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EN 1.4401 Stainless Steel vs. ASTM Grade HF Steel

Both EN 1.4401 stainless steel and ASTM grade HF steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 32 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 1.4401 stainless steel and the bottom bar is ASTM grade HF steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
160
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 14 to 40
29
Fatigue Strength, MPa 200 to 320
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Tensile Strength: Ultimate (UTS), MPa 600 to 900
550
Tensile Strength: Yield (Proof), MPa 230 to 570
270

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 950
1000
Melting Completion (Liquidus), °C 1440
1410
Melting Onset (Solidus), °C 1400
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 19
17
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 3.8
3.2
Embodied Energy, MJ/kg 52
46
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 26
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 190
130
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 800
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 32
20
Strength to Weight: Bending, points 20 to 26
19
Thermal Diffusivity, mm2/s 4.0
4.2
Thermal Shock Resistance, points 13 to 20
12

Alloy Composition

Carbon (C), % 0 to 0.070
0.2 to 0.4
Chromium (Cr), % 16.5 to 18.5
18 to 23
Iron (Fe), % 62.8 to 71.5
60 to 73.8
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 2.0 to 2.5
0 to 0.5
Nickel (Ni), % 10 to 13
8.0 to 12
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0 to 0.015
0 to 0.040