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EN 1.4938 Stainless Steel vs. EN 1.4612 Stainless Steel

Both EN 1.4938 stainless steel and EN 1.4612 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 1.4938 stainless steel and the bottom bar is EN 1.4612 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 16 to 17
11
Fatigue Strength, MPa 390 to 520
860 to 950
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Shear Strength, MPa 540 to 630
1010 to 1110
Tensile Strength: Ultimate (UTS), MPa 870 to 1030
1690 to 1850
Tensile Strength: Yield (Proof), MPa 640 to 870
1570 to 1730

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Corrosion, °C 390
450
Maximum Temperature: Mechanical, °C 750
790
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 11
11

Otherwise Unclassified Properties

Base Metal Price, % relative 10
16
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.3
3.6
Embodied Energy, MJ/kg 47
50
Embodied Water, L/kg 110
140

Common Calculations

PREN (Pitting Resistance) 18
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
190 to 210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31 to 37
60 to 65
Strength to Weight: Bending, points 26 to 29
40 to 43
Thermal Shock Resistance, points 30 to 35
58 to 63

Alloy Composition

Aluminum (Al), % 0
1.4 to 1.8
Carbon (C), % 0.080 to 0.15
0 to 0.015
Chromium (Cr), % 11 to 12.5
11 to 12.5
Iron (Fe), % 80.5 to 84.8
71.5 to 75.5
Manganese (Mn), % 0.4 to 0.9
0 to 0.1
Molybdenum (Mo), % 1.5 to 2.0
1.8 to 2.3
Nickel (Ni), % 2.0 to 3.0
10.2 to 11.3
Nitrogen (N), % 0.020 to 0.040
0 to 0.010
Phosphorus (P), % 0 to 0.025
0 to 0.010
Silicon (Si), % 0 to 0.5
0 to 0.1
Sulfur (S), % 0 to 0.015
0 to 0.0050
Titanium (Ti), % 0
0.2 to 0.5
Vanadium (V), % 0.25 to 0.4
0

Comparable Variants