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EN 1.4525 Stainless Steel vs. ASTM Grade HP Steel

Both EN 1.4525 stainless steel and ASTM grade HP steel are iron alloys. They have 58% of their average alloy composition in common. There are 29 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 EN 1.4525 stainless steel and the bottom bar is ASTM grade HP steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 5.6 to 13
5.1
Fatigue Strength, MPa 480 to 540
130
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
78
Tensile Strength: Ultimate (UTS), MPa 1030 to 1250
490
Tensile Strength: Yield (Proof), MPa 840 to 1120
260

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Maximum Temperature: Corrosion, °C 430
440
Maximum Temperature: Mechanical, °C 860
1100
Melting Completion (Liquidus), °C 1430
1370
Melting Onset (Solidus), °C 1390
1330
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 18
12
Thermal Expansion, µm/m-K 11
16

Otherwise Unclassified Properties

Base Metal Price, % relative 13
34
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.8
5.8
Embodied Energy, MJ/kg 39
82
Embodied Water, L/kg 130
220

Common Calculations

PREN (Pitting Resistance) 18
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 68 to 130
21
Resilience: Unit (Modulus of Resilience), kJ/m3 1820 to 3230
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 36 to 45
17
Strength to Weight: Bending, points 29 to 33
17
Thermal Diffusivity, mm2/s 4.7
3.2
Thermal Shock Resistance, points 34 to 41
11

Alloy Composition

Carbon (C), % 0 to 0.070
0.35 to 0.75
Chromium (Cr), % 15 to 17
24 to 28
Copper (Cu), % 2.5 to 4.0
0
Iron (Fe), % 70.4 to 79
29.2 to 42.7
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.8
0 to 0.5
Nickel (Ni), % 3.5 to 5.5
33 to 37
Niobium (Nb), % 0 to 0.35
0
Nitrogen (N), % 0 to 0.050
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.8
0 to 2.5
Sulfur (S), % 0 to 0.025
0 to 0.040