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EN 1.4031 Stainless Steel vs. EN 1.7335 Steel

Both EN 1.4031 stainless steel and EN 1.7335 steel are iron alloys. They have 87% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4031 stainless steel and the bottom bar is EN 1.7335 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 13
21 to 22
Fatigue Strength, MPa 220 to 400
200 to 220
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 400 to 540
310 to 330
Tensile Strength: Ultimate (UTS), MPa 670 to 900
500 to 520
Tensile Strength: Yield (Proof), MPa 390 to 730
280 to 310

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 770
430
Melting Completion (Liquidus), °C 1440
1470
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 30
44
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.7
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
2.8
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 1.9
1.6
Embodied Energy, MJ/kg 27
21
Embodied Water, L/kg 100
52

Common Calculations

PREN (Pitting Resistance) 14
2.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 94
91 to 97
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 1360
210 to 260
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24 to 32
18
Strength to Weight: Bending, points 22 to 27
18
Thermal Diffusivity, mm2/s 8.1
12
Thermal Shock Resistance, points 23 to 32
15

Alloy Composition

Carbon (C), % 0.36 to 0.42
0.080 to 0.18
Chromium (Cr), % 12.5 to 14.5
0.7 to 1.2
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 83 to 87.1
96.4 to 98.4
Manganese (Mn), % 0 to 1.0
0.4 to 1.0
Molybdenum (Mo), % 0
0.4 to 0.6
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.010

Comparable Variants