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EN 1.4371 Stainless Steel vs. EN 1.4568 Stainless Steel

Both EN 1.4371 stainless steel and EN 1.4568 stainless steel are iron alloys. They have a moderately high 93% 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 1.4371 stainless steel and the bottom bar is EN 1.4568 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45 to 51
2.3 to 21
Fatigue Strength, MPa 290 to 340
220 to 670
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 520 to 540
520 to 930
Tensile Strength: Ultimate (UTS), MPa 740 to 750
830 to 1620
Tensile Strength: Yield (Proof), MPa 320 to 340
330 to 1490

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 410
410
Maximum Temperature: Mechanical, °C 880
890
Melting Completion (Liquidus), °C 1410
1420
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 17
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 12
13
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 38
40
Embodied Water, L/kg 140
140

Common Calculations

PREN (Pitting Resistance) 20
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270 to 310
36 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 300
290 to 5710
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
30 to 58
Strength to Weight: Bending, points 24
25 to 40
Thermal Diffusivity, mm2/s 4.0
4.3
Thermal Shock Resistance, points 16
23 to 46

Alloy Composition

Aluminum (Al), % 0
0.7 to 1.5
Carbon (C), % 0 to 0.030
0 to 0.090
Chromium (Cr), % 16 to 17.5
16 to 18
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 66.7 to 74.4
70.9 to 76.8
Manganese (Mn), % 6.0 to 8.0
0 to 1.0
Nickel (Ni), % 3.5 to 5.5
6.5 to 7.8
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.015
0 to 0.015