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AK Steel 17-4 PH® Precipitation Hardening Stainless Steel, Condition H 900

Category Metal , Ferrous Metal , Martensitic , Stainless Steel , Precipitation Hardening Stainless
Manufacturer AK Steel
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF AK Steel 17-4 PH® Precipitation Hardening Stainless Steel, Condition H 900.pdf
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Material Notes:
AK Steel 17-4 PH® provides an outstanding combination of high strength, good corrosion resistance, good mechanical properties at temperatures up to 600°F (316°C), and good toughness in both base metal and welds. Short-time, low-temperature heat treatments minimize distortion and scaling. This alloy is widely used in the aerospace, chemical, petrochemical, food processing, paper and general metalworking industries. The material supplied from the mill is in Condition A. After fabrication eight standard heat treatments have been developed to provide a wide range of properties.Information provided by AK Steel
Physical Properties Metric English Comments
Density 7.80 g/cc
0.282 lb/in³
Mechanical Properties Metric English Comments
Hardness, Rockwell C 45
45
Tensile Strength, Ultimate 1448 MPa
210000 psi
Tensile Strength, Yield 1379 MPa

@Strain 0.200 %
200000 psi

@Strain 0.200 %
Elongation at Break 7.0 %
7.0 %
in 2 inches
Thermal Properties Metric English Comments
CTE, linear 10.8 µm/m-°C

@Temperature 21.0 - 93.0 °C
6.00 µin/in-°F

@Temperature 69.8 - 199 °F
11.7 µm/m-°C

@Temperature <=427 °C
6.50 µin/in-°F

@Temperature <=801 °F
Specific Heat Capacity 0.460 J/g-°C
0.110 BTU/lb-°F
Thermal Conductivity 17.9 W/m-K

@Temperature 149 °C
124 BTU-in/hr-ft²-°F

@Temperature 300 °F
22.6 W/m-K

@Temperature 482 °C
157 BTU-in/hr-ft²-°F

@Temperature 900 °F
Component Elements Properties Metric English Comments
Carbon, C <= 0.070 %
<= 0.070 %
Chromium, Cr 15 - 17.5 %
15 - 17.5 %
Copper, Cu 3.0 - 5.0 %
3.0 - 5.0 %
Iron, Fe 69.91 - 78.85 %
69.91 - 78.85 %
As Remainder
Manganese, Mn <= 1.0 %
<= 1.0 %
Nb + Ta 0.15 - 0.45 %
0.15 - 0.45 %
Nickel, Ni 3.0 - 5.0 %
3.0 - 5.0 %
Phosphorous, P <= 0.040 %
<= 0.040 %
Silicon, Si <= 1.0 %
<= 1.0 %
Sulfur, S <= 0.030 %
<= 0.030 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.0000770 ohm-cm
0.0000770 ohm-cm
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