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EN 1.4062 Stainless Steel vs. EN 1.4621 Stainless Steel

Both EN 1.4062 stainless steel and EN 1.4621 stainless steel are iron alloys. They have a very high 95% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4062 stainless steel and the bottom bar is EN 1.4621 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23 to 34
25
Fatigue Strength, MPa 410 to 420
190
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 79
78
Shear Strength, MPa 510
320
Tensile Strength: Ultimate (UTS), MPa 770 to 800
500
Tensile Strength: Yield (Proof), MPa 530 to 600
270

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 440
510
Maximum Temperature: Mechanical, °C 1030
970
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
21
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 12
14
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 37
41
Embodied Water, L/kg 150
140

Common Calculations

PREN (Pitting Resistance) 27
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170 to 230
110
Resilience: Unit (Modulus of Resilience), kJ/m3 690 to 910
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 29
18
Strength to Weight: Bending, points 24 to 25
18
Thermal Diffusivity, mm2/s 4.0
5.7
Thermal Shock Resistance, points 21 to 22
17

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 21.5 to 24
20 to 21.5
Copper (Cu), % 0
0.1 to 1.0
Iron (Fe), % 69.3 to 77.3
74.4 to 79.7
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.45
0
Nickel (Ni), % 1.0 to 2.9
0
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0.16 to 0.28
0 to 0.030
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015

Comparable Variants