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EN 1.7703 Steel vs. EN 1.4865 Stainless Steel

Both EN 1.7703 steel and EN 1.4865 stainless steel are iron alloys. They have 43% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.7703 steel and the bottom bar is EN 1.4865 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
140
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
6.8
Fatigue Strength, MPa 320 to 340
120
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
76
Tensile Strength: Ultimate (UTS), MPa 670 to 690
470
Tensile Strength: Yield (Proof), MPa 460 to 500
250

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 460
1020
Melting Completion (Liquidus), °C 1470
1380
Melting Onset (Solidus), °C 1430
1330
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 39
12
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 4.2
33
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 2.5
5.8
Embodied Energy, MJ/kg 35
81
Embodied Water, L/kg 61
200

Common Calculations

PREN (Pitting Resistance) 5.6
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
27
Resilience: Unit (Modulus of Resilience), kJ/m3 570 to 650
160
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24
16
Strength to Weight: Bending, points 22
17
Thermal Diffusivity, mm2/s 11
3.1
Thermal Shock Resistance, points 19 to 20
11

Alloy Composition

Carbon (C), % 0.11 to 0.15
0.3 to 0.5
Chromium (Cr), % 2.0 to 2.5
18 to 21
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 94.6 to 96.4
34.4 to 44.7
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0.9 to 1.1
0 to 0.5
Nickel (Ni), % 0 to 0.25
36 to 39
Niobium (Nb), % 0 to 0.070
0
Nitrogen (N), % 0 to 0.012
0
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.1
1.0 to 2.5
Sulfur (S), % 0 to 0.0050
0 to 0.030
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0.25 to 0.35
0