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EN 1.4922 Stainless Steel vs. EN 1.7703 Steel

Both EN 1.4922 stainless steel and EN 1.7703 steel are iron alloys. They have a moderately high 90% 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 1.4922 stainless steel and the bottom bar is EN 1.7703 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
20
Fatigue Strength, MPa 330
320 to 340
Impact Strength: V-Notched Charpy, J 38
46
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
74
Shear Strength, MPa 470
420 to 430
Tensile Strength: Ultimate (UTS), MPa 770
670 to 690
Tensile Strength: Yield (Proof), MPa 550
460 to 500

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 720
460
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 24
39
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
4.2
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.8
2.5
Embodied Energy, MJ/kg 40
35
Embodied Water, L/kg 100
61

Common Calculations

PREN (Pitting Resistance) 15
5.6
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 770
570 to 650
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
24
Strength to Weight: Bending, points 24
22
Thermal Diffusivity, mm2/s 6.5
11
Thermal Shock Resistance, points 27
19 to 20

Alloy Composition

Carbon (C), % 0.17 to 0.23
0.11 to 0.15
Chromium (Cr), % 10 to 12.5
2.0 to 2.5
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 83.5 to 88.2
94.6 to 96.4
Manganese (Mn), % 0.3 to 1.0
0.3 to 0.6
Molybdenum (Mo), % 0.8 to 1.2
0.9 to 1.1
Nickel (Ni), % 0.3 to 0.8
0 to 0.25
Niobium (Nb), % 0
0 to 0.070
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0 to 0.025
0 to 0.015
Silicon (Si), % 0 to 0.4
0 to 0.1
Sulfur (S), % 0 to 0.015
0 to 0.0050
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0.2 to 0.35
0.25 to 0.35