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S35125 Stainless Steel vs. EN 1.4634 Stainless Steel

Both S35125 stainless steel and EN 1.4634 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 61% of their average alloy composition in common.

For each property being compared, the top bar is S35125 stainless steel and the bottom bar is EN 1.4634 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
21
Fatigue Strength, MPa 200
180
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Shear Strength, MPa 370
340
Tensile Strength: Ultimate (UTS), MPa 540
540
Tensile Strength: Yield (Proof), MPa 230
280

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 490
500
Maximum Temperature: Mechanical, °C 1100
900
Melting Completion (Liquidus), °C 1430
1430
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
21
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 36
13
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 6.4
2.9
Embodied Energy, MJ/kg 89
42
Embodied Water, L/kg 210
140

Common Calculations

PREN (Pitting Resistance) 30
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
93
Resilience: Unit (Modulus of Resilience), kJ/m3 140
200
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
20
Strength to Weight: Bending, points 18
19
Thermal Diffusivity, mm2/s 3.1
5.8
Thermal Shock Resistance, points 12
19

Alloy Composition

Aluminum (Al), % 0
0.2 to 1.5
Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 20 to 23
17.5 to 18.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 36.2 to 45.8
74.9 to 81.8
Manganese (Mn), % 1.0 to 1.5
0 to 1.0
Molybdenum (Mo), % 2.0 to 3.0
0 to 0.5
Nickel (Ni), % 31 to 35
0 to 0.5
Niobium (Nb), % 0.25 to 0.6
0.3 to 1.0
Phosphorus (P), % 0 to 0.045
0 to 0.050
Silicon (Si), % 0 to 0.5
0.2 to 1.5
Sulfur (S), % 0 to 0.015
0 to 0.050