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EN 1.4438 Stainless Steel vs. EN 1.4982 Stainless Steel

Both EN 1.4438 stainless steel and EN 1.4982 stainless steel are iron alloys. They have 89% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4438 stainless steel and the bottom bar is EN 1.4982 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
230
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 41
28
Fatigue Strength, MPa 220
420
Impact Strength: V-Notched Charpy, J 90
57
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
76
Shear Strength, MPa 420
490
Tensile Strength: Ultimate (UTS), MPa 620
750
Tensile Strength: Yield (Proof), MPa 250
570

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 420
540
Maximum Temperature: Mechanical, °C 1000
860
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 14
13
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 22
22
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.4
4.9
Embodied Energy, MJ/kg 60
71
Embodied Water, L/kg 160
150

Common Calculations

PREN (Pitting Resistance) 31
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
190
Resilience: Unit (Modulus of Resilience), kJ/m3 150
830
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
27
Strength to Weight: Bending, points 20
23
Thermal Diffusivity, mm2/s 3.7
3.4
Thermal Shock Resistance, points 14
17

Alloy Composition

Boron (B), % 0
0.0030 to 0.0090
Carbon (C), % 0 to 0.030
0.070 to 0.13
Chromium (Cr), % 17.5 to 19.5
14 to 16
Iron (Fe), % 57.3 to 66.5
61.8 to 69.7
Manganese (Mn), % 0 to 2.0
5.5 to 7.0
Molybdenum (Mo), % 3.0 to 4.0
0.8 to 1.2
Nickel (Ni), % 13 to 16
9.0 to 11
Niobium (Nb), % 0
0.75 to 1.3
Nitrogen (N), % 0 to 0.1
0 to 0.1
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0
0.15 to 0.4