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S32750 Stainless Steel vs. EN 1.4125 Stainless Steel

Both S32750 stainless steel and EN 1.4125 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 81% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is S32750 stainless steel and the bottom bar is EN 1.4125 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
250
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 17
19
Fatigue Strength, MPa 360
300
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
77
Shear Strength, MPa 530
500
Tensile Strength: Ultimate (UTS), MPa 860
800
Tensile Strength: Yield (Proof), MPa 590
470

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 450
390
Maximum Temperature: Mechanical, °C 1100
870
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 12
10

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 21
9.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 4.1
2.3
Embodied Energy, MJ/kg 56
32
Embodied Water, L/kg 180
120

Common Calculations

PREN (Pitting Resistance) 43
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
130
Resilience: Unit (Modulus of Resilience), kJ/m3 860
570
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31
29
Strength to Weight: Bending, points 26
25
Thermal Diffusivity, mm2/s 4.0
4.1
Thermal Shock Resistance, points 25
29

Alloy Composition

Carbon (C), % 0 to 0.030
1.0 to 1.2
Chromium (Cr), % 24 to 26
16 to 18
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 58.1 to 66.8
78 to 82.7
Manganese (Mn), % 0 to 1.2
0 to 1.0
Molybdenum (Mo), % 3.0 to 5.0
0.4 to 0.8
Nickel (Ni), % 6.0 to 8.0
0
Nitrogen (N), % 0.24 to 0.32
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.015