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EN 1.7767 Steel vs. EN 1.4003 Stainless Steel

Both EN 1.7767 steel and EN 1.4003 stainless steel are iron alloys. They have a moderately high 90% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.7767 steel and the bottom bar is EN 1.4003 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
22
Fatigue Strength, MPa 320 to 340
210
Impact Strength: V-Notched Charpy, J 46
67
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
76
Shear Strength, MPa 420 to 430
340
Tensile Strength: Ultimate (UTS), MPa 670 to 690
540
Tensile Strength: Yield (Proof), MPa 460 to 500
320

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 480
720
Melting Completion (Liquidus), °C 1470
1440
Melting Onset (Solidus), °C 1430
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 4.5
6.5
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.4
1.9
Embodied Energy, MJ/kg 33
27
Embodied Water, L/kg 64
97

Common Calculations

PREN (Pitting Resistance) 6.4
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
100
Resilience: Unit (Modulus of Resilience), kJ/m3 570 to 650
260
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24
19
Strength to Weight: Bending, points 22
19
Thermal Diffusivity, mm2/s 11
6.7
Thermal Shock Resistance, points 19 to 20
19

Alloy Composition

Carbon (C), % 0.1 to 0.15
0 to 0.030
Chromium (Cr), % 2.8 to 3.3
10.5 to 12.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 93.8 to 95.8
83.9 to 89.2
Manganese (Mn), % 0.3 to 0.6
0 to 1.5
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0 to 0.25
0.3 to 1.0
Niobium (Nb), % 0 to 0.070
0
Nitrogen (N), % 0 to 0.012
0 to 0.030
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.15
0 to 1.0
Sulfur (S), % 0 to 0.0050
0 to 0.015
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0.2 to 0.3
0