SMS-167 Parts


The following components are made with SMS-167: our own unique, superior quality alloy. As a result, these parts resist more corrosion, last longer, and perform better than products made using Beryllium Copper alloys. While these are our most popular SMS-167 components, any other parts made with BeCu in our catalog can also be made with SMS-167 upon request.

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                3" Poppet Housing
             Standard Holes (3/16")

             Gamma Intermodule End

        Interconnect Shaft Integrated
                For use with 4.379"
            Not Wired: SMS-3335
              Wired: SMS-3335-W
                 For use with 5" Fin
                   Wired: 3335-06

                3" Poppet Housing
               Small Holes (1/16")

                  Intermodule End

                   MWD Washer
               0.125": SMS-3804
               0.063": SMS-3802

               Interconnect Housing

              Battery Intermodule End

             Integrated Spearpoint

SMS-167 Technical Specifications


SMS-167 is SMS Precision Tech's own precipitation hardened and cold worked alloy. It offers superior creep strength, ductility and corrosion resistance for use in high-erosion environments. It was developed as a high-grade, non-carcinogenic replacement for Beryllium Copper alloys. SMS-167 is an option for select products in our catalog that require advanced resistance to high-stress conditions.

The mechanical properties detailed below are typical results and related to SMS proprietary specifications.


Mechanical Properties

Yield Strength (0.2% offset)                             165,000 - 185,000 PSI
Tensile Strength (min)                                                         180,000 min
Elongation in 2 in., (% min)                                                          10% min
Hardness Range                                                                     36-40 HRC
Density (lbs/                                                         0.286 lbs/
Typical Magnetic Permeability                                           1.007 - 1.012


Chemical Composition

                                                                          Weight %

C                                                                        0.08 max
Mn                                                                     0.35 max
Si                                                                        0.30 max
Ni                                                                    24.0 - 27.0
Cr                                                                    13.5 - 16.0
Mo                                                                   1.00 - 1.50
V                                                                      0.10 - 0.50
Ti                                                                     1.90 - 2.35
Al                                                                          0.35 max
B                                                                  0.003 - 0.010
Fe                                                                                    Bal