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EN 1.3975 Stainless Steel vs. ASTM Grade HI Steel

Both EN 1.3975 stainless steel and ASTM grade HI steel are iron alloys. They have 81% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.3975 stainless steel and the bottom bar is ASTM grade HI steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 27
11
Fatigue Strength, MPa 230
150
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 660
550
Tensile Strength: Yield (Proof), MPa 320
270

Thermal Properties

Latent Heat of Fusion, J/g 340
310
Maximum Temperature: Corrosion, °C 410
450
Maximum Temperature: Mechanical, °C 910
1100
Melting Completion (Liquidus), °C 1360
1400
Melting Onset (Solidus), °C 1320
1350
Specific Heat Capacity, J/kg-K 500
490
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 15
23
Density, g/cm3 7.5
7.8
Embodied Carbon, kg CO2/kg material 3.3
4.1
Embodied Energy, MJ/kg 47
59
Embodied Water, L/kg 150
200

Common Calculations

PREN (Pitting Resistance) 21
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
52
Resilience: Unit (Modulus of Resilience), kJ/m3 270
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 24
20
Strength to Weight: Bending, points 22
19
Thermal Shock Resistance, points 15
12

Alloy Composition

Carbon (C), % 0 to 0.050
0.2 to 0.5
Chromium (Cr), % 16 to 18
26 to 30
Iron (Fe), % 58.2 to 65.4
46.9 to 59.8
Manganese (Mn), % 7.0 to 9.0
0 to 2.0
Molybdenum (Mo), % 0 to 1.0
0 to 0.5
Nickel (Ni), % 8.0 to 9.0
14 to 18
Nitrogen (N), % 0.080 to 0.18
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 3.5 to 4.5
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.040