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ASTM A372 Grade B Steel vs. EN 1.4369 Stainless Steel

Both ASTM A372 grade B steel and EN 1.4369 stainless steel are iron alloys. They have 68% 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 ASTM A372 grade B steel and the bottom bar is EN 1.4369 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
260
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
40
Fatigue Strength, MPa 240
330
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 380
580
Tensile Strength: Ultimate (UTS), MPa 600
850
Tensile Strength: Yield (Proof), MPa 350
390

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
940
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
15
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
14
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
3.0
Embodied Energy, MJ/kg 18
43
Embodied Water, L/kg 46
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
280
Resilience: Unit (Modulus of Resilience), kJ/m3 330
380
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21
31
Strength to Weight: Bending, points 20
26
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 19
18

Alloy Composition

Carbon (C), % 0 to 0.35
0.070 to 0.15
Chromium (Cr), % 0
17.5 to 19.5
Iron (Fe), % 97.9 to 99.85
63 to 70.2
Manganese (Mn), % 0 to 1.4
5.0 to 7.5
Nickel (Ni), % 0
6.5 to 8.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0.15 to 0.35
0.5 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015