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EN 1.4034 Stainless Steel vs. SAE-AISI 1137 Steel

Both EN 1.4034 stainless steel and SAE-AISI 1137 steel are iron alloys. They have 86% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 SAE-AISI 1137 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 14
11 to 17
Fatigue Strength, MPa 230 to 400
250 to 400
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 420 to 540
430 to 460
Tensile Strength: Ultimate (UTS), MPa 690 to 900
700 to 760
Tensile Strength: Yield (Proof), MPa 390 to 730
370 to 650

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 770
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 30
51
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
10
Electrical Conductivity: Equal Weight (Specific), % IACS 3.7
12

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
1.9
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.4
Embodied Energy, MJ/kg 27
19
Embodied Water, L/kg 100
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 94
81 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 400 to 1370
360 to 1130
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25 to 32
25 to 27
Strength to Weight: Bending, points 22 to 27
22 to 24
Thermal Diffusivity, mm2/s 8.1
14
Thermal Shock Resistance, points 24 to 32
21 to 23

Alloy Composition

Carbon (C), % 0.43 to 0.5
0.32 to 0.39
Chromium (Cr), % 12.5 to 14.5
0
Iron (Fe), % 83 to 87.1
97.8 to 98.3
Manganese (Mn), % 0 to 1.0
1.4 to 1.7
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0.080 to 0.13