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ACI-ASTM CA6NM Steel vs. AISI 334 Stainless Steel

Both ACI-ASTM CA6NM steel and AISI 334 stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 28 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 ACI-ASTM CA6NM steel and the bottom bar is AISI 334 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
34
Fatigue Strength, MPa 380
150
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 850
540
Tensile Strength: Yield (Proof), MPa 620
190

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 390
490
Maximum Temperature: Mechanical, °C 770
1000
Melting Completion (Liquidus), °C 1450
1410
Melting Onset (Solidus), °C 1400
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 10
16

Otherwise Unclassified Properties

Base Metal Price, % relative 10
22
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.5
4.1
Embodied Energy, MJ/kg 34
59
Embodied Water, L/kg 110
170

Common Calculations

PREN (Pitting Resistance) 15
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
140
Resilience: Unit (Modulus of Resilience), kJ/m3 1000
96
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 30
19
Strength to Weight: Bending, points 26
19
Thermal Shock Resistance, points 31
12

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 0 to 0.060
0 to 0.080
Chromium (Cr), % 11.5 to 14
18 to 20
Iron (Fe), % 78.4 to 84.6
55.7 to 62.7
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0.4 to 1.0
0
Nickel (Ni), % 3.5 to 4.5
19 to 21
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.6