to 23.5
13 to 15
Copper (Cu), % 0
1.2 to 2.0
Iron (Fe), % 51.9 to 62.1
72.6 to 79.5
Manganese (Mn), % 4.0 to 6.0
0 to 1.0
Molybdenum (Mo), % 1.5 to 3.0
1.2 to 2.0
Nickel (Ni), % 11.5 to 13.5
5.0 to 6.0
Niobium (Nb), % 0.1 to 0.3
0.15 to 0.6
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.030
0 to 0.015
Vanadium (V), % 0.1 to 0.3
0