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EN 1.4594 Stainless Steel vs. EN 1.4742 Stainless Steel

Both EN 1.4594 stainless steel and EN 1.4742 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4594 stainless steel and the bottom bar is EN 1.4742 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11 to 17
17
Fatigue Strength, MPa 490 to 620
180
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 620 to 700
370
Tensile Strength: Ultimate (UTS), MPa 1020 to 1170
600
Tensile Strength: Yield (Proof), MPa 810 to 1140
300

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 450
410
Maximum Temperature: Mechanical, °C 820
1000
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 16
19
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 15
9.0
Density, g/cm3 7.9
7.6
Embodied Carbon, kg CO2/kg material 3.2
2.2
Embodied Energy, MJ/kg 45
32
Embodied Water, L/kg 130
130

Common Calculations

PREN (Pitting Resistance) 19
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 190
84
Resilience: Unit (Modulus of Resilience), kJ/m3 1660 to 3320
230
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 36 to 41
22
Strength to Weight: Bending, points 29 to 31
21
Thermal Diffusivity, mm2/s 4.4
5.1
Thermal Shock Resistance, points 34 to 39
21

Alloy Composition

Aluminum (Al), % 0
0.7 to 1.2
Carbon (C), % 0 to 0.070
0 to 0.12
Chromium (Cr), % 13 to 15
17 to 19
Copper (Cu), % 1.2 to 2.0
0
Iron (Fe), % 72.6 to 79.5
77.2 to 81.6
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 1.2 to 2.0
0
Nickel (Ni), % 5.0 to 6.0
0
Niobium (Nb), % 0.15 to 0.6
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.7
0.7 to 1.4
Sulfur (S), % 0 to 0.015
0 to 0.015