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EN 1.4306 Stainless Steel vs. EN 1.7379 Steel

Both EN 1.4306 stainless steel and EN 1.7379 steel are iron alloys. They have 72% 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 1.4306 stainless steel and the bottom bar is EN 1.7379 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 45
21
Fatigue Strength, MPa 190 to 330
320
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Tensile Strength: Ultimate (UTS), MPa 580 to 900
670
Tensile Strength: Yield (Proof), MPa 210 to 570
460

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Maximum Temperature: Mechanical, °C 960
460
Melting Completion (Liquidus), °C 1420
1470
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
39
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 16
3.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.2
1.8
Embodied Energy, MJ/kg 45
23
Embodied Water, L/kg 150
59

Common Calculations

PREN (Pitting Resistance) 20
5.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 200
120
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 820
550
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 32
24
Strength to Weight: Bending, points 20 to 27
22
Thermal Diffusivity, mm2/s 4.0
11
Thermal Shock Resistance, points 13 to 20
19

Alloy Composition

Carbon (C), % 0 to 0.030
0.13 to 0.2
Chromium (Cr), % 18 to 20
2.0 to 2.5
Iron (Fe), % 64.8 to 72
94.5 to 96.5
Manganese (Mn), % 0 to 2.0
0.5 to 0.9
Molybdenum (Mo), % 0
0.9 to 1.2
Nickel (Ni), % 10 to 12
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.030