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EN 1.4374 Stainless Steel vs. ASTM Grade HG10 MNN Steel

Both EN 1.4374 stainless steel and ASTM grade HG10 MNN steel are iron alloys. They have a moderately high 91% 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 EN 1.4374 stainless steel and the bottom bar is ASTM grade HG10 MNN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
170
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
23
Fatigue Strength, MPa 340
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 800
590
Tensile Strength: Yield (Proof), MPa 400
250

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 410
500
Maximum Temperature: Mechanical, °C 920
990
Melting Completion (Liquidus), °C 1400
1420
Melting Onset (Solidus), °C 1360
1370
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 2.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 14
21
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.9
4.0
Embodied Energy, MJ/kg 42
58
Embodied Water, L/kg 150
160

Common Calculations

PREN (Pitting Resistance) 23
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
110
Resilience: Unit (Modulus of Resilience), kJ/m3 400
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 29
21
Strength to Weight: Bending, points 25
20
Thermal Diffusivity, mm2/s 4.0
3.9
Thermal Shock Resistance, points 17
13

Alloy Composition

Carbon (C), % 0.050 to 0.1
0.070 to 0.11
Chromium (Cr), % 17.5 to 18.5
18.5 to 20.5
Copper (Cu), % 0 to 0.4
0 to 0.5
Iron (Fe), % 63.5 to 67.9
57.9 to 66.5
Manganese (Mn), % 9.0 to 10
3.0 to 5.0
Molybdenum (Mo), % 0 to 0.5
0.25 to 0.45
Nickel (Ni), % 5.0 to 6.0
11.5 to 13.5
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0.25 to 0.32
0.2 to 0.3
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.3 to 0.6
0 to 0.7
Sulfur (S), % 0 to 0.030
0 to 0.030