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EN 1.4901 Stainless Steel vs. ASTM Grade HN Steel

Both EN 1.4901 stainless steel and ASTM grade HN steel are iron alloys. They have 62% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.4901 stainless steel and the bottom bar is ASTM grade HN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 19
9.0
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 740
500

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Maximum Temperature: Corrosion, °C 380
420
Maximum Temperature: Mechanical, °C 650
1080
Melting Completion (Liquidus), °C 1490
1400
Melting Onset (Solidus), °C 1450
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 26
13
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 11
26
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 2.8
4.6
Embodied Energy, MJ/kg 40
66
Embodied Water, L/kg 89
180

Common Calculations

PREN (Pitting Resistance) 14
22
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
17
Strength to Weight: Bending, points 23
18
Thermal Diffusivity, mm2/s 6.9
3.5
Thermal Shock Resistance, points 23
11

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Boron (B), % 0.0010 to 0.0060
0
Carbon (C), % 0.070 to 0.13
0.2 to 0.5
Chromium (Cr), % 8.5 to 9.5
19 to 23
Iron (Fe), % 85.8 to 89.1
44.9 to 57.8
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0.3 to 0.6
0 to 0.5
Nickel (Ni), % 0 to 0.4
23 to 27
Niobium (Nb), % 0.040 to 0.090
0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 2.0
Sulfur (S), % 0 to 0.010
0 to 0.040
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 1.5 to 2.0
0
Vanadium (V), % 0.15 to 0.25
0
Zirconium (Zr), % 0 to 0.010
0