Referenced Documents ASTM Standards: A 27/A 27M Speciﬁcation for Steel Castings, Carbon, A /A M A /A M Speciﬁcation for Castings. ASTM A – 4CTb Designation: A /A M – 01” An American National Standard Standard Pra. 费下载 免 w 焊接人 w Designation: A /A M – 07 Standard Practice for Steel Castings, Welding, Quali?cations of.
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Metric Equivalents Y 8 [mml t, in.
A Indicate the number for controlling the maximum width. When postweld heat treatment consists a88 a full reheat treatment of the welded part, thus eliminating the HAZ, impact testing of the HAZ shall not be required. Indialte amenskn ofmaximum gap.
A Indicate minimum temperature.
ASTM AAM 钢铸件焊接程序和人员资格的标准实施规程_百度文库
C Where only a single coupon is required, the center of the specimen should be midway between the surfaces. Qualification under any F number up to and including F4 shall qual a welder for all lower F numbers. A superscript epsilon e indicates an editorial change since the last revision or reapproval. The notch shall be cut normal to the material surface in the asgm zone to include as much heat-affected zone as possible in the resulting fracture Fig.
The aa488 of the specimen turned toward the gap of the jig shall be the face for face-bend specimens, the root for root-bend specimens, and the side with the greater number of defects, if any, for side-bend specimens. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other.
The other two surfaces shall be called the face and root surfaces, the face surface having the greater width of weld. Historical Version s – view previous versions of standard. It is the astk o the user o this standard to establish approf f priate safety and health practices and determine the applicability o regulatory limitations prior to use.
A Indicate heat treatment before welding. Filler Metal Specification No. Work Item s – proposed revisions of this standard. Current z488 approved May 1, Charpy Impact Test 9.
When specimens wider than 1.
This standard has been approved f o r use by agencies of the Department of Defense. Tensile strength less than 85 ksi [ MPa].
Standard Practice for Steel Castings, Welding, Qualifications of Procedures and Personnel
Performance Qualification of Welders or Operators The base material shall be attached B to the welding electrode lead. Designation of nominal chemical composition may also be by reference to the AWS classification where such existsthe manufacturer’s trade designation, or other established procurement documents. Referenced Documents purchase separately Astk documents listed below are referenced within the subject standard but are not provided as part of asrm standard.
Combining values from the two systems may result in nonconformance with this practice. The presence or absence of up to 0. Each specimen shall be tested and meet the requirements of 7.
Groove dimensions as shown in Fig. 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 five years and if not revised, either reapproved or withdrawn.
Indicate any limits on peening?
B Weld should be in center of reduced section. Root Bend 2 A Indicate material of backing plate. 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.