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EN 1.4646 Stainless Steel vs. EN 1.7710 Steel

Both EN 1.4646 stainless steel and EN 1.7710 steel are iron alloys. They have 66% 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 1.7710 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
280 to 320
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
6.8 to 11
Fatigue Strength, MPa 340
500 to 620
Impact Strength: V-Notched Charpy, J 90
30
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 750
930 to 1070
Tensile Strength: Yield (Proof), MPa 430
800 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Maximum Temperature: Mechanical, °C 910
440
Melting Completion (Liquidus), °C 1390
1470
Melting Onset (Solidus), °C 1340
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 17
13

Otherwise Unclassified Properties

Base Metal Price, % relative 13
3.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.8
2.2
Embodied Energy, MJ/kg 41
30
Embodied Water, L/kg 160
57

Common Calculations

PREN (Pitting Resistance) 23
4.5
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
73 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 460
1680 to 2970
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
33 to 38
Strength to Weight: Bending, points 24
27 to 30
Thermal Shock Resistance, points 16
27 to 31

Alloy Composition

Carbon (C), % 0.020 to 0.1
0.12 to 0.18
Chromium (Cr), % 17 to 19
1.3 to 1.8
Copper (Cu), % 1.5 to 3.0
0
Iron (Fe), % 59 to 67.3
95.1 to 97
Manganese (Mn), % 10.5 to 12.5
0.6 to 1.0
Molybdenum (Mo), % 0 to 0.5
0.8 to 1.0
Nickel (Ni), % 3.5 to 4.5
0
Nitrogen (N), % 0.2 to 0.3
0
Phosphorus (P), % 0 to 0.050
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0
0.15 to 0.25