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EN 1.7767 Steel vs. EN 1.4521 Stainless Steel

Both EN 1.7767 steel and EN 1.4521 stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.7767 steel and the bottom bar is EN 1.4521 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
23
Fatigue Strength, MPa 320 to 340
230
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
78
Shear Strength, MPa 420 to 430
330
Tensile Strength: Ultimate (UTS), MPa 670 to 690
520
Tensile Strength: Yield (Proof), MPa 460 to 500
340

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 480
930
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
23
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 4.5
12
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 2.4
2.8
Embodied Energy, MJ/kg 33
39
Embodied Water, L/kg 64
130

Common Calculations

PREN (Pitting Resistance) 6.4
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
100
Resilience: Unit (Modulus of Resilience), kJ/m3 570 to 650
280
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24
19
Strength to Weight: Bending, points 22
19
Thermal Diffusivity, mm2/s 11
6.2
Thermal Shock Resistance, points 19 to 20
18

Alloy Composition

Carbon (C), % 0.1 to 0.15
0 to 0.025
Chromium (Cr), % 2.8 to 3.3
17 to 20
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 93.8 to 95.8
74.6 to 81.1
Manganese (Mn), % 0.3 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.9 to 1.1
1.8 to 2.5
Nickel (Ni), % 0 to 0.25
0
Niobium (Nb), % 0 to 0.070
0
Nitrogen (N), % 0 to 0.012
0 to 0.030
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.15
0 to 1.0
Sulfur (S), % 0 to 0.0050
0 to 0.015
Titanium (Ti), % 0 to 0.030
0.15 to 0.8
Vanadium (V), % 0.2 to 0.3
0