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ASTM Grade HF Steel vs. EN 1.4308 Stainless Steel

Both ASTM grade HF steel and EN 1.4308 stainless steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HF steel and the bottom bar is EN 1.4308 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
150
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 29
34
Fatigue Strength, MPa 200
160
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 550
510
Tensile Strength: Yield (Proof), MPa 270
200

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 420
420
Maximum Temperature: Mechanical, °C 1000
960
Melting Completion (Liquidus), °C 1410
1420
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 17
15
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.2
3.0
Embodied Energy, MJ/kg 46
43
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 21
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
140
Resilience: Unit (Modulus of Resilience), kJ/m3 180
100
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
18
Strength to Weight: Bending, points 19
18
Thermal Diffusivity, mm2/s 4.2
4.1
Thermal Shock Resistance, points 12
11

Alloy Composition

Carbon (C), % 0.2 to 0.4
0 to 0.070
Chromium (Cr), % 18 to 23
18 to 20
Iron (Fe), % 60 to 73.8
65.9 to 74
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 8.0 to 12
8.0 to 11
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 1.5
Sulfur (S), % 0 to 0.040
0 to 0.030