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EN 1.4938 Stainless Steel vs. EN 1.4062 Stainless Steel

Both EN 1.4938 stainless steel and EN 1.4062 stainless steel are iron alloys. They have 88% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4938 stainless steel and the bottom bar is EN 1.4062 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 16 to 17
23 to 34
Fatigue Strength, MPa 390 to 520
410 to 420
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
79
Shear Strength, MPa 540 to 630
510
Tensile Strength: Ultimate (UTS), MPa 870 to 1030
770 to 800
Tensile Strength: Yield (Proof), MPa 640 to 870
530 to 600

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Corrosion, °C 390
440
Maximum Temperature: Mechanical, °C 750
1030
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 30
15
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 10
12
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.3
2.6
Embodied Energy, MJ/kg 47
37
Embodied Water, L/kg 110
150

Common Calculations

PREN (Pitting Resistance) 18
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
170 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 1050 to 1920
690 to 910
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31 to 37
28 to 29
Strength to Weight: Bending, points 26 to 29
24 to 25
Thermal Diffusivity, mm2/s 8.1
4.0
Thermal Shock Resistance, points 30 to 35
21 to 22

Alloy Composition

Carbon (C), % 0.080 to 0.15
0 to 0.030
Chromium (Cr), % 11 to 12.5
21.5 to 24
Iron (Fe), % 80.5 to 84.8
69.3 to 77.3
Manganese (Mn), % 0.4 to 0.9
0 to 2.0
Molybdenum (Mo), % 1.5 to 2.0
0 to 0.45
Nickel (Ni), % 2.0 to 3.0
1.0 to 2.9
Nitrogen (N), % 0.020 to 0.040
0.16 to 0.28
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.010
Vanadium (V), % 0.25 to 0.4
0