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S45000 Stainless Steel vs. ASTM Grade HT Steel

Both S45000 stainless steel and ASTM grade HT steel are iron alloys. They have 67% 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 S45000 stainless steel and the bottom bar is ASTM grade HT steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280 to 410
150
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 6.8 to 14
4.6
Fatigue Strength, MPa 330 to 650
130
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 980 to 1410
500
Tensile Strength: Yield (Proof), MPa 580 to 1310
270

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 400
400
Maximum Temperature: Mechanical, °C 840
1010
Melting Completion (Liquidus), °C 1440
1390
Melting Onset (Solidus), °C 1390
1340
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
12
Thermal Expansion, µm/m-K 11
15

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 13
31
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 2.8
5.4
Embodied Energy, MJ/kg 39
76
Embodied Water, L/kg 130
190

Common Calculations

PREN (Pitting Resistance) 17
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 94 to 160
19
Resilience: Unit (Modulus of Resilience), kJ/m3 850 to 4400
180
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 35 to 50
18
Strength to Weight: Bending, points 28 to 36
18
Thermal Diffusivity, mm2/s 4.5
3.2
Thermal Shock Resistance, points 33 to 47
12

Alloy Composition

Carbon (C), % 0 to 0.050
0.35 to 0.75
Chromium (Cr), % 14 to 16
15 to 19
Copper (Cu), % 1.3 to 1.8
0
Iron (Fe), % 72.1 to 79.3
38.2 to 51.7
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0.5 to 1.0
0 to 0.5
Nickel (Ni), % 5.0 to 7.0
33 to 37
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.040