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EN 1.4807 Stainless Steel vs. ASTM A242 HSLA Steel

Both EN 1.4807 stainless steel and ASTM A242 HSLA steel are iron alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 42% 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 1.4807 stainless steel and the bottom bar is ASTM A242 HSLA steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 4.5
22
Fatigue Strength, MPa 120
230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
73
Tensile Strength: Ultimate (UTS), MPa 480
490
Tensile Strength: Yield (Proof), MPa 250
330

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Maximum Temperature: Mechanical, °C 1000
400
Melting Completion (Liquidus), °C 1390
1460
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
52
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 39
1.9
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 6.8
1.4
Embodied Energy, MJ/kg 97
18
Embodied Water, L/kg 190
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18
95
Resilience: Unit (Modulus of Resilience), kJ/m3 160
290
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
17
Strength to Weight: Bending, points 17
17
Thermal Diffusivity, mm2/s 3.2
14
Thermal Shock Resistance, points 12
14

Alloy Composition

Carbon (C), % 0.3 to 0.5
0 to 0.15
Chromium (Cr), % 17 to 20
0
Copper (Cu), % 0
0.2 to 0.45
Iron (Fe), % 36.6 to 46.7
98.2 to 99.8
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 34 to 36
0
Niobium (Nb), % 1.0 to 1.8
0
Phosphorus (P), % 0 to 0.040
0 to 0.15
Silicon (Si), % 1.0 to 2.5
0
Sulfur (S), % 0 to 0.030
0 to 0.050