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EN 1.4307 Stainless Steel vs. EN 1.7379 Steel

Both EN 1.4307 stainless steel and EN 1.7379 steel are iron alloys. They have 74% 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 1.4307 stainless steel and the bottom bar is EN 1.7379 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 270
200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 46
21
Fatigue Strength, MPa 190 to 320
320
Impact Strength: V-Notched Charpy, J 91 to 94
45
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Tensile Strength: Ultimate (UTS), MPa 590 to 900
670
Tensile Strength: Yield (Proof), MPa 200 to 570
460

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Maximum Temperature: Mechanical, °C 940
460
Melting Completion (Liquidus), °C 1430
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 15
3.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.0
1.8
Embodied Energy, MJ/kg 43
23
Embodied Water, L/kg 140
59

Common Calculations

PREN (Pitting Resistance) 19
5.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 210
120
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 810
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), % 17.5 to 19.5
2.0 to 2.5
Iron (Fe), % 66.8 to 74.5
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), % 8.0 to 10.5
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