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AISI 416 Stainless Steel vs. EN 1.4125 Stainless Steel

Both AISI 416 stainless steel and EN 1.4125 stainless steel are iron alloys. They have a moderately high 94% of their average alloy composition in common.

For each property being compared, the top bar is AISI 416 stainless steel and the bottom bar is EN 1.4125 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230 to 320
250
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 13 to 31
19
Fatigue Strength, MPa 230 to 340
300
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 340 to 480
500
Tensile Strength: Ultimate (UTS), MPa 510 to 800
800
Tensile Strength: Yield (Proof), MPa 290 to 600
470

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Corrosion, °C 390
390
Maximum Temperature: Mechanical, °C 680
870
Melting Completion (Liquidus), °C 1530
1430
Melting Onset (Solidus), °C 1480
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 30
15
Thermal Expansion, µm/m-K 9.9
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
9.0
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 1.9
2.3
Embodied Energy, MJ/kg 27
32
Embodied Water, L/kg 100
120

Common Calculations

PREN (Pitting Resistance) 13
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 140
130
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 940
570
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18 to 29
29
Strength to Weight: Bending, points 18 to 25
25
Thermal Diffusivity, mm2/s 8.1
4.1
Thermal Shock Resistance, points 19 to 30
29

Alloy Composition

Carbon (C), % 0 to 0.15
1.0 to 1.2
Chromium (Cr), % 12 to 14
16 to 18
Iron (Fe), % 83.2 to 87.9
78 to 82.7
Manganese (Mn), % 0 to 1.3
0 to 1.0
Molybdenum (Mo), % 0
0.4 to 0.8
Phosphorus (P), % 0 to 0.060
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0.15 to 0.35
0 to 0.015