MakeItFrom.com
Menu (ESC)

EN 1.4125 Stainless Steel vs. AISI 304LN Stainless Steel

Both EN 1.4125 stainless steel and AISI 304LN stainless steel are iron alloys. They have 87% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4125 stainless steel and the bottom bar is AISI 304LN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
190 to 350
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 19
7.8 to 46
Fatigue Strength, MPa 300
200 to 440
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 500
400 to 680
Tensile Strength: Ultimate (UTS), MPa 800
580 to 1160
Tensile Strength: Yield (Proof), MPa 470
230 to 870

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 390
420
Maximum Temperature: Mechanical, °C 870
960
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
16
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.3
3.1
Embodied Energy, MJ/kg 32
44
Embodied Water, L/kg 120
150

Common Calculations

PREN (Pitting Resistance) 19
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
83 to 270
Resilience: Unit (Modulus of Resilience), kJ/m3 570
140 to 1900
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 29
21 to 41
Strength to Weight: Bending, points 25
20 to 31
Thermal Diffusivity, mm2/s 4.1
4.0
Thermal Shock Resistance, points 29
13 to 26

Alloy Composition

Carbon (C), % 1.0 to 1.2
0 to 0.030
Chromium (Cr), % 16 to 18
18 to 20
Iron (Fe), % 78 to 82.7
65 to 73.9
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0.4 to 0.8
0
Nickel (Ni), % 0
8.0 to 12
Nitrogen (N), % 0
0.1 to 0.16
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030