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EN 1.7710 Steel vs. EN 1.4618 Stainless Steel

Both EN 1.7710 steel and EN 1.4618 stainless steel are iron alloys. They have 70% 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 1.7710 steel and the bottom bar is EN 1.4618 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280 to 320
200 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 6.8 to 11
51
Fatigue Strength, MPa 500 to 620
240 to 250
Impact Strength: V-Notched Charpy, J 30
90 to 91
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 930 to 1070
680 to 700
Tensile Strength: Yield (Proof), MPa 800 to 1060
250 to 260

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Maximum Temperature: Mechanical, °C 440
900
Melting Completion (Liquidus), °C 1470
1400
Melting Onset (Solidus), °C 1430
1360
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 41
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 3.5
13
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.2
2.7
Embodied Energy, MJ/kg 30
39
Embodied Water, L/kg 57
150

Common Calculations

PREN (Pitting Resistance) 4.5
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 73 to 100
270 to 280
Resilience: Unit (Modulus of Resilience), kJ/m3 1680 to 2970
160 to 170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 33 to 38
24 to 25
Strength to Weight: Bending, points 27 to 30
22 to 23
Thermal Diffusivity, mm2/s 11
4.0
Thermal Shock Resistance, points 27 to 31
15 to 16

Alloy Composition

Carbon (C), % 0.12 to 0.18
0 to 0.1
Chromium (Cr), % 1.3 to 1.8
16.5 to 18.5
Copper (Cu), % 0
1.0 to 2.5
Iron (Fe), % 95.1 to 97
62.7 to 72.5
Manganese (Mn), % 0.6 to 1.0
5.5 to 9.5
Molybdenum (Mo), % 0.8 to 1.0
0
Nickel (Ni), % 0
4.5 to 5.5
Nitrogen (N), % 0
0 to 0.15
Phosphorus (P), % 0 to 0.025
0 to 0.070
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.010
Vanadium (V), % 0.15 to 0.25
0

Comparable Variants