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Carpenter Custom 450® Stainless Steel, Condition H900 (Age Hardened 482°C)

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, Condition H900 (Age Hardened 482°C).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 7.76 g/cc
0.280 lb/in³
Mechanical Properties Metric English Comments
Hardness, Brinell 395
395
Estimated from Rockwell C for 3000 kg load, 10 mm ball Brinell measurement.
Hardness, Knoop 431
431
Estimated from Rockwell C
Hardness, Rockwell C 42.5
42.5
Hardness, Vickers 413
413
Estimated from Rockwell C
Tensile Strength, Ultimate 1351 MPa
195900 psi
579 MPa

@Temperature 566 °C
84000 psi

@Temperature 1050 °F
1034 MPa

@Temperature 427 °C
150000 psi

@Temperature 801 °F
1103 MPa

@Temperature 316 °C
160000 psi

@Temperature 601 °F
1413 MPa

@Temperature -18.0 °C
204900 psi

@Temperature -0.400 °F
1489 MPa

@Temperature -73.0 °C
216000 psi

@Temperature -99.4 °F
1793 MPa

@Temperature -196 °C
260100 psi

@Temperature -321 °F
Tensile Strength, Yield 1296 MPa

@Strain 0.200 %
188000 psi

@Strain 0.200 %
524 MPa

@Strain 0.200 %,
Temperature 566 °C
76000 psi

@Strain 0.200 %,
Temperature 1050 °F
903 MPa

@Strain 0.200 %,
Temperature 427 °C
131000 psi

@Strain 0.200 %,
Temperature 801 °F
951 MPa

@Strain 0.200 %,
Temperature 316 °C
138000 psi

@Strain 0.200 %,
Temperature 601 °F
1338 MPa

@Strain 0.200 %,
Temperature -18.0 °C
194100 psi

@Strain 0.200 %,
Temperature -0.400 °F
1427 MPa

@Strain 0.200 %,
Temperature -73.0 °C
207000 psi

@Strain 0.200 %,
Temperature -99.4 °F
1717 MPa

@Strain 0.200 %,
Temperature -196 °C
249000 psi

@Strain 0.200 %,
Temperature -321 °F
Elongation at Break 14 %
14 %
In 4D
5.0 %

@Temperature -196 °C
5.0 %

@Temperature -321 °F
In 4D
12 %

@Temperature 316 °C
12 %

@Temperature 601 °F
In 4D
12 %

@Temperature 427 °C
12 %

@Temperature 801 °F
In 4D
15 %

@Temperature -18.0 °C
15 %

@Temperature -0.400 °F
In 4D
16 %

@Temperature -73.0 °C
16 %

@Temperature -99.4 °F
In 4D
24 %

@Temperature 566 °C
24 %

@Temperature 1050 °F
In 4D
Reduction of Area 56 %
56 %
8.0 %

@Temperature -196 °C
8.0 %

@Temperature -321 °F
45 %

@Temperature 427 °C
45 %

@Temperature 801 °F
48 %

@Temperature 316 °C
48 %

@Temperature 601 °F
57 %

@Temperature -18.0 °C
57 %

@Temperature -0.400 °F
75 %

@Temperature 566 °C
75 %

@Temperature 1050 °F
Modulus of Elasticity 200 GPa
29000 ksi
Notched Tensile Strength 586 MPa

@Temperature -196 °C
85000 psi

@Temperature -321 °F
K<sub>t</sub> = 10
1770 MPa

@Temperature -73.0 °C
257000 psi

@Temperature -99.4 °F
K<sub>t</sub> = 10
2060 MPa

@Temperature 23.0 °C
298000 psi

@Temperature 73.4 °F
K<sub>t</sub> = 10
2110 MPa

@Temperature -18.0 °C
306000 psi

@Temperature -0.400 °F
K<sub>t</sub> = 10
Poissons Ratio 0.29
0.29
Fatigue Strength 660 MPa

@# of Cycles 1.00e+7
95700 psi

@# of Cycles 1.00e+7
R.R. Moore Test, Smooth Rotating Beam
Shear Modulus 77.5 GPa
11200 ksi
Calculated
Charpy Impact 54.0 J
39.8 ft-lb
V-notch
1.00 J

@Temperature -196 °C
0.738 ft-lb

@Temperature -321 °F
V-notch
5.00 J

@Temperature -73.0 °C
3.69 ft-lb

@Temperature -99.4 °F
V-notch
22.0 J

@Temperature -18.0 °C
16.2 ft-lb

@Temperature -0.400 °F
V-notch
57.0 J

@Temperature 427 °C
42.0 ft-lb

@Temperature 801 °F
V-notch
89.0 J

@Temperature 566 °C
65.6 ft-lb

@Temperature 1050 °F
V-notch
Thermal Properties Metric English Comments
CTE, linear 10.8 µm/m-°C

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

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

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

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

@Temperature 24.0 - 593 °C
6.528 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 0.0000846 ohm-cm
0.0000846 ohm-cm
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