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EN 1.7706 Steel vs. EN 1.4482 Stainless Steel

Both EN 1.7706 steel and EN 1.4482 stainless steel are iron alloys. They have 74% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.7706 steel and the bottom bar is EN 1.4482 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17
34
Fatigue Strength, MPa 330
420 to 450
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 690
770 to 800
Tensile Strength: Yield (Proof), MPa 500
530 to 570

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 440
980
Melting Completion (Liquidus), °C 1470
1420
Melting Onset (Solidus), °C 1430
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
15
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 3.7
12
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 2.3
2.7
Embodied Energy, MJ/kg 32
38
Embodied Water, L/kg 57
150

Common Calculations

PREN (Pitting Resistance) 4.7
24
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
230 to 250
Resilience: Unit (Modulus of Resilience), kJ/m3 670
690 to 820
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24
28 to 29
Strength to Weight: Bending, points 22
24 to 25
Thermal Diffusivity, mm2/s 11
4.0
Thermal Shock Resistance, points 20
21 to 22

Alloy Composition

Carbon (C), % 0.15 to 0.2
0 to 0.030
Chromium (Cr), % 1.2 to 1.5
19.5 to 21.5
Copper (Cu), % 0 to 0.3
0 to 1.0
Iron (Fe), % 94.7 to 97.1
66.1 to 74.9
Manganese (Mn), % 0.5 to 0.9
4.0 to 6.0
Molybdenum (Mo), % 0.9 to 1.1
0.1 to 0.6
Nickel (Ni), % 0 to 0.4
1.5 to 3.5
Nitrogen (N), % 0
0.050 to 0.2
Phosphorus (P), % 0 to 0.020
0 to 0.035
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0.2 to 0.3
0