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Carpenter Custom 455® 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 455® Stainless Steel, Condition H950 (Age Hardened 510°C).pdf
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Material Notes:
Data provided by Carpenter Technology Corporation.Recognizing the need for high-strength alloys with good corrosion resistance to atmospheric environments, the Carpenter Research Laboratory developed Custom 455® stainless, a martensitic age-hardenable stainless steel. This alloy is relatively soft and formable in the annealed condition. A single-step aging treatment develops exceptionally high yield strength with good ductility and toughness. This stainless can be machined in the annealed condition, and welded in much the same manner as other precipitation hardenable stainless steels. Because of its low work-hardening rate, it can be extensively cold formed. The dimensional change during hardening is only about -0.001 in/in, which permits close-tolerance finish machining in the annealed state. Custom 455 stainless represents a significant advancement in the area of precipitation hardening stainless steels. It should be considered where simplicity of heat treatment, ease of fabrication, high strength and corrosion resistance are required in combination.Because of the unique combination of high strength and corrosion resistance of Custom 455 stainless there are few other alloys available for consideration. Carpenter PH13-8 Mo can be considered where good transverse toughness and ductility are necessary in large sections.Custom 455® 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 459
459
Estimated from Rockwell C for Brinell test with 3000 kg load, 10 mm ball.
Hardness, Knoop 504
504
Estimated from Rockwell C
Hardness, Rockwell C 48
48
Hardness, Vickers 482
482
Estimated from Rockwell C
Tensile Strength, Ultimate 1586 MPa
230000 psi
896 MPa

@Temperature 538 °C
 130000 psi

@Temperature 1000 °F
1207 MPa

@Temperature 427 °C
 175100 psi

@Temperature 801 °F
1345 MPa

@Temperature 316 °C
 195100 psi

@Temperature 601 °F
1689 MPa

@Temperature -73.0 °C
 245000 psi

@Temperature -99.4 °F
1931 MPa

@Temperature -184 °C
 280100 psi

@Temperature -299 °F
Tensile Strength, Yield 1517 MPa

@Strain 0.200 %
 220000 psi

@Strain 0.200 %
758 MPa

@Strain 0.200 %,
Temperature 538 °C
 110000 psi

@Strain 0.200 %,
Temperature 1000 °F
1124 MPa

@Strain 0.200 %,
Temperature 427 °C
 163000 psi

@Strain 0.200 %,
Temperature 801 °F
1276 MPa

@Strain 0.200 %,
Temperature 316 °C
 185100 psi

@Strain 0.200 %,
Temperature 601 °F
Elongation at Break 12 %
12 %
In 4D
5.0 %

@Temperature -184 °C
 5.0 %

@Temperature -299 °F
11 %

@Temperature -73.0 °C
 11 %

@Temperature -99.4 °F
12 %

@Temperature 316 °C
 12 %

@Temperature 601 °F
 In 4D
14 %

@Temperature 427 °C
 14 %

@Temperature 801 °F
 In 4D
18 %

@Temperature 538 °C
 18 %

@Temperature 1000 °F
 In 4D
Reduction of Area 50 %
50 %
20 %

@Temperature -184 °C
 20 %

@Temperature -299 °F
45 %

@Temperature -73.0 °C
 45 %

@Temperature -99.4 °F
50 %

@Temperature 316 °C
 50 %

@Temperature 601 °F
60 %

@Temperature 427 °C
 60 %

@Temperature 801 °F
70 %

@Temperature 538 °C
 70 %

@Temperature 1000 °F
Modulus of Elasticity 200 GPa

@Temperature 23.0 °C
 29000 ksi

@Temperature 73.4 °F
Notched Tensile Strength 793 MPa
115000 psi
1931 MPa
280100 psi
2068 MPa
299900 psi
Poissons Ratio 0.30

@Temperature 23.0 °C
 0.30

@Temperature 73.4 °F
Fatigue Strength 680 MPa

@# of Cycles 1.00e+7
98600 psi

@# of Cycles 1.00e+7
R.R. Moore Test, Smooth Rotating Beam
Shear Modulus 76.9 GPa

@Temperature 23.0 °C
 11200 ksi

@Temperature 73.4 °F
Charpy Impact 20.0 J
14.8 ft-lb
V-Notch
4.00 J

@Temperature -184 °C
 2.95 ft-lb

@Temperature -299 °F
 V-Notch
14.0 J

@Temperature -73.0 °C
 10.3 ft-lb

@Temperature -99.4 °F
 V-Notch
Thermal Properties Metric English Comments
CTE, linear 10.6 µm/m-°C

@Temperature 22.0 - 93.0 °C
 5.89 µin/in-°F

@Temperature 71.6 - 199 °F
11.2 µm/m-°C

@Temperature 22.0 - 260 °C
 6.22 µin/in-°F

@Temperature 71.6 - 500 °F
12.0 µm/m-°C

@Temperature 22.0 - 482 °C
 6.67 µin/in-°F

@Temperature 71.6 - 900 °F
Component Elements Properties Metric English Comments
Carbon, C <= 0.050 %
<= 0.050 %
Chromium, Cr 11 - 12.5 %
11 - 12.5 %
Copper, Cu 1.5 - 2.5 %
1.5 - 2.5 %
Iron, Fe 75 %
75 %
as remainder
Manganese, Mn <= 0.50 %
<= 0.50 %
Molybdenum, Mo <= 0.50 %
<= 0.50 %
Nb + Ta 0.10 - 0.50 %
0.10 - 0.50 %
Nickel, Ni 7.5 - 9.5 %
7.5 - 9.5 %
Niobium, Nb (Columbium, Cb) <= 0.50 %
<= 0.50 %
Phosphorous, P <= 0.040 %
<= 0.040 %
Silicon, Si <= 0.50 %
<= 0.50 %
Sulfur, S <= 0.030 %
<= 0.030 %
Tantalum, Ta <= 0.50 %
<= 0.50 %
Titanium, Ti 0.80 - 1.4 %
0.80 - 1.4 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.0000758 ohm-cm

@Temperature 23.0 °C
 0.0000758 ohm-cm

@Temperature 73.4 °F
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