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EN 1.4828 Stainless Steel vs. EN 1.4981 Stainless Steel

Both EN 1.4828 stainless steel and EN 1.4981 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have a moderately high 93% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4828 stainless steel and the bottom bar is EN 1.4981 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 33
39
Fatigue Strength, MPa 200
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 430
420
Tensile Strength: Ultimate (UTS), MPa 650
610
Tensile Strength: Yield (Proof), MPa 260
240

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Corrosion, °C 420
520
Maximum Temperature: Mechanical, °C 1000
940
Melting Completion (Liquidus), °C 1400
1440
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 17
25
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.4
4.8
Embodied Energy, MJ/kg 48
67
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 21
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
190
Resilience: Unit (Modulus of Resilience), kJ/m3 170
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 23
21
Strength to Weight: Bending, points 22
20
Thermal Diffusivity, mm2/s 4.0
4.3
Thermal Shock Resistance, points 14
14

Alloy Composition

Carbon (C), % 0 to 0.2
0.040 to 0.1
Chromium (Cr), % 19 to 21
15.5 to 17.5
Iron (Fe), % 61.1 to 68.5
59.6 to 66.7
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 0
1.6 to 2.0
Nickel (Ni), % 11 to 13
15.5 to 17.5
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 1.5 to 2.5
0.3 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.015