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AISI 310S Stainless Steel vs. EN 1.4125 Stainless Steel

Both AISI 310S stainless steel and EN 1.4125 stainless steel are iron alloys. They have 71% of their average alloy composition in common.

For each property being compared, the top bar is AISI 310S stainless steel and the bottom bar is EN 1.4125 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 210
250
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34 to 44
19
Fatigue Strength, MPa 250 to 280
300
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
77
Shear Strength, MPa 420 to 470
500
Tensile Strength: Ultimate (UTS), MPa 600 to 710
800
Tensile Strength: Yield (Proof), MPa 270 to 350
470

Thermal Properties

Latent Heat of Fusion, J/g 310
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 16
15
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 25
9.0
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.3
2.3
Embodied Energy, MJ/kg 61
32
Embodied Water, L/kg 190
120

Common Calculations

PREN (Pitting Resistance) 25
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 220
130
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 310
570
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 25
29
Strength to Weight: Bending, points 20 to 22
25
Thermal Diffusivity, mm2/s 4.1
4.1
Thermal Shock Resistance, points 14 to 16
29

Alloy Composition

Carbon (C), % 0 to 0.080
1.0 to 1.2
Chromium (Cr), % 24 to 26
16 to 18
Iron (Fe), % 48.3 to 57
78 to 82.7
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0
0.4 to 0.8
Nickel (Ni), % 19 to 22
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015