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EN 1.4404 Stainless Steel vs. EN 1.1170 Steel

Both EN 1.4404 stainless steel and EN 1.1170 steel are iron alloys. They have 69% 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 1.4404 stainless steel and the bottom bar is EN 1.1170 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
180 to 210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 43
16 to 17
Fatigue Strength, MPa 220 to 320
220 to 330
Impact Strength: V-Notched Charpy, J 91 to 93
28 to 35
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 420 to 550
390 to 450
Tensile Strength: Ultimate (UTS), MPa 600 to 900
640 to 730
Tensile Strength: Yield (Proof), MPa 240 to 570
330 to 500

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 950
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
50
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 19
2.1
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.8
1.5
Embodied Energy, MJ/kg 52
19
Embodied Water, L/kg 150
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 210
91 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 800
290 to 670
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 32
23 to 26
Strength to Weight: Bending, points 20 to 26
21 to 23
Thermal Diffusivity, mm2/s 4.0
13
Thermal Shock Resistance, points 13 to 20
20 to 23

Alloy Composition

Carbon (C), % 0 to 0.030
0.25 to 0.32
Chromium (Cr), % 16.5 to 18.5
0 to 0.4
Iron (Fe), % 62.8 to 71.5
96.7 to 98.5
Manganese (Mn), % 0 to 2.0
1.3 to 1.7
Molybdenum (Mo), % 2.0 to 2.5
0 to 0.1
Nickel (Ni), % 10 to 13
0 to 0.4
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.035

Comparable Variants