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EN 1.4971 Stainless Steel vs. EN 1.4612 Stainless Steel

Both EN 1.4971 stainless steel and EN 1.4612 stainless steel are iron alloys. They have 55% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4971 stainless steel and the bottom bar is EN 1.4612 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 34
11
Fatigue Strength, MPa 270
860 to 950
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 81
76
Shear Strength, MPa 530
1010 to 1110
Tensile Strength: Ultimate (UTS), MPa 800
1690 to 1850
Tensile Strength: Yield (Proof), MPa 340
1570 to 1730

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 570
450
Maximum Temperature: Mechanical, °C 1100
790
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 450
480
Thermal Expansion, µm/m-K 15
11

Otherwise Unclassified Properties

Base Metal Price, % relative 70
16
Density, g/cm3 8.4
7.9
Embodied Carbon, kg CO2/kg material 7.6
3.6
Embodied Energy, MJ/kg 110
50
Embodied Water, L/kg 300
140

Common Calculations

PREN (Pitting Resistance) 38
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
190 to 210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
60 to 65
Strength to Weight: Bending, points 23
40 to 43
Thermal Shock Resistance, points 19
58 to 63

Alloy Composition

Aluminum (Al), % 0
1.4 to 1.8
Carbon (C), % 0.080 to 0.16
0 to 0.015
Chromium (Cr), % 20 to 22.5
11 to 12.5
Cobalt (Co), % 18.5 to 21
0
Iron (Fe), % 24.3 to 37.1
71.5 to 75.5
Manganese (Mn), % 0 to 2.0
0 to 0.1
Molybdenum (Mo), % 2.5 to 3.5
1.8 to 2.3
Nickel (Ni), % 19 to 21
10.2 to 11.3
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0 to 0.010
Phosphorus (P), % 0 to 0.035
0 to 0.010
Silicon (Si), % 0 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.015
0 to 0.0050
Titanium (Ti), % 0
0.2 to 0.5
Tungsten (W), % 2.0 to 3.0
0