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EN 1.4938 Stainless Steel vs. EN 1.4035 Stainless Steel

Both EN 1.4938 stainless steel and EN 1.4035 stainless steel are iron alloys. They have a very high 95% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, 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 1.4035 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 16 to 17
18
Fatigue Strength, MPa 390 to 520
250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Shear Strength, MPa 540 to 630
430
Tensile Strength: Ultimate (UTS), MPa 870 to 1030
690
Tensile Strength: Yield (Proof), MPa 640 to 870
400

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Corrosion, °C 390
380
Maximum Temperature: Mechanical, °C 750
760
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 30
29
Thermal Expansion, µm/m-K 11
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
7.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.3
2.0
Embodied Energy, MJ/kg 47
27
Embodied Water, L/kg 110
100

Common Calculations

PREN (Pitting Resistance) 18
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1050 to 1920
420
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31 to 37
25
Strength to Weight: Bending, points 26 to 29
22
Thermal Diffusivity, mm2/s 8.1
7.8
Thermal Shock Resistance, points 30 to 35
25

Alloy Composition

Carbon (C), % 0.080 to 0.15
0.43 to 0.5
Chromium (Cr), % 11 to 12.5
12.5 to 14
Iron (Fe), % 80.5 to 84.8
82.1 to 86.9
Manganese (Mn), % 0.4 to 0.9
0 to 2.0
Molybdenum (Mo), % 1.5 to 2.0
0
Nickel (Ni), % 2.0 to 3.0
0
Nitrogen (N), % 0.020 to 0.040
0
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
0.15 to 0.35
Vanadium (V), % 0.25 to 0.4
0