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EN 1.4630 Stainless Steel vs. EN 1.4125 Stainless Steel

Both EN 1.4630 stainless steel and EN 1.4125 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a very high 96% of their average alloy composition in common. There are 32 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 EN 1.4630 stainless steel and the bottom bar is EN 1.4125 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 23
19
Fatigue Strength, MPa 170
300
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 300
500
Tensile Strength: Ultimate (UTS), MPa 480
800
Tensile Strength: Yield (Proof), MPa 250
470

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 520
390
Maximum Temperature: Mechanical, °C 800
870
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1390
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 28
15
Thermal Expansion, µm/m-K 10
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.0
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.5
2.3
Embodied Energy, MJ/kg 36
32
Embodied Water, L/kg 120
120

Common Calculations

PREN (Pitting Resistance) 15
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
130
Resilience: Unit (Modulus of Resilience), kJ/m3 160
570
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
29
Strength to Weight: Bending, points 18
25
Thermal Diffusivity, mm2/s 7.5
4.1
Thermal Shock Resistance, points 17
29

Alloy Composition

Aluminum (Al), % 0 to 1.5
0
Carbon (C), % 0 to 0.030
1.0 to 1.2
Chromium (Cr), % 13 to 16
16 to 18
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 77.1 to 86.7
78 to 82.7
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0.4 to 0.8
Nickel (Ni), % 0 to 0.5
0
Niobium (Nb), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.050
0 to 0.040
Silicon (Si), % 0.2 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.015
Titanium (Ti), % 0.15 to 0.8
0