Date Published:Dec. 02. 2016

SUH660 Hex Socket Head Cap Screws (Special Item)

About SUH660

SUH660 is austenitic heat resistant steel. It provides a high strength under high temperature environments and is also used for materials for rotors, bolts, blades, and shafts of gas turbines and steam turbines with operating temperatures of 700°C . It may be used as an A286 equivalent product that is mainly used under high temperature environment.

Characteristics

  • Retains high strength under high temperature environments.
  • Performing age hardening after solution heat treatment provides tensile strength of 900 MPa or higher.

Performance

Chemical Components

unit:%
SUH660
 C  Si  Mn  P  S  Ni  Cr  Mo  W  Co  V  N  Others
 0.08
 or Less
 1.00
 or Less
 2.00
 or Less
 0.040
 or Less
 0.030
 or Less
 24.00
~27.00
 13.50
 ~16.00
 1.00
 ~1.50
- -  0.10
 ~0.50
- Ti:1.90~2.35
Al:0.35or Less
B:0.001~0.010

Mechanical Properties


 SUH660
 Tensile Strength (N/mm2)  900 or More
 0.2%Proof Stress (N/mm2)  590 or More
 Elongation (%)  15 or More

* Mechanical properties are those with solution heat treatment + age hardening material.
* Values in chart are for reference only. They are not guaranteed values.

Production Example

Dimension Table

                                                               unit:mm
 M   L  D1  L1   B
 M3   6   8   10   12   5.5   3   2.5 
 M4   8   10   12   16   20   7   4   3 
 M5   10   12   16   20   25   8.5   5   4 
 M6   12   16   20   25   30   10   6   5