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EN 1.4618 Stainless Steel vs. EN 1.4982 Stainless Steel

Both EN 1.4618 stainless steel and EN 1.4982 stainless steel are iron alloys. They have a moderately high 93% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4618 stainless steel and the bottom bar is EN 1.4982 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
230
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 51
28
Fatigue Strength, MPa 240 to 250
420
Impact Strength: V-Notched Charpy, J 90 to 91
57
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 480 to 500
490
Tensile Strength: Ultimate (UTS), MPa 680 to 700
750
Tensile Strength: Yield (Proof), MPa 250 to 260
570

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 410
540
Maximum Temperature: Mechanical, °C 900
860
Melting Completion (Liquidus), °C 1400
1430
Melting Onset (Solidus), °C 1360
1390
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
13
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 13
22
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.7
4.9
Embodied Energy, MJ/kg 39
71
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 19
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270 to 280
190
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 170
830
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24 to 25
27
Strength to Weight: Bending, points 22 to 23
23
Thermal Diffusivity, mm2/s 4.0
3.4
Thermal Shock Resistance, points 15 to 16
17

Alloy Composition

Boron (B), % 0
0.0030 to 0.0090
Carbon (C), % 0 to 0.1
0.070 to 0.13
Chromium (Cr), % 16.5 to 18.5
14 to 16
Copper (Cu), % 1.0 to 2.5
0
Iron (Fe), % 62.7 to 72.5
61.8 to 69.7
Manganese (Mn), % 5.5 to 9.5
5.5 to 7.0
Molybdenum (Mo), % 0
0.8 to 1.2
Nickel (Ni), % 4.5 to 5.5
9.0 to 11
Niobium (Nb), % 0
0.75 to 1.3
Nitrogen (N), % 0 to 0.15
0 to 0.1
Phosphorus (P), % 0 to 0.070
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Vanadium (V), % 0
0.15 to 0.4