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EN 1.4646 Stainless Steel vs. EN 1.1170 Steel

Both EN 1.4646 stainless steel and EN 1.1170 steel are iron alloys. They have 65% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.4646 stainless steel and the bottom bar is EN 1.1170 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
180 to 210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
16 to 17
Fatigue Strength, MPa 340
220 to 330
Impact Strength: V-Notched Charpy, J 90
28 to 35
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 500
390 to 450
Tensile Strength: Ultimate (UTS), MPa 750
640 to 730
Tensile Strength: Yield (Proof), MPa 430
330 to 500

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 910
400
Melting Completion (Liquidus), °C 1390
1460
Melting Onset (Solidus), °C 1340
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 13
2.1
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.5
Embodied Energy, MJ/kg 41
19
Embodied Water, L/kg 160
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
91 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 460
290 to 670
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
23 to 26
Strength to Weight: Bending, points 24
21 to 23
Thermal Shock Resistance, points 16
20 to 23

Alloy Composition

Carbon (C), % 0.020 to 0.1
0.25 to 0.32
Chromium (Cr), % 17 to 19
0 to 0.4
Copper (Cu), % 1.5 to 3.0
0
Iron (Fe), % 59 to 67.3
96.7 to 98.5
Manganese (Mn), % 10.5 to 12.5
1.3 to 1.7
Molybdenum (Mo), % 0 to 0.5
0 to 0.1
Nickel (Ni), % 3.5 to 4.5
0 to 0.4
Nitrogen (N), % 0.2 to 0.3
0
Phosphorus (P), % 0 to 0.050
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.035