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S33228 Stainless Steel vs. ASTM A229 Spring Steel

Both S33228 stainless steel and ASTM A229 spring steel are iron alloys. They have 40% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is S33228 stainless steel and the bottom bar is ASTM A229 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
490 to 550
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
14
Fatigue Strength, MPa 170
710 to 790
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
72
Shear Strength, MPa 380
1020 to 1140
Tensile Strength: Ultimate (UTS), MPa 570
1690 to 1890
Tensile Strength: Yield (Proof), MPa 210
1100 to 1230

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1360
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 37
1.8
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 6.2
1.4
Embodied Energy, MJ/kg 89
19
Embodied Water, L/kg 220
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
200 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 110
3260 to 4080
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
60 to 67
Strength to Weight: Bending, points 19
40 to 43
Thermal Shock Resistance, points 13
54 to 60

Alloy Composition

Aluminum (Al), % 0 to 0.025
0
Carbon (C), % 0.040 to 0.080
0.55 to 0.85
Cerium (Ce), % 0.050 to 0.1
0
Chromium (Cr), % 26 to 28
0
Iron (Fe), % 36.5 to 42.3
97.5 to 99
Manganese (Mn), % 0 to 1.0
0.3 to 1.2
Nickel (Ni), % 31 to 33
0
Niobium (Nb), % 0.6 to 1.0
0
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.3
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.050