ASTM B standard specification for copper beryllium alloy rod and bar – Designation: B /B The following alloys meet the ASTM-B standard. Select an alloy for product specifications: C Copper Alloy C is the most commonly specified. ASTM B, AMS , SAE J, RWMA CLASS IV. C is also known as Alloy 25 and is the most commonly utilized beryllium copper alloy and is notable .

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C, C, and C The mechanical requirements of Table 3 do not apply to such special heat treatments.

ASTM B / BM – 18 Standard Specification for Copper-Beryllium Alloy Rod and Bar

Mechanical Property Requirements Solution heat treated A Hard H all sizes up to 3? The machinability rating of this alloy is This alloy’s capacity for being hot formed is rated as “good”. NOTE 1—Mechanical property data determined on other than round cross sections, for sizes under 0. C The upper limits in the tensile strength column are for design guidance only.

Combining values from the two systems may result in nonconformance with the speci? Combining values from the two systems may result in nonconformance with the specification.

This standard has been g196 for use by agencies of the Department of Defense.

C17300 Copper Alloys Material Property Data Sheet – Product availability and request a quote

This abstract is a brief summary of the referenced standard. Historical Version s – view previous versions of standard. Within b1966 text, the SI units are shown in brackets.


The hardness requirements shall be as prescribed in Table 2 for solution heat treated or solution heat treated and cold worked and in Table 4 after prescribed heat treatment. Now offering hollows upon request. One is to be tested in the as-sampled condition, and one in the precipitation heat-treated condition. Number of Tests and Retests The tensile strength requirements shall be prescribed in Table 2 and Table 3 after precipitation heat treatment in accordance with 8.

We specialize in beryllium bar, but offer an additional selection of beryllium copper bar in a variety of additional specifications and offer cut to length programs from our strategically located facilities around the world. The following section was renumbered. Distributors will offer small quantity buys while mills will generally only sell large quantities, with delivery times anywhere from 10 to 50 weeks depending on adtm and form required This material is stocked primarily in Bar Products by 5 distributors but is also available to a lesser extent in Wire Products, and Flat Rolled Products.

Further thermal treatments of these tempers are not normally required. The following three alloys are included: Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Workmanship, Finish and Appearance Dimensions and Permissible Variations Alloys are used in a wide range of applications requiring very high v196 and stiffness with good conductivity.


Originally approved in to replace portions of B — 41 T. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. This specification establishes the requirements for rods and bars in straight lengths of copper-beryllium alloys with Copper Alloy UNS Nos.

TF00 Solution heat treated AT up to 3, incl. The annealing temperature for this alloy is between F. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.

These products meet property requirements in Table 3 and normally require no further heat treatment by the user. Precipitation Heat Treatment 9. The recommended hot working temperature for this alloy is between F. This was corrected to the proper 10 — 25 incl.

This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? C shall be the alloy furnished whenever Speci?