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EN 1.4612 Stainless Steel vs. EN 1.4317 Stainless Steel

Both EN 1.4612 stainless steel and EN 1.4317 stainless steel are iron alloys. They have 90% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.4612 stainless steel and the bottom bar is EN 1.4317 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
17
Fatigue Strength, MPa 860 to 950
380
Impact Strength: V-Notched Charpy, J 11 to 22
56
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 1690 to 1850
860
Tensile Strength: Yield (Proof), MPa 1570 to 1730
630

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 450
390
Maximum Temperature: Mechanical, °C 790
770
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 11
11

Otherwise Unclassified Properties

Base Metal Price, % relative 16
10
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.6
2.4
Embodied Energy, MJ/kg 50
33
Embodied Water, L/kg 140
110

Common Calculations

PREN (Pitting Resistance) 19
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190 to 210
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 60 to 65
31
Strength to Weight: Bending, points 40 to 43
26
Thermal Shock Resistance, points 58 to 63
30

Alloy Composition

Aluminum (Al), % 1.4 to 1.8
0
Carbon (C), % 0 to 0.015
0 to 0.060
Chromium (Cr), % 11 to 12.5
12 to 13.5
Iron (Fe), % 71.5 to 75.5
78.7 to 84.5
Manganese (Mn), % 0 to 0.1
0 to 1.0
Molybdenum (Mo), % 1.8 to 2.3
0 to 0.7
Nickel (Ni), % 10.2 to 11.3
3.5 to 5.0
Nitrogen (N), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.010
0 to 0.035
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0 to 0.0050
0 to 0.025
Titanium (Ti), % 0.2 to 0.5
0