The material should conform to the required mechanical properties in both aged and unaged conditions. Precipitation hardening is accomplished by holding the material at a high temperature, followed by furnace cooling and then air cooling. Monel K is readily fabricated by standard commercial procedures. Welding alloy K is best accomplished by the gas-tungsten-arc welding process.

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A number in parentheses indicates the year of last reapproval. A superscript epsilon e indicates an editorial change since the last revision or reapproval. Scope 1. The values given in parentheses are for information only. Referenced Documents 2. Terminology 3. Ordering Information 4. Chemical Composition 5. Current edition approved Feb. Published February Originally approved in Last previous edition approved in as B β€” 96a. Dimensions apply to diameter of rods, to distance between parallel surfaces of hexagons and squares, and separately to width and thickness of rectangles.

No tensile tests are required except as provided for in 9. Rounds over 41? Mechanical Properties 6. After aging the material shall conform to the mechanical properties speci?

Dimensions and Permissible Variations 7. Cold-worked wire shall not be out-of-round by more than one-half the total permissible variations in diameter shown in Table 7. Mill age-hardened products have been precipitation heat treated by the manufacturer and further thermal treatment normally is not required.

Hot-worked, cold-worked, or annealed material is normally age hardened by the purchaser after forming or machining. B Not applicable to subsize tensile specimens less than 0.

C Hardness values are given for information only and are not the basis for acceptance or rejection. D Rounds over 41? E When speci? F Applicable to both hot-worked and cold-worked material. Applicable to material in coil. For material in straightened and cut lengths, deduct 15 ksi MPa from above values. Mill age-hardened products have been precipitation heat treated by the manufacturer and further thermal treatment is not normally required. C A Dimensions apply to diameter of rounds, to distance between parallel surfaces of hexagons and squares, and separately to width and thickness of rectangles.

B For cold-worked, age-hardened, bright? The rod then shall be rotated slowly against the indicator, and the deviation from straightness in any portion of the rod between the supports shall not exceed the permissible variations prescribed in Table The deviation from straightness throw in one revolution is de? The maximum curvature depth of chord shall not exceed the value indicated multiplied by length in feet. C The throw in one revolution in any 20 ft 6.

B The allowances for hot-worked material in Table 5 are recommended for rods machined in lengths of 3 ft 0. Hot-worked material to be machined in longer lengths should be speci? C Applicable to 3 ft 0.

For each multiple, an allowance of 1? B For cold-worked rods and bars under 1? The specimen shall be obtained from the actual material to be shipped or from a forged test coupon when applicable. The specimen shall be aged, or annealed and aged, as required by either applicable Table 5 or Table 6. Tests need not be repeated when unaged material from the same heat can be identi?

Number of Tests Specimen Preparation When a full cross section size test cannot be performed, the largest possible round specimen shown in Test Methods E 8 shall be used. Longitudinal strip 4 8. Workmanship, Finish, and Appearance 8.

Sampling 9. B β€” 04 specimens shall be prepared in accordance with Test Methods E 8 for rectangular bar up to 1? NOTE 1β€”In order that the hardness determinations may be in reasonably close agreement, the following procedures are recommended: Rounded Unit for Observed or Calculated Value Chemical composition, hardness, Nearest unit in the last right-hand place and tolerances when expressed in of?

If two decimals choices are possible, as when the digits dropped are exactly a 5 or a 5 f ollowed only by zeros, choose the one ending in an even digit, with zero de? Tensile strength and yield strength nearest psi 6. Inspection Rejection and Rehearing Rejection should be reported to the manufacturer or supplier promptly and in writing. In case of dissatisfaction with the results of the test, the manufacturer or supplier may make claim for a rehearing.

When speci? Product Marking Keywords Test Methods Special End Uses S1. In the event that more critical quality or more rigid inspection standards than those called out in this speci? ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.

Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.

Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phone , fax , or service astm.


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