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Carpenter Custom 450® Stainless Steel, Condition H950 (Age Hardened 510°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 H950 (Age Hardened 510°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
H900 Condition
Mechanical Properties Metric English Comments
Hardness, Brinell 384
384
Estimated from Rockwell C for 3000 kg load, 10 mm ball Brinell measurement.
Hardness, Knoop 420
420
Estimated from Rockwell C
Hardness, Rockwell C 41.5
41.5
Hardness, Vickers 402
402
Estimated from Rockwell C
Tensile Strength, Ultimate 1289 MPa
187000 psi
586 MPa

@Temperature 566 °C
85000 psi

@Temperature 1050 °F
986 MPa

@Temperature 427 °C
143000 psi

@Temperature 801 °F
1048 MPa

@Temperature 316 °C
152000 psi

@Temperature 601 °F
Tensile Strength, Yield 1264 MPa

@Strain 0.200 %
183300 psi

@Strain 0.200 %
538 MPa

@Strain 0.200 %,
Temperature 566 °C
78000 psi

@Strain 0.200 %,
Temperature 1050 °F
896 MPa

@Strain 0.200 %,
Temperature 427 °C
130000 psi

@Strain 0.200 %,
Temperature 801 °F
965 MPa

@Strain 0.200 %,
Temperature 316 °C
140000 psi

@Strain 0.200 %,
Temperature 601 °F
Elongation at Break 16 %
16 %
In 4D
12 %

@Temperature 427 °C
12 %

@Temperature 801 °F
In 4D
12 %

@Temperature 316 °C
12 %

@Temperature 601 °F
In 4D
27 %

@Temperature 566 °C
27 %

@Temperature 1050 °F
Reduction of Area 58 %
58 %
45 %

@Temperature 427 °C
45 %

@Temperature 801 °F
49 %

@Temperature 316 °C
49 %

@Temperature 601 °F
Modulus of Elasticity 200 GPa
29000 ksi
Notched Tensile Strength 1986 MPa
288000 psi
K<sub>t</sub> = 10
Poissons Ratio 0.29
0.29
Shear Modulus 77.5 GPa
11200 ksi
Calculated
Charpy Impact 64.0 J
47.2 ft-lb
V-notch
68.0 J

@Temperature 316 °C
50.2 ft-lb

@Temperature 601 °F
V-notch
73.0 J

@Temperature 427 °C
53.8 ft-lb

@Temperature 801 °F
V-notch
91.0 J

@Temperature 566 °C
67.1 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
H900 Condition
10.87 µm/m-°C

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

@Temperature 75.2 - 500 °F
H900 Condition
11.75 µm/m-°C

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

@Temperature 75.2 - 1100 °F
H900 Condition
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
H900 Condition
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