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ASTM Grade HC Steel vs. AISI 334 Stainless Steel

Both ASTM grade HC steel and AISI 334 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HC steel and the bottom bar is AISI 334 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 6.0
34
Fatigue Strength, MPa 96
150
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 430
540
Tensile Strength: Yield (Proof), MPa 200
190

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 460
490
Maximum Temperature: Mechanical, °C 1100
1000
Melting Completion (Liquidus), °C 1410
1410
Melting Onset (Solidus), °C 1370
1370
Specific Heat Capacity, J/kg-K 490
480
Thermal Expansion, µm/m-K 11
16

Otherwise Unclassified Properties

Base Metal Price, % relative 14
22
Density, g/cm3 7.6
7.9
Embodied Carbon, kg CO2/kg material 2.8
4.1
Embodied Energy, MJ/kg 40
59
Embodied Water, L/kg 170
170

Common Calculations

PREN (Pitting Resistance) 29
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
140
Resilience: Unit (Modulus of Resilience), kJ/m3 95
96
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 16
19
Strength to Weight: Bending, points 16
19
Thermal Shock Resistance, points 14
12

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 0 to 0.5
0 to 0.080
Chromium (Cr), % 26 to 30
18 to 20
Iron (Fe), % 61.9 to 74
55.7 to 62.7
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 4.0
19 to 21
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.6