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EN 1.4912 Stainless Steel vs. EN 1.4410 Stainless Steel

Both EN 1.4912 stainless steel and EN 1.4410 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 89% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4912 stainless steel and the bottom bar is EN 1.4410 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
260
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 40
24
Fatigue Strength, MPa 200
410
Impact Strength: V-Notched Charpy, J 90
90
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
81
Shear Strength, MPa 420
540
Tensile Strength: Ultimate (UTS), MPa 610
850
Tensile Strength: Yield (Proof), MPa 230
600

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 520
450
Maximum Temperature: Mechanical, °C 940
1100
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 16
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 20
20
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.8
4.0
Embodied Energy, MJ/kg 55
56
Embodied Water, L/kg 140
180

Common Calculations

PREN (Pitting Resistance) 18
42
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
180
Resilience: Unit (Modulus of Resilience), kJ/m3 130
880
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
30
Strength to Weight: Bending, points 20
26
Thermal Diffusivity, mm2/s 4.2
4.0
Thermal Shock Resistance, points 14
23

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.030
Chromium (Cr), % 17 to 19
24 to 26
Iron (Fe), % 64.6 to 73.6
58.1 to 66.8
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
3.0 to 4.5
Nickel (Ni), % 9.0 to 12
6.0 to 8.0
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0
0.24 to 0.35
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015