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S44627 Stainless Steel vs. ASTM Grade HH Steel

Both S44627 stainless steel and ASTM grade HH steel are iron alloys. They have 86% of their average alloy composition in common. There are 32 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 S44627 stainless steel and the bottom bar is ASTM grade HH steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
170
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 24
11
Fatigue Strength, MPa 200
150
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 80
79
Tensile Strength: Ultimate (UTS), MPa 490
580
Tensile Strength: Yield (Proof), MPa 300
270

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Corrosion, °C 470
440
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1440
1400
Melting Onset (Solidus), °C 1400
1360
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
14
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 14
20
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.9
3.7
Embodied Energy, MJ/kg 41
53
Embodied Water, L/kg 160
180

Common Calculations

PREN (Pitting Resistance) 30
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
53
Resilience: Unit (Modulus of Resilience), kJ/m3 220
190
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
21
Strength to Weight: Bending, points 18
20
Thermal Diffusivity, mm2/s 4.6
3.8
Thermal Shock Resistance, points 16
12

Alloy Composition

Carbon (C), % 0 to 0.010
0.2 to 0.5
Chromium (Cr), % 25 to 27.5
24 to 28
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 69.2 to 74.2
52.9 to 64.8
Manganese (Mn), % 0 to 0.4
0 to 2.0
Molybdenum (Mo), % 0.75 to 1.5
0 to 0.5
Nickel (Ni), % 0 to 0.5
11 to 14
Niobium (Nb), % 0.050 to 0.2
0
Nitrogen (N), % 0 to 0.015
0
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 2.0
Sulfur (S), % 0 to 0.020
0 to 0.040