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ASTM Grade HP Steel vs. EN 1.4000 Stainless Steel

Both ASTM grade HP steel and EN 1.4000 stainless steel are iron alloys. They have 50% 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 1.4000 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 5.1
22
Fatigue Strength, MPa 130
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
76
Tensile Strength: Ultimate (UTS), MPa 490
500
Tensile Strength: Yield (Proof), MPa 260
260

Thermal Properties

Latent Heat of Fusion, J/g 320
280
Maximum Temperature: Corrosion, °C 440
390
Maximum Temperature: Mechanical, °C 1100
760
Melting Completion (Liquidus), °C 1370
1440
Melting Onset (Solidus), °C 1330
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 12
30
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 34
7.0
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 5.8
1.9
Embodied Energy, MJ/kg 82
27
Embodied Water, L/kg 220
100

Common Calculations

PREN (Pitting Resistance) 27
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
91
Resilience: Unit (Modulus of Resilience), kJ/m3 170
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
18
Strength to Weight: Bending, points 17
18
Thermal Diffusivity, mm2/s 3.2
8.1
Thermal Shock Resistance, points 11
18

Alloy Composition

Carbon (C), % 0.35 to 0.75
0 to 0.080
Chromium (Cr), % 24 to 28
12 to 14
Iron (Fe), % 29.2 to 42.7
83.9 to 88
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 33 to 37
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015