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EN 1.6982 Stainless Steel vs. EN 1.4508 Stainless Steel

Both EN 1.6982 stainless steel and EN 1.4508 stainless steel are iron alloys. They have 84% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.6982 stainless steel and the bottom bar is EN 1.4508 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17
34
Fatigue Strength, MPa 350
210
Impact Strength: V-Notched Charpy, J 56
90
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 800
570
Tensile Strength: Yield (Proof), MPa 570
260

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 390
420
Maximum Temperature: Mechanical, °C 770
1000
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
15
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 10
20
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.4
4.0
Embodied Energy, MJ/kg 33
55
Embodied Water, L/kg 110
160

Common Calculations

PREN (Pitting Resistance) 14
32
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
160
Resilience: Unit (Modulus of Resilience), kJ/m3 820
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
20
Strength to Weight: Bending, points 25
19
Thermal Diffusivity, mm2/s 6.6
4.1
Thermal Shock Resistance, points 29
17

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.030
Chromium (Cr), % 12 to 13.5
18 to 20
Iron (Fe), % 78.7 to 84.5
61.2 to 69.9
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.7
3.0 to 3.5
Nickel (Ni), % 3.5 to 5.0
9.0 to 12
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.015
0 to 0.030