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Haynes 625SQ® Nickel Alloy Sheet

Category Metal , Nonferrous Metal , Nickel Alloy
Manufacturer Haynes International, Inc.
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Haynes 625SQ® Nickel Alloy Sheet.pdf
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Material Notes:
Haynes 625SQ alloy is a solid-solution strengthened superalloy. It is a modification of Haynes 625 alloy designed to enhance resistance to fatigue at temperatures up to approximately 1200°F (649°C). The alloy composition is tightly controlled to very low levels of carbon, silicon, and nitrogen. Primary melting is by vacuum induction melting, followed by consumable electrode practice using electroslag remelting. During processing, the grain size is controlled to ASTM #5 or finer. Haynes 625SQ alloy sheet and strip meet the requirements of AMS 5879 and AMS 5599 specifications. Haynes 625SQ alloy is readily fabricated and welded using practices common to Haynes 625 alloy. Haynes 625SQ alloy sheet and strip find application in aerospace, automotive, and chemical process industry bellows, expansion joints, and fabrications where fatigue resistance, strength, and corrosion resistance are required.Data provided by the manufacturer, Haynes International, Inc.
Physical Properties Metric English Comments
Density 8.44 g/cc
0.305 lb/in³
Mechanical Properties Metric English Comments
Tensile Strength, Ultimate 497 MPa

@Temperature 760 °C
 72100 psi

@Temperature 1400 °F
 AMS 5879
646 MPa

@Temperature 705 °C
 93700 psi

@Temperature 1300 °F
 AMS 5879
776 MPa

@Temperature 425 °C
 113000 psi

@Temperature 797 °F
 AMS 5879
776 MPa

@Temperature 540 °C
 113000 psi

@Temperature 1000 °F
 AMS 5879
787 MPa

@Temperature 650 °C
 114000 psi

@Temperature 1200 °F
 AMS 5879
809 MPa

@Temperature 315 °C
 117000 psi

@Temperature 599 °F
 AMS 5879
895 MPa

@Temperature 25.0 °C
 130000 psi

@Temperature 77.0 °F
 AMS 5879
Tensile Strength, Yield 306 MPa

@Strain 0.200 %,
Temperature 705 °C
 44400 psi

@Strain 0.200 %,
Temperature 1300 °F
 AMS 5879
323 MPa

@Strain 0.200 %,
Temperature 650 °C
 46800 psi

@Strain 0.200 %,
Temperature 1200 °F
 AMS 5879
339 MPa

@Strain 0.200 %,
Temperature 425 °C
 49200 psi

@Strain 0.200 %,
Temperature 797 °F
 AMS 5879
344 MPa

@Strain 0.200 %,
Temperature 540 °C
 49900 psi

@Strain 0.200 %,
Temperature 1000 °F
 AMS 5879
353 MPa

@Strain 0.200 %,
Temperature 315 °C
 51200 psi

@Strain 0.200 %,
Temperature 599 °F
 AMS 5879
452 MPa

@Strain 0.200 %,
Temperature 25.0 °C
 65600 psi

@Strain 0.200 %,
Temperature 77.0 °F
 AMS 5879
3223 MPa

@Strain 0.200 %,
Temperature 760 °C
 467500 psi

@Strain 0.200 %,
Temperature 1400 °F
 AMS 5879
Elongation at Break 51.7 %

@Temperature 25.0 °C
 51.7 %

@Temperature 77.0 °F
 2-inch (51 mm) sample; AMS 5879
60.9 %

@Temperature 425 °C
 60.9 %

@Temperature 797 °F
 2-inch (51 mm) sample; AMS 5879
64.1 %

@Temperature 315 °C
 64.1 %

@Temperature 599 °F
 2-inch (51 mm) sample; AMS 5879
81.4 %

@Temperature 650 °C
 81.4 %

@Temperature 1200 °F
 2-inch (51 mm) sample; AMS 5879
88.8 %

@Temperature 760 °C
 88.8 %

@Temperature 1400 °F
 2-inch (51 mm) sample; AMS 5879
90.5 %

@Temperature 540 °C
 90.5 %

@Temperature 1000 °F
 2-inch (51 mm) sample; AMS 5879
103.9 %

@Temperature 705 °C
 103.9 %

@Temperature 1300 °F
 2-inch (51 mm) sample; AMS 5879
Modulus of Elasticity 126 GPa

@Temperature 1000 °C
 18300 ksi

@Temperature 1830 °F
 Dynamic
142 GPa

@Temperature 900 °C
 20600 ksi

@Temperature 1650 °F
 Dynamic
153 GPa

@Temperature 800 °C
 22200 ksi

@Temperature 1470 °F
 Dynamic
163 GPa

@Temperature 700 °C
 23600 ksi

@Temperature 1290 °F
 Dynamic
171 GPa

@Temperature 600 °C
 24800 ksi

@Temperature 1110 °F
 Dynamic
186 GPa

@Temperature 400 °C
 27000 ksi

@Temperature 752 °F
 Dynamic
199 GPa

@Temperature 200 °C
 28900 ksi

@Temperature 392 °F
 Dynamic
208 GPa

@Temperature 20.0 °C
 30200 ksi

@Temperature 68.0 °F
 Dynamic
Thermal Properties Metric English Comments
CTE, linear 14.2 µm/m-°C

@Temperature 20.0 - 500 °C
 7.89 µin/in-°F

@Temperature 68.0 - 932 °F
14.8 µm/m-°C

@Temperature 20.0 - 600 °C
 8.22 µin/in-°F

@Temperature 68.0 - 1110 °F
15.4 µm/m-°C

@Temperature 20.0 - 700 °C
 8.56 µin/in-°F

@Temperature 68.0 - 1290 °F
16.1 µm/m-°C

@Temperature 20.0 - 800 °C
 8.94 µin/in-°F

@Temperature 68.0 - 1470 °F
16.8 µm/m-°C

@Temperature 20.0 - 900 °C
 9.33 µin/in-°F

@Temperature 68.0 - 1650 °F
17.4 µm/m-°C

@Temperature 20.0 - 1000 °C
 9.67 µin/in-°F

@Temperature 68.0 - 1830 °F
Thermal Conductivity 15.3 W/m-K

@Temperature 400 °C
 106 BTU-in/hr-ft²-°F

@Temperature 752 °F
18.3 W/m-K

@Temperature 600 °C
 127 BTU-in/hr-ft²-°F

@Temperature 1110 °F
19.8 W/m-K

@Temperature 700 °C
 137 BTU-in/hr-ft²-°F

@Temperature 1290 °F
21.5 W/m-K

@Temperature 800 °C
 149 BTU-in/hr-ft²-°F

@Temperature 1470 °F
23.4 W/m-K

@Temperature 900 °C
 162 BTU-in/hr-ft²-°F

@Temperature 1650 °F
25.6 W/m-K

@Temperature 1000 °C
 178 BTU-in/hr-ft²-°F

@Temperature 1830 °F
Melting Point 1290 - 1350 °C
2350 - 2460 °F
Solidus 1290 °C
2350 °F
Liquidus <= 1350 °C
<= 2460 °F
Component Elements Properties Metric English Comments
Aluminum, Al <= 0.40 %
<= 0.40 %
Carbon, C <= 0.030 %
<= 0.030 %
Cb + Ta 3.7 %
3.7 %
Chromium, Cr 21 %
21 %
Cobalt, Co <= 1.0 %
<= 1.0 %
Iron, Fe <= 5.0 %
<= 5.0 %
Manganese, Mn <= 0.50 %
<= 0.50 %
Molybdenum, Mo 9.0 %
9.0 %
Nickel, Ni >= 62 %
>= 62 %
as balance
Nitrogen, N <= 0.020 %
<= 0.020 %
Silicon, Si <= 0.15 %
<= 0.15 %
Titanium, Ti <= 0.40 %
<= 0.40 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.000134 ohm-cm

@Temperature 200 °C
 0.000134 ohm-cm

@Temperature 392 °F
0.0001348 ohm-cm

@Temperature 1000 °C
 0.0001348 ohm-cm

@Temperature 1830 °F
0.0001356 ohm-cm

@Temperature 400 °C
 0.0001356 ohm-cm

@Temperature 752 °F
0.0001356 ohm-cm

@Temperature 900 °C
 0.0001356 ohm-cm

@Temperature 1650 °F
0.0001365 ohm-cm

@Temperature 800 °C
 0.0001365 ohm-cm

@Temperature 1470 °F
0.0001375 ohm-cm

@Temperature 700 °C
 0.0001375 ohm-cm

@Temperature 1290 °F
0.0001379 ohm-cm

@Temperature 600 °C
 0.0001379 ohm-cm

@Temperature 1110 °F
Processing Properties Metric English Comments
Annealing Temperature >= 871 °C
>= 1600 °F
Bright Anneal; AMS 5879
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