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ASTM Grade HH Steel vs. AISI 205 Stainless Steel

Both ASTM grade HH steel and AISI 205 stainless steel are iron alloys. They have 79% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HH steel and the bottom bar is AISI 205 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
210 to 440
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
11 to 51
Fatigue Strength, MPa 150
410 to 640
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 580
800 to 1430
Tensile Strength: Yield (Proof), MPa 270
450 to 1100

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 440
410
Maximum Temperature: Mechanical, °C 1100
880
Melting Completion (Liquidus), °C 1400
1380
Melting Onset (Solidus), °C 1360
1340
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
18

Otherwise Unclassified Properties

Base Metal Price, % relative 20
11
Density, g/cm3 7.7
7.6
Embodied Carbon, kg CO2/kg material 3.7
2.6
Embodied Energy, MJ/kg 53
37
Embodied Water, L/kg 180
150

Common Calculations

PREN (Pitting Resistance) 27
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 53
150 to 430
Resilience: Unit (Modulus of Resilience), kJ/m3 190
510 to 3060
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 21
29 to 52
Strength to Weight: Bending, points 20
25 to 37
Thermal Shock Resistance, points 12
16 to 29

Alloy Composition

Carbon (C), % 0.2 to 0.5
0.12 to 0.25
Chromium (Cr), % 24 to 28
16.5 to 18.5
Iron (Fe), % 52.9 to 64.8
62.6 to 68.1
Manganese (Mn), % 0 to 2.0
14 to 15.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 11 to 14
1.0 to 1.7
Nitrogen (N), % 0
0.32 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.060
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030