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EN 1.4742 Stainless Steel vs. ASTM Grade HD Steel

Both EN 1.4742 stainless steel and ASTM grade HD steel are iron alloys. They have 84% 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 1.4742 stainless steel and the bottom bar is ASTM grade HD steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
9.1
Fatigue Strength, MPa 180
140
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 600
590
Tensile Strength: Yield (Proof), MPa 300
270

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Corrosion, °C 410
460
Maximum Temperature: Mechanical, °C 1000
1100
Melting Completion (Liquidus), °C 1420
1410
Melting Onset (Solidus), °C 1380
1370
Specific Heat Capacity, J/kg-K 490
490
Thermal Conductivity, W/m-K 19
16
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
2.5

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
3.1
Embodied Energy, MJ/kg 32
45
Embodied Water, L/kg 130
180

Common Calculations

PREN (Pitting Resistance) 18
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 84
44
Resilience: Unit (Modulus of Resilience), kJ/m3 230
180
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 22
21
Strength to Weight: Bending, points 21
20
Thermal Diffusivity, mm2/s 5.1
4.3
Thermal Shock Resistance, points 21
19

Alloy Composition

Aluminum (Al), % 0.7 to 1.2
0
Carbon (C), % 0 to 0.12
0 to 0.5
Chromium (Cr), % 17 to 19
26 to 30
Iron (Fe), % 77.2 to 81.6
58.4 to 70
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
4.0 to 7.0
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