MakeItFrom.com
Menu (ESC)

EN 1.4029 Stainless Steel vs. EN 1.4122 Stainless Steel

Both EN 1.4029 stainless steel and EN 1.4122 stainless steel are iron alloys. They have a moderately high 95% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4029 stainless steel and the bottom bar is EN 1.4122 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 10 to 20
14
Fatigue Strength, MPa 270 to 400
260 to 360
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 440 to 550
480 to 520
Tensile Strength: Ultimate (UTS), MPa 700 to 930
790 to 850
Tensile Strength: Yield (Proof), MPa 410 to 740
450 to 630

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Corrosion, °C 390
400
Maximum Temperature: Mechanical, °C 750
870
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 30
15
Thermal Expansion, µm/m-K 10
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
9.5
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.0
2.4
Embodied Energy, MJ/kg 28
33
Embodied Water, L/kg 100
120

Common Calculations

PREN (Pitting Resistance) 14
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 89 to 120
93 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 1410
520 to 1000
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25 to 33
28 to 31
Strength to Weight: Bending, points 23 to 27
25 to 26
Thermal Diffusivity, mm2/s 8.1
4.0
Thermal Shock Resistance, points 26 to 34
28 to 30

Alloy Composition

Carbon (C), % 0.25 to 0.32
0.33 to 0.45
Chromium (Cr), % 12 to 13.5
15.5 to 17.5
Iron (Fe), % 82.8 to 87.6
77.2 to 83.4
Manganese (Mn), % 0 to 1.5
0 to 1.5
Molybdenum (Mo), % 0 to 0.6
0.8 to 1.3
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0.15 to 0.25
0 to 0.015

Comparable Variants