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EN 1.4310 Stainless Steel vs. EN 1.4931 Steel

Both EN 1.4310 stainless steel and EN 1.4931 steel are iron alloys. They have 86% 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 1.4310 stainless steel and the bottom bar is EN 1.4931 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 270
240
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 14 to 45
17
Fatigue Strength, MPa 240 to 330
410
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 730 to 900
810
Tensile Strength: Yield (Proof), MPa 260 to 570
620

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Mechanical, °C 910
600
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
24
Thermal Expansion, µm/m-K 18
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
9.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
11

Otherwise Unclassified Properties

Base Metal Price, % relative 14
8.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.9
2.9
Embodied Energy, MJ/kg 42
42
Embodied Water, L/kg 140
100

Common Calculations

PREN (Pitting Resistance) 20
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 260
130
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 830
970
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26 to 32
29
Strength to Weight: Bending, points 23 to 27
25
Thermal Diffusivity, mm2/s 4.0
6.5
Thermal Shock Resistance, points 15 to 18
22

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.2 to 0.26
Chromium (Cr), % 16 to 19
11.3 to 12.2
Iron (Fe), % 66.4 to 78
83.2 to 86.8
Manganese (Mn), % 0 to 2.0
0.5 to 0.8
Molybdenum (Mo), % 0 to 0.8
1.0 to 1.2
Nickel (Ni), % 6.0 to 9.5
0 to 1.0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 2.0
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.020
Tungsten (W), % 0
0 to 0.5
Vanadium (V), % 0
0.25 to 0.35