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EN 1.4310 Stainless Steel vs. EN 1.6957 Steel

Both EN 1.4310 stainless steel and EN 1.6957 steel are iron alloys. They have 78% of their average alloy composition in common. There are 32 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 1.4310 stainless steel and the bottom bar is EN 1.6957 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 270
280
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 45
18
Fatigue Strength, MPa 240 to 330
530
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 510 to 550
570
Tensile Strength: Ultimate (UTS), MPa 730 to 900
930
Tensile Strength: Yield (Proof), MPa 260 to 570
780

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 910
450
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
47
Thermal Expansion, µm/m-K 18
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 14
5.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.9
2.1
Embodied Energy, MJ/kg 42
29
Embodied Water, L/kg 140
60

Common Calculations

PREN (Pitting Resistance) 20
2.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 260
160
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 830
1630
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26 to 32
33
Strength to Weight: Bending, points 23 to 27
27
Thermal Diffusivity, mm2/s 4.0
13
Thermal Shock Resistance, points 15 to 18
27

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.22 to 0.32
Chromium (Cr), % 16 to 19
1.2 to 1.8
Iron (Fe), % 66.4 to 78
92.7 to 94.7
Manganese (Mn), % 0 to 2.0
0.15 to 0.4
Molybdenum (Mo), % 0 to 0.8
0.25 to 0.45
Nickel (Ni), % 6.0 to 9.5
3.4 to 4.0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.010
Silicon (Si), % 0 to 2.0
0 to 0.15
Sulfur (S), % 0 to 0.015
0 to 0.0070
Vanadium (V), % 0
0.050 to 0.15