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AISI 334 Stainless Steel vs. ASTM A232 Spring Steel

Both AISI 334 stainless steel and ASTM A232 spring steel are iron alloys. They have 61% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AISI 334 stainless steel and the bottom bar is ASTM A232 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
540
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
14
Fatigue Strength, MPa 150
1040
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 360
1090
Tensile Strength: Ultimate (UTS), MPa 540
1790
Tensile Strength: Yield (Proof), MPa 190
1610

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1000
420
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 22
2.3
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.1
2.0
Embodied Energy, MJ/kg 59
28
Embodied Water, L/kg 170
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
64
Strength to Weight: Bending, points 19
42
Thermal Shock Resistance, points 12
53

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
0
Carbon (C), % 0 to 0.080
0.48 to 0.53
Chromium (Cr), % 18 to 20
0.8 to 1.1
Iron (Fe), % 55.7 to 62.7
96.8 to 97.7
Manganese (Mn), % 0 to 1.0
0.7 to 0.9
Nickel (Ni), % 19 to 21
0
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.035
Titanium (Ti), % 0.15 to 0.6
0
Vanadium (V), % 0
0.15 to 0.3