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Carpenter Custom 630 (17-Cr-4Ni) Precipitation Hardening Stainless Steel, Condition H 1100 (Heated 593°C)
Categories: Metal; Ferrous Metal; Stainless Steel; Precipitation Hardening Stainless; T S10000 Series Stainless Steel

Material Notes: Data provided by Carpenter Technology Corporation.

Custom 630 (17Cr-4Ni) is a martensitic precipitation/age-hardening stainless steel offering high strength and hardness along with excellent corrosion resistance. It has good fabricating characteristics and can be age hardened by a single-step, low temperature treatment. It has been used for a variety of applications including oil field valve parts, chemical process equipment, aircraft fittings, fasteners, pump shafts, nuclear reactor components, gears, paper mill equipment, missile fittings, and jet engine parts. Project 70® stainless Custom 630 is an improved machinability modification.

Key Words: AISI 630; UNS S17400; 17-4PH, 17/4PH, 17-4 PH, Precipitation Hardening PH Stainless Steel, 17-4
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Physical PropertiesMetricEnglishComments
Density 7.81 g/cc0.282 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Ultimate 1034 MPa150000 psi
 1331 MPa
@Temperature 0.000 °C
193000 psi
@Temperature 32.0 °F
 1440 MPa
@Temperature -40.0 °C
209000 psi
@Temperature -40.0 °F
 1441 MPa
@Temperature -62.0 °C
209000 psi
@Temperature -79.6 °F
 1710 MPa
@Temperature -196 °C
248000 psi
@Temperature -321 °F
Tensile Strength, Yield 931 MPa
@Strain 0.2 %
135000 psi
@Strain 0.2 %
 1262 MPa
@Strain 0.2 %,
Temperature 0.000 °C
183000 psi
@Strain 0.2 %,
Temperature 32.0 °F
 1303 MPa
@Strain 0.2 %,
Temperature -40.0 °C
189000 psi
@Strain 0.2 %,
Temperature -40.0 °F
 1351 MPa
@Strain 0.2 %,
Temperature -62.0 °C
195900 psi
@Strain 0.2 %,
Temperature -79.6 °F
 1675 MPa
@Strain 0.2 %,
Temperature -196 °C
242900 psi
@Strain 0.2 %,
Temperature -321 °F
Elongation at Break 17 %17 %In 50 mm
 8.0 %
@Temperature -196 °C
8.0 %
@Temperature -321 °F
In 50 mm
 15 %
@Temperature -62.0 °C
15 %
@Temperature -79.6 °F
In 50 mm
 16 %
@Temperature -40.0 °C
16 %
@Temperature -40.0 °F
In 50 mm
 16 %
@Temperature 0.000 °C
16 %
@Temperature 32.0 °F
In 50 mm
Modulus of Elasticity 197 GPa28600 ksi
Poissons Ratio 0.2720.272
Shear Modulus 77.4 GPa11200 ksiCalculated
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.0000770 ohm-cm0.0000770 ohm-cmfor condition H 900
 
Thermal PropertiesMetricEnglishComments
CTE, linear  11.5 µm/m-°C
@Temperature 21.0 - 93.0 °C
6.39 µin/in-°F
@Temperature 69.8 - 199 °F
 12.2 µm/m-°C
@Temperature 21.0 - 316 °C
6.78 µin/in-°F
@Temperature 69.8 - 601 °F
 12.5 µm/m-°C
@Temperature 21.0 - 427 °C
6.94 µin/in-°F
@Temperature 69.8 - 801 °F
Specific Heat Capacity 0.419 J/g-°C
@Temperature 0.000 - 100 °C
0.100 BTU/lb-°F
@Temperature 32.0 - 212 °F
condition H 900
Thermal Conductivity  17.9 W/m-K
@Temperature 149 °C
124 BTU-in/hr-ft²-°F
@Temperature 300 °F
condition H 900
 22.6 W/m-K
@Temperature 482 °C
157 BTU-in/hr-ft²-°F
@Temperature 900 °F
condition H 900
 
Component Elements PropertiesMetricEnglishComments
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 73 %73 %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 %
Niobium, Nb (Columbium, Cb) <= 0.45 %<= 0.45 %
Phosphorus, P <= 0.040 %<= 0.040 %
Silicon, Si <= 1.0 %<= 1.0 %
Sulfur, S <= 0.030 %<= 0.030 %
Tantalum, Ta <= 0.45 %<= 0.45 %

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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NCARHA / 15777

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