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EN 1.4017 Stainless Steel vs. EN 1.4028 Stainless Steel

Both EN 1.4017 stainless steel and EN 1.4028 stainless steel are iron alloys. They have a moderately high 95% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4017 stainless steel and the bottom bar is EN 1.4028 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14
11 to 17
Fatigue Strength, MPa 220
230 to 400
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 350
410 to 550
Tensile Strength: Ultimate (UTS), MPa 580
660 to 930
Tensile Strength: Yield (Proof), MPa 390
390 to 730

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Corrosion, °C 410
390
Maximum Temperature: Mechanical, °C 870
760
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 30
30
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
7.0
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.2
1.9
Embodied Energy, MJ/kg 31
27
Embodied Water, L/kg 120
100

Common Calculations

PREN (Pitting Resistance) 17
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 71
94 to 96
Resilience: Unit (Modulus of Resilience), kJ/m3 380
380 to 1360
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
24 to 33
Strength to Weight: Bending, points 20
22 to 27
Thermal Diffusivity, mm2/s 8.1
8.1
Thermal Shock Resistance, points 20
23 to 32

Alloy Composition

Carbon (C), % 0 to 0.080
0.26 to 0.35
Chromium (Cr), % 16 to 18
12 to 14
Iron (Fe), % 78.3 to 82.8
83.1 to 87.7
Manganese (Mn), % 0 to 1.0
0 to 1.5
Nickel (Ni), % 1.2 to 1.6
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015