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EN 1.4595 Stainless Steel vs. EN 1.4594 Stainless Steel

Both EN 1.4595 stainless steel and EN 1.4594 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4595 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, % 29
11 to 17
Fatigue Strength, MPa 180
490 to 620
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Shear Strength, MPa 310
620 to 700
Tensile Strength: Ultimate (UTS), MPa 470
1020 to 1170
Tensile Strength: Yield (Proof), MPa 250
810 to 1140

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 460
450
Maximum Temperature: Mechanical, °C 810
820
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 30
16
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
15
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.4
3.2
Embodied Energy, MJ/kg 34
45
Embodied Water, L/kg 110
130

Common Calculations

PREN (Pitting Resistance) 15
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 150
1660 to 3320
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
36 to 41
Strength to Weight: Bending, points 17
29 to 31
Thermal Diffusivity, mm2/s 8.1
4.4
Thermal Shock Resistance, points 17
34 to 39

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.070
Chromium (Cr), % 14 to 16
13 to 15
Copper (Cu), % 0
1.2 to 2.0
Iron (Fe), % 81.3 to 85.8
72.6 to 79.5
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0
1.2 to 2.0
Nickel (Ni), % 0
5.0 to 6.0
Niobium (Nb), % 0.2 to 0.6
0.15 to 0.6
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.015
0 to 0.015