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Carpenter Custom 450® Stainless Steel, Annealed

Category Metal , Ferrous Metal , Stainless Steel , T 400 Series Stainless Steel
Manufacturer Carpenter Technology Corporation (Cartech)
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Carpenter Custom 450® Stainless Steel, Annealed.pdf
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Material Notes:
Data provided by Carpenter Technology Corporation.Custom 450® stainless is a martensitic age-hardenable stainless steel which exhibits very good corrosion resistance (similar to that of Stainless Type 304) with moderate strength (similar to that of Stainless Type 410). the alloy has a yield strength somewhat greater than 100 ksi (689 MPa) in the annealed condition, but is easily fabricated. A single-step aging treatment develops higher strength with good ductility and toughness. This stainless can be machined, hot-worked, and cold-formed in the same manner as other martensitic age-hardenable stainless steels. A particular advantage is ease of welding and brazing. Custom 450 stainless is generally supplied in the annealed condition, requiring no heat treatment by the user for many applications. Because it has corrosion resistance like Type 304 stainless but three times the yield strength, it has been used in applications where Type 304 was not strong enough. On the other hand, it has also replaced Type 410 stainless directly on a strength basis where Type 410 had insufficient corrosion resistance. Mechanical properties will depend on the aging temperature selected.Custom 450® is a registered trademark of Carpenter Technology Corporation.
Physical Properties Metric English Comments
Density 7.75 g/cc
0.280 lb/in³
Mechanical Properties Metric English Comments
Hardness, Brinell 278
278
Estimated from Rockwell C for 3000 kg load, 10 mm ball Brinell measurement.
Hardness, Knoop 301
301
Estimated from Rockwell C
Hardness, Rockwell C 28
28
Hardness, Vickers 292
292
Estimated from Rockwell C
Tensile Strength, Ultimate 979 MPa
142000 psi
1089 MPa

@Temperature -73.0 °C
157900 psi

@Temperature -99.4 °F
1427 MPa

@Temperature -196 °C
207000 psi

@Temperature -321 °F
Tensile Strength, Yield 814 MPa

@Strain 0.200 %
118000 psi

@Strain 0.200 %
883 MPa

@Strain 0.200 %,
Temperature -73.0 °C
128000 psi

@Strain 0.200 %,
Temperature -99.4 °F
2137 MPa

@Strain 0.200 %,
Temperature -196 °C
309900 psi

@Strain 0.200 %,
Temperature -321 °F
Elongation at Break 13 %
13 %
In 4D
15 %

@Temperature -73.0 °C
15 %

@Temperature -99.4 °F
In 4D
17 %

@Temperature -196 °C
17 %

@Temperature -321 °F
In 4D
Reduction of Area 50 %
50 %
47 %

@Temperature -196 °C
47 %

@Temperature -321 °F
Modulus of Elasticity 200 GPa
29000 ksi
Notched Tensile Strength 1524 MPa

@Temperature 23.0 °C
221000 psi

@Temperature 73.4 °F
K<sub>t</sub> = 10
1731 MPa

@Temperature -73.0 °C
251100 psi

@Temperature -99.4 °F
K<sub>t</sub> = 10
2137 MPa

@Temperature -196 °C
309900 psi

@Temperature -321 °F
K<sub>t</sub> = 10
Poissons Ratio 0.29
0.29
Fatigue Strength 517 MPa

@# of Cycles 1.00e+7
75000 psi

@# of Cycles 1.00e+7
R.R. Moore Test, Smooth Rotating Beam
Shear Modulus 77.5 GPa
11200 ksi
Calculated
Charpy Impact 133 J
98.1 ft-lb
V-notch
41.0 J

@Temperature -196 °C
30.2 ft-lb

@Temperature -321 °F
V-notch
92.0 J

@Temperature -73.0 °C
67.9 ft-lb

@Temperature -99.4 °F
V-notch
Thermal Properties Metric English Comments
CTE, linear 10.44 µm/m-°C

@Temperature 24.0 - 260 °C
5.800 µin/in-°F

@Temperature 75.2 - 500 °F
10.58 µm/m-°C

@Temperature 24.0 - 93.0 °C
5.878 µin/in-°F

@Temperature 75.2 - 199 °F
11.11 µm/m-°C

@Temperature 24.0 - 593 °C
6.172 µin/in-°F

@Temperature 75.2 - 1100 °F
Specific Heat Capacity 0.477 J/g-°C
0.114 BTU/lb-°F
Thermal Conductivity 15.0 W/m-K

@Temperature 23.0 °C
104 BTU-in/hr-ft²-°F

@Temperature 73.4 °F
condition H 900
18.2 W/m-K

@Temperature 200 °C
126 BTU-in/hr-ft²-°F

@Temperature 392 °F
condition H 900
24.4 W/m-K

@Temperature 500 °C
169 BTU-in/hr-ft²-°F

@Temperature 932 °F
condition H 900
Component Elements Properties Metric English Comments
Carbon, C <= 0.050 %
<= 0.050 %
min. Nb content = 8 x C content
Chromium, Cr 14 - 16 %
14 - 16 %
Copper, Cu 1.25 - 1.75 %
1.25 - 1.75 %
Iron, Fe 75 %
75 %
as remainder
Manganese, Mn <= 1.0 %
<= 1.0 %
Molybdenum, Mo 0.50 - 1.0 %
0.50 - 1.0 %
Nickel, Ni 5.0 - 7.0 %
5.0 - 7.0 %
Phosphorous, P <= 0.030 %
<= 0.030 %
Silicon, Si <= 1.0 %
<= 1.0 %
Sulfur, S <= 0.030 %
<= 0.030 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.0000992 ohm-cm
0.0000992 ohm-cm
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