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ASTM Grade HT Steel vs. EN 1.4335 Stainless Steel

Both ASTM grade HT steel and EN 1.4335 stainless steel are iron alloys. They have 84% 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 ASTM grade HT steel and the bottom bar is EN 1.4335 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 4.6
45
Fatigue Strength, MPa 130
210
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 500
570
Tensile Strength: Yield (Proof), MPa 270
230

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 400
450
Maximum Temperature: Mechanical, °C 1010
1100
Melting Completion (Liquidus), °C 1390
1410
Melting Onset (Solidus), °C 1340
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 12
14
Thermal Expansion, µm/m-K 15
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 31
25
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 5.4
4.4
Embodied Energy, MJ/kg 76
62
Embodied Water, L/kg 190
190

Common Calculations

PREN (Pitting Resistance) 18
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
210
Resilience: Unit (Modulus of Resilience), kJ/m3 180
130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18
20
Strength to Weight: Bending, points 18
19
Thermal Diffusivity, mm2/s 3.2
3.7
Thermal Shock Resistance, points 12
12

Alloy Composition

Carbon (C), % 0.35 to 0.75
0 to 0.020
Chromium (Cr), % 15 to 19
24 to 26
Iron (Fe), % 38.2 to 51.7
49.4 to 56
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
0 to 0.2
Nickel (Ni), % 33 to 37
20 to 22
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 2.5
0 to 0.25
Sulfur (S), % 0 to 0.040
0 to 0.010