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EN 1.4634 Stainless Steel vs. EN 1.6982 Stainless Steel

Both EN 1.4634 stainless steel and EN 1.6982 stainless steel are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4634 stainless steel and the bottom bar is EN 1.6982 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 21
17
Fatigue Strength, MPa 180
350
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 540
800
Tensile Strength: Yield (Proof), MPa 280
570

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 500
390
Maximum Temperature: Mechanical, °C 900
770
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 21
25
Thermal Expansion, µm/m-K 10
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 13
10
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.9
2.4
Embodied Energy, MJ/kg 42
33
Embodied Water, L/kg 140
110

Common Calculations

PREN (Pitting Resistance) 19
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 93
120
Resilience: Unit (Modulus of Resilience), kJ/m3 200
820
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
28
Strength to Weight: Bending, points 19
25
Thermal Diffusivity, mm2/s 5.8
6.6
Thermal Shock Resistance, points 19
29

Alloy Composition

Aluminum (Al), % 0.2 to 1.5
0
Carbon (C), % 0 to 0.030
0 to 0.050
Chromium (Cr), % 17.5 to 18.5
12 to 13.5
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 74.9 to 81.8
78.7 to 84.5
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0 to 0.7
Nickel (Ni), % 0 to 0.5
3.5 to 5.0
Niobium (Nb), % 0.3 to 1.0
0
Phosphorus (P), % 0 to 0.050
0 to 0.035
Silicon (Si), % 0.2 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.015