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EN 1.4105 Stainless Steel vs. EN 1.4981 Stainless Steel

Both EN 1.4105 stainless steel and EN 1.4981 stainless steel are iron alloys. They have 81% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4105 stainless steel and the bottom bar is EN 1.4981 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
39
Fatigue Strength, MPa 190
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 340
420
Tensile Strength: Ultimate (UTS), MPa 530
610
Tensile Strength: Yield (Proof), MPa 290
240

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 410
520
Maximum Temperature: Mechanical, °C 870
940
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
16
Thermal Expansion, µm/m-K 10
16

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
25
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.2
4.8
Embodied Energy, MJ/kg 31
67
Embodied Water, L/kg 120
150

Common Calculations

PREN (Pitting Resistance) 18
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
190
Resilience: Unit (Modulus of Resilience), kJ/m3 210
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
21
Strength to Weight: Bending, points 19
20
Thermal Diffusivity, mm2/s 6.7
4.3
Thermal Shock Resistance, points 19
14

Alloy Composition

Carbon (C), % 0 to 0.080
0.040 to 0.1
Chromium (Cr), % 16 to 18
15.5 to 17.5
Iron (Fe), % 77.9 to 83.7
59.6 to 66.7
Manganese (Mn), % 0 to 1.5
0 to 1.5
Molybdenum (Mo), % 0.2 to 0.6
1.6 to 2.0
Nickel (Ni), % 0
15.5 to 17.5
Niobium (Nb), % 0
0.4 to 1.2
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.5
0.3 to 0.6
Sulfur (S), % 0.15 to 0.35
0 to 0.015