Best Stainless offers high quality standards including UNS S, AMS , ASTM A, and ASTM A Grade PH stainless steel can be used. This standard is issued under the fixed designation A /A M; the number . [ mm] round bar, 10 to 12 ft [ to m] in length, ASTM A See the chemical composition and physical properties of ASTM A Grade condition HM, find alternative materials, and connect with suppliers.

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A number in parentheses indicates the year of last reapproval. A superscript asm indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense. Hot-nished or cold-nished rounds, squares, hexagons, bar shapes, angles, tees, and channels are included; these shapes may be produced by hot rolling, extruding, or forging.

Billets or bars for reforging may be purchased to this specication. They are suitable for machining in the solution-annealed condition after which they may be age-hardened to the mechanical properties specied in Section 7 without danger of cracking or distortion. Type XM is machinable in the as-received fully heat treated condition. Type UNS S is suitable for machining in the solution-annealed, cold-worked, and aged-hardened condition.

Applications should be limited to small diameter bar. The values stated in each system are not exact equivalents; therefore, each system must be used independent of the other. Combining values from the two systems may result in nonconformance with the specication.


Such requirements may include but are not limited to the following: Current edition approved May 1, Originally approved in Limits are in percent maximum unless shown as a range or stated otherwise. C Columbium plus tantalum 0. F Columbium plus tantalum 0. G Columbium 8 times carbon minimum. NOTE 3—A typical ordering description is as follows: Mechanical Properties Requirements 7. The limiting permanent offset shall be 0.

When specied, the material, as represented by impact test specimens, shall be capable of developing the impact property requirements specied asfm Table 4 when heat treated in accordance with 5. Materials and Ashm 5. A 87 [] 58 [] C Either Rockwell C hardness or Brinell is permissible.

D BH for rounds cold drawn after solution treating. F Maximum ksi [ MPa] tensile strength only for sizes up to 12 in.

ASTM A564 Grade 630 condition H1150M

Elongation in 2 in. CW 12 hard CW full hard 7. Number of Tests 8. Unless otherwise specied in the purchase order, the condition of hardening heat treatment shall be at the option of the producer. The tests shall meet the requirements of Table 4.

ASTM A – Martensitic Stainless Steel

The specimens shall be heat treated in accordance with 5. Warm in air to room temperature. RH Up to 4 in. Up to 6 in.

Up to 4 in. H [] 4. Hold for not less than 3 h.

Up to 12 in. Time refers to minimum time material is at temperature and may be extended to obtain required ductility properties. C Unless otherwise noted, temperatures shown are suggested temperatures and may be varied to obtain required tensile properties.

D Intermediate temperatures must meet the ductility requirements of the next highest suggested hardening or aging temperature, or both.


PH Stainless Steel Bar – ASTM A Supplier | Best Stainless

E L – Longitudinal axis of specimen parallel to direction of grain ow during rolling or forging. T – Transverse axis of specimen perpendicular to direction of grain ow during rolling or forging. G Either Rockwell C hardness or Brinell is permissible.

On sizes satm in.

H When air cooling is specied, gases other than air may be used. I Refer to Table 2 for details wstm equalize and over temper heat treatment.

ASTM A 564

Users of this standard are expressly advised that determination a546 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 ve years and if not revised, either reapproved or withdrawn.

Your comments are invited either for revision of this standard or for additional standards and ashm be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting asmt 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 adtm contacting ASTM at the above address or at phonefaxor service astm.