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S32550 Stainless Steel vs. EN 1.6958 Steel

Both S32550 stainless steel and EN 1.6958 steel are iron alloys. They have 68% of their average alloy composition in common. There are 33 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 S32550 stainless steel and the bottom bar is EN 1.6958 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
340
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 21
16
Fatigue Strength, MPa 400
700
Poisson's Ratio 0.27
0.29
Reduction in Area, % 57
56
Shear Modulus, GPa 80
73
Shear Strength, MPa 540
700
Tensile Strength: Ultimate (UTS), MPa 860
1140
Tensile Strength: Yield (Proof), MPa 620
1070

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
450
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
47
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 20
5.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.8
2.0
Embodied Energy, MJ/kg 53
27
Embodied Water, L/kg 180
60

Common Calculations

PREN (Pitting Resistance) 40
2.9
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
180
Resilience: Unit (Modulus of Resilience), kJ/m3 940
3050
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 31
40
Strength to Weight: Bending, points 26
31
Thermal Diffusivity, mm2/s 4.4
13
Thermal Shock Resistance, points 23
39

Alloy Composition

Aluminum (Al), % 0
0.0050 to 0.050
Carbon (C), % 0 to 0.040
0.25 to 0.3
Chromium (Cr), % 24 to 27
1.2 to 1.7
Copper (Cu), % 1.5 to 2.5
0
Iron (Fe), % 57.2 to 67
92.6 to 94.5
Manganese (Mn), % 0 to 1.5
0.2 to 0.5
Molybdenum (Mo), % 2.9 to 3.9
0.35 to 0.55
Nickel (Ni), % 4.5 to 6.5
3.3 to 3.8
Nitrogen (N), % 0.1 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.0
0.15 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.015
Vanadium (V), % 0
0 to 0.12