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Aged Full-hard S46910 Stainless Steel vs. Aged Half-hard S46910 Stainless Steel

Both aged full-hard S46910 stainless steel and aged half-hard S46910 stainless steel are variants of the same material. They share alloy composition and many physical properties, but develop different mechanical properties as a result of different processing.

For each property being compared, the top bar is aged full-hard S46910 stainless steel and the bottom bar is aged half-hard S46910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 630
520
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 2.2
6.8
Fatigue Strength, MPa 1020
840
Poisson's Ratio 0.28
0.28
Rockwell C Hardness 63
54
Shear Modulus, GPa 76
76
Shear Strength, MPa 1410
1130
Tensile Strength: Ultimate (UTS), MPa 2470
1930
Tensile Strength: Yield (Proof), MPa 2290
1680

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 540
540
Maximum Temperature: Mechanical, °C 810
810
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 11
11

Otherwise Unclassified Properties

Base Metal Price, % relative 18
18
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 4.1
4.1
Embodied Energy, MJ/kg 55
55
Embodied Water, L/kg 140
140

Common Calculations

PREN (Pitting Resistance) 25
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 54
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 86
67
Strength to Weight: Bending, points 51
43
Thermal Shock Resistance, points 84
66

Alloy Composition

Aluminum (Al), % 0.15 to 0.5
0.15 to 0.5
Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 11 to 13
11 to 13
Copper (Cu), % 1.5 to 3.5
1.5 to 3.5
Iron (Fe), % 65 to 76
65 to 76
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 3.0 to 5.0
3.0 to 5.0
Nickel (Ni), % 8.0 to 10
8.0 to 10
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.7
0 to 0.7
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0.5 to 1.2
0.5 to 1.2