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ASTM Grade HK Steel vs. EN 1.4307 Stainless Steel

Both ASTM grade HK steel and EN 1.4307 stainless steel are iron alloys. They have 81% 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 HK steel and the bottom bar is EN 1.4307 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
180 to 270
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
14 to 46
Fatigue Strength, MPa 150
190 to 320
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 500
590 to 900
Tensile Strength: Yield (Proof), MPa 270
200 to 570

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 440
420
Maximum Temperature: Mechanical, °C 1100
940
Melting Completion (Liquidus), °C 1400
1430
Melting Onset (Solidus), °C 1350
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 25
15
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.4
3.0
Embodied Energy, MJ/kg 63
43
Embodied Water, L/kg 200
140

Common Calculations

PREN (Pitting Resistance) 27
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
110 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 190
100 to 810
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
21 to 32
Strength to Weight: Bending, points 18
20 to 27
Thermal Diffusivity, mm2/s 3.9
4.0
Thermal Shock Resistance, points 11
13 to 20

Alloy Composition

Carbon (C), % 0.2 to 0.6
0 to 0.030
Chromium (Cr), % 24 to 28
17.5 to 19.5
Iron (Fe), % 44.8 to 57.8
66.8 to 74.5
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 18 to 22
8.0 to 10.5
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015