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ASTM Grade HP Steel vs. EN 1.4306 Stainless Steel

Both ASTM grade HP steel and EN 1.4306 stainless steel are iron alloys. They have 67% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HP steel and the bottom bar is EN 1.4306 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
190 to 270
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 5.1
14 to 45
Fatigue Strength, MPa 130
190 to 330
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Tensile Strength: Ultimate (UTS), MPa 490
580 to 900
Tensile Strength: Yield (Proof), MPa 260
210 to 570

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Corrosion, °C 440
420
Maximum Temperature: Mechanical, °C 1100
960
Melting Completion (Liquidus), °C 1370
1420
Melting Onset (Solidus), °C 1330
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 34
16
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 5.8
3.2
Embodied Energy, MJ/kg 82
45
Embodied Water, L/kg 220
150

Common Calculations

PREN (Pitting Resistance) 27
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
110 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 170
110 to 820
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
21 to 32
Strength to Weight: Bending, points 17
20 to 27
Thermal Diffusivity, mm2/s 3.2
4.0
Thermal Shock Resistance, points 11
13 to 20

Alloy Composition

Carbon (C), % 0.35 to 0.75
0 to 0.030
Chromium (Cr), % 24 to 28
18 to 20
Iron (Fe), % 29.2 to 42.7
64.8 to 72
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 33 to 37
10 to 12
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 2.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015