MakeItFrom.com
Menu (ESC)

EN 1.4958 Stainless Steel vs. EN 1.4931 Steel

Both EN 1.4958 stainless steel and EN 1.4931 steel are iron alloys. They have 59% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4958 stainless steel and the bottom bar is EN 1.4931 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
17
Fatigue Strength, MPa 170
410
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 630
810
Tensile Strength: Yield (Proof), MPa 190
620

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Mechanical, °C 1090
600
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
24
Thermal Expansion, µm/m-K 15
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
9.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
11

Otherwise Unclassified Properties

Base Metal Price, % relative 30
8.5
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.3
2.9
Embodied Energy, MJ/kg 75
42
Embodied Water, L/kg 200
100

Common Calculations

PREN (Pitting Resistance) 21
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
130
Resilience: Unit (Modulus of Resilience), kJ/m3 95
970
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
29
Strength to Weight: Bending, points 20
25
Thermal Diffusivity, mm2/s 3.2
6.5
Thermal Shock Resistance, points 15
22

Alloy Composition

Aluminum (Al), % 0.2 to 0.5
0
Carbon (C), % 0.030 to 0.080
0.2 to 0.26
Chromium (Cr), % 19 to 22
11.3 to 12.2
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 41.1 to 50.6
83.2 to 86.8
Manganese (Mn), % 0 to 1.5
0.5 to 0.8
Molybdenum (Mo), % 0
1.0 to 1.2
Nickel (Ni), % 30 to 32.5
0 to 1.0
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0 to 0.7
0 to 0.4
Sulfur (S), % 0 to 0.010
0 to 0.020
Titanium (Ti), % 0.2 to 0.5
0
Tungsten (W), % 0
0 to 0.5
Vanadium (V), % 0
0.25 to 0.35