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EN 1.4034 Stainless Steel vs. EN 1.7376 Steel

Both EN 1.4034 stainless steel and EN 1.7376 steel are iron alloys. They have a very high 95% of their average alloy composition in common. There are 30 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 1.4034 stainless steel and the bottom bar is EN 1.7376 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 14
20
Fatigue Strength, MPa 230 to 400
320
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
75
Tensile Strength: Ultimate (UTS), MPa 690 to 900
710
Tensile Strength: Yield (Proof), MPa 390 to 730
460

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Mechanical, °C 770
600
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 30
26
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
9.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.7
11

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
6.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
2.1
Embodied Energy, MJ/kg 27
29
Embodied Water, L/kg 100
88

Common Calculations

PREN (Pitting Resistance) 14
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 94
130
Resilience: Unit (Modulus of Resilience), kJ/m3 400 to 1370
560
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25 to 32
25
Strength to Weight: Bending, points 22 to 27
23
Thermal Diffusivity, mm2/s 8.1
6.9
Thermal Shock Resistance, points 24 to 32
20

Alloy Composition

Carbon (C), % 0.43 to 0.5
0.12 to 0.19
Chromium (Cr), % 12.5 to 14.5
8.0 to 10
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 83 to 87.1
86.2 to 90.6
Manganese (Mn), % 0 to 1.0
0.35 to 0.65
Molybdenum (Mo), % 0
0.9 to 1.2
Nickel (Ni), % 0
0 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0
0 to 0.050