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EN 1.4742 Stainless Steel vs. EN 1.8515 Steel

Both EN 1.4742 stainless steel and EN 1.8515 steel are iron alloys. They have 83% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4742 stainless steel and the bottom bar is EN 1.8515 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
340
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
11
Fatigue Strength, MPa 180
580
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Shear Strength, MPa 370
680
Tensile Strength: Ultimate (UTS), MPa 600
1130
Tensile Strength: Yield (Proof), MPa 300
940

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1000
470
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 19
40
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
3.5
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.2
1.6
Embodied Energy, MJ/kg 32
22
Embodied Water, L/kg 130
60

Common Calculations

PREN (Pitting Resistance) 18
4.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 84
120
Resilience: Unit (Modulus of Resilience), kJ/m3 230
2310
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
40
Strength to Weight: Bending, points 21
31
Thermal Diffusivity, mm2/s 5.1
11
Thermal Shock Resistance, points 21
33

Alloy Composition

Aluminum (Al), % 0.7 to 1.2
0
Carbon (C), % 0 to 0.12
0.28 to 0.35
Chromium (Cr), % 17 to 19
2.8 to 3.3
Iron (Fe), % 77.2 to 81.6
94.7 to 96.5
Manganese (Mn), % 0 to 1.0
0.4 to 0.7
Molybdenum (Mo), % 0
0.3 to 0.5
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0.7 to 1.4
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.035