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AISI 202 Stainless Steel vs. ASTM Grade HF Steel

Both AISI 202 stainless steel and ASTM grade HF steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is AISI 202 stainless steel and the bottom bar is ASTM grade HF steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 300
160
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 14 to 45
29
Fatigue Strength, MPa 290 to 330
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 700 to 980
550
Tensile Strength: Yield (Proof), MPa 310 to 580
270

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 910
1000
Melting Completion (Liquidus), °C 1400
1410
Melting Onset (Solidus), °C 1360
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 13
17
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.8
3.2
Embodied Energy, MJ/kg 40
46
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 20
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
130
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 840
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25 to 35
20
Strength to Weight: Bending, points 23 to 29
19
Thermal Diffusivity, mm2/s 4.0
4.2
Thermal Shock Resistance, points 15 to 21
12

Alloy Composition

Carbon (C), % 0 to 0.15
0.2 to 0.4
Chromium (Cr), % 17 to 19
18 to 23
Iron (Fe), % 63.5 to 71.5
60 to 73.8
Manganese (Mn), % 7.5 to 10
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 4.0 to 6.0
8.0 to 12
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.060
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.040