MakeItFrom.com
Menu (ESC)

AISI 321 Stainless Steel vs. EN 1.4150 Stainless Steel

Both AISI 321 stainless steel and EN 1.4150 stainless steel are iron alloys. They have 86% of their average alloy composition in common.

For each property being compared, the top bar is AISI 321 stainless steel and the bottom bar is EN 1.4150 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 210
220
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34 to 50
20
Fatigue Strength, MPa 220 to 270
270
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 420 to 460
460
Tensile Strength: Ultimate (UTS), MPa 590 to 690
730
Tensile Strength: Yield (Proof), MPa 220 to 350
430

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 480
390
Maximum Temperature: Mechanical, °C 870
840
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 16
23
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 16
8.5
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 3.2
2.8
Embodied Energy, MJ/kg 45
42
Embodied Water, L/kg 140
120

Common Calculations

PREN (Pitting Resistance) 19
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190 to 230
120
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 310
470
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 25
27
Strength to Weight: Bending, points 20 to 22
24
Thermal Diffusivity, mm2/s 4.1
6.2
Thermal Shock Resistance, points 13 to 15
27

Alloy Composition

Carbon (C), % 0 to 0.080
0.45 to 0.6
Chromium (Cr), % 17 to 19
15 to 16.5
Iron (Fe), % 65.3 to 74
79 to 82.8
Manganese (Mn), % 0 to 2.0
0 to 0.8
Molybdenum (Mo), % 0
0.2 to 0.4
Nickel (Ni), % 9.0 to 12
0 to 0.4
Nitrogen (N), % 0 to 0.1
0.050 to 0.2
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 0.75
1.3 to 1.7
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0 to 0.7
0
Vanadium (V), % 0
0.2 to 0.4