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EN 1.4742 Stainless Steel vs. ASTM Grade HF Steel

Both EN 1.4742 stainless steel and ASTM grade HF steel are iron alloys. They have 86% 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 EN 1.4742 stainless steel and the bottom bar is ASTM grade HF steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
160
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
29
Fatigue Strength, MPa 180
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 600
550
Tensile Strength: Yield (Proof), MPa 300
270

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 1000
1000
Melting Completion (Liquidus), °C 1420
1410
Melting Onset (Solidus), °C 1380
1370
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 19
16
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
17
Density, g/cm3 7.6
7.7
Embodied Carbon, kg CO2/kg material 2.2
3.2
Embodied Energy, MJ/kg 32
46
Embodied Water, L/kg 130
150

Common Calculations

PREN (Pitting Resistance) 18
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 84
130
Resilience: Unit (Modulus of Resilience), kJ/m3 230
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
20
Strength to Weight: Bending, points 21
19
Thermal Diffusivity, mm2/s 5.1
4.2
Thermal Shock Resistance, points 21
12

Alloy Composition

Aluminum (Al), % 0.7 to 1.2
0
Carbon (C), % 0 to 0.12
0.2 to 0.4
Chromium (Cr), % 17 to 19
18 to 23
Iron (Fe), % 77.2 to 81.6
60 to 73.8
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
8.0 to 12
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0.7 to 1.4
0 to 2.0
Sulfur (S), % 0 to 0.015
0 to 0.040