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EN 1.4150 Stainless Steel vs. EN 1.4912 Stainless Steel

Both EN 1.4150 stainless steel and EN 1.4912 stainless steel are iron alloys. They have 86% of their average alloy composition in common. There are 33 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 1.4150 stainless steel and the bottom bar is EN 1.4912 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
40
Fatigue Strength, MPa 270
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 460
420
Tensile Strength: Ultimate (UTS), MPa 730
610
Tensile Strength: Yield (Proof), MPa 430
230

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 390
520
Maximum Temperature: Mechanical, °C 840
940
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 23
16
Thermal Expansion, µm/m-K 10
16

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
20
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.8
3.8
Embodied Energy, MJ/kg 42
55
Embodied Water, L/kg 120
140

Common Calculations

PREN (Pitting Resistance) 19
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
190
Resilience: Unit (Modulus of Resilience), kJ/m3 470
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
22
Strength to Weight: Bending, points 24
20
Thermal Diffusivity, mm2/s 6.2
4.2
Thermal Shock Resistance, points 27
14

Alloy Composition

Carbon (C), % 0.45 to 0.6
0.040 to 0.1
Chromium (Cr), % 15 to 16.5
17 to 19
Iron (Fe), % 79 to 82.8
64.6 to 73.6
Manganese (Mn), % 0 to 0.8
0 to 2.0
Molybdenum (Mo), % 0.2 to 0.4
0
Nickel (Ni), % 0 to 0.4
9.0 to 12
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0.050 to 0.2
0
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 1.3 to 1.7
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015
Vanadium (V), % 0.2 to 0.4
0