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EN 1.4859 Stainless Steel vs. ASTM Grade HG10 MNN Steel

Both EN 1.4859 stainless steel and ASTM grade HG10 MNN steel are iron alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 79% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4859 stainless steel and the bottom bar is ASTM grade HG10 MNN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
170
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
23
Fatigue Strength, MPa 140
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 490
590
Tensile Strength: Yield (Proof), MPa 210
250

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 560
500
Maximum Temperature: Mechanical, °C 1050
990
Melting Completion (Liquidus), °C 1410
1420
Melting Onset (Solidus), °C 1360
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 13
15
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 36
21
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 6.2
4.0
Embodied Energy, MJ/kg 88
58
Embodied Water, L/kg 190
160

Common Calculations

PREN (Pitting Resistance) 21
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 91
110
Resilience: Unit (Modulus of Resilience), kJ/m3 110
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
21
Strength to Weight: Bending, points 17
20
Thermal Diffusivity, mm2/s 3.4
3.9
Thermal Shock Resistance, points 11
13

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.070 to 0.11
Chromium (Cr), % 19 to 21
18.5 to 20.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 40.3 to 49
57.9 to 66.5
Manganese (Mn), % 0 to 2.0
3.0 to 5.0
Molybdenum (Mo), % 0 to 0.5
0.25 to 0.45
Nickel (Ni), % 31 to 33
11.5 to 13.5
Niobium (Nb), % 0.5 to 1.5
0.2 to 1.0
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0.5 to 1.5
0 to 0.7
Sulfur (S), % 0 to 0.030
0 to 0.030