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EN 1.4306 Stainless Steel vs. ASTM A242 HSLA Steel

Both EN 1.4306 stainless steel and ASTM A242 HSLA steel are iron alloys. They have 69% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4306 stainless steel and the bottom bar is ASTM A242 HSLA steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
150
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 45
22
Fatigue Strength, MPa 190 to 330
230
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 400 to 550
310
Tensile Strength: Ultimate (UTS), MPa 580 to 900
490
Tensile Strength: Yield (Proof), MPa 210 to 570
330

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 960
400
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
52
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 16
1.9
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.2
1.4
Embodied Energy, MJ/kg 45
18
Embodied Water, L/kg 150
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 200
95
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 820
290
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 32
17
Strength to Weight: Bending, points 20 to 27
17
Thermal Diffusivity, mm2/s 4.0
14
Thermal Shock Resistance, points 13 to 20
14

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.15
Chromium (Cr), % 18 to 20
0
Copper (Cu), % 0
0.2 to 0.45
Iron (Fe), % 64.8 to 72
98.2 to 99.8
Manganese (Mn), % 0 to 2.0
0 to 1.0
Nickel (Ni), % 10 to 12
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.15
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0 to 0.050